/capabilities/hydrometallurgy-0 en /capabilities/hydrometallurgy/crystallization <div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even" property="content:encoded"><p>91ÆÞÓÑ has performed the necessary laboratory experiments and pilot plant operations to provide vendors with the data necessary to design commercial crystallizers. Our experience has included recovering metal salts and trona from solutions.</p> <p>Crystallization is used extensively to remove impurities and recover valuable minerals from brines in solar ponds. 91ÆÞÓÑ can perform evaporation experiments in the lab to determine how to best recover valuable minerals by solar evaporation.</p> </div></div></div><div class="field field-name-field-introduction-copy field-type-text-long field-label-above"><div class="field-label">Introduction Copy:&nbsp;</div><div class="field-items"><div class="field-item even">Some commercial inorganic materials are recovered by crystallization, providing a purified product.</div></div></div><div class="field field-name-field-main-image field-type-image field-label-above"><div class="field-label">Main Image:&nbsp;</div><div class="field-items"><div class="field-item even"><img typeof="foaf:Image" src="/sites/default/files/crystalsa.jpg" width="1004" height="824" alt="" /></div></div></div><div class="field field-name-field-contact-reference field-type-blockreference field-label-above"><div class="field-label">Add Contact Reference:&nbsp;</div><div class="field-items"><div class="field-item even"><div id="block-block-7" class="block block-block contact-hazen-block first odd"> <h4><a href="/contact">Contact 91ÆÞÓÑ</a></h4> <p>Main (303) 279 4501<br /> Fax (303) 278 1528<br /> <a href="/contact">E-mail</a>  /  <a href="http://goo.gl/maps/kF2aK" target="_blank">Directions</a><br /><a href="/contact">Submit RFP</a></p> </div></div></div></div><div class="field field-name-field-service-applications field-type-entityreference field-label-above"><div class="field-label">Service Applications:&nbsp;</div><div class="field-items"><div class="field-item even">Flowsheet Development</div><div class="field-item odd">Laboratory Investigations</div><div class="field-item even">Process Development</div></div></div><div class="field field-name-field-related-capabilities field-type-entityreference 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class="menu__link">Radiochemistry</a></li> <li class="menu__item is-leaf leaf menu-mlid-530"><a href="/capabilities/analytical-services/geologic-materials" class="menu__link">Geologic Materials</a></li> <li class="menu__item is-leaf leaf menu-mlid-529"><a href="/capabilities/analytical-services/precious-metals-fire-assaying" class="menu__link">Precious Metals/Fire Assaying</a></li> <li class="menu__item is-leaf leaf menu-mlid-531"><a href="/capabilities/analytical-services/fuels" class="menu__link">Fuels</a></li> <li class="menu__item is-leaf leaf menu-mlid-532"><a href="/capabilities/analytical-services/sample-preparation" class="menu__link">Sample Preparation</a></li> <li class="menu__item is-leaf last leaf menu-mlid-533"><a href="/capabilities/analytical-services/quality-control" class="menu__link">Quality Control</a></li> </ul></li> <li class="menu__item is-expanded expanded menu-mlid-504"><a href="/capabilities/process-mineralogy" class="menu__link">Process Mineralogy</a><ul 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href="/capabilities/mineral-beneficiation" class="menu__link">Mineral Beneficiation</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-537"><a href="/capabilities/mineral-beneficiation/gravity-separation" class="menu__link">Gravity Separation</a></li> <li class="menu__item is-leaf leaf menu-mlid-538"><a href="/capabilities/mineral-beneficiation/froth-flotation" class="menu__link">Froth Flotation</a></li> <li class="menu__item is-leaf leaf menu-mlid-539"><a href="/capabilities/mineral-beneficiation/magnetic-separation" class="menu__link">Magnetic Separation</a></li> <li class="menu__item is-leaf last leaf menu-mlid-540"><a href="/capabilities/mineral-beneficiation/other-beneficiation-methods" class="menu__link">Other Beneficiation Methods</a></li> </ul></li> <li class="menu__item is-expanded expanded menu-mlid-502"><a href="/capabilities/hydrometallurgy" class="menu__link">Hydrometallurgy</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-541"><a href="/capabilities/hydrometallurgy/leaching" class="menu__link">Leaching</a></li> <li class="menu__item is-leaf leaf menu-mlid-542"><a href="/capabilities/hydrometallurgy/high-pressure-leaching" class="menu__link">High-Pressure Leaching</a></li> <li class="menu__item is-leaf leaf menu-mlid-543"><a href="/capabilities/hydrometallurgy/solid-liquid-separation" class="menu__link">Solid-Liquid Separation</a></li> <li class="menu__item is-leaf leaf menu-mlid-544"><a href="/capabilities/hydrometallurgy/precipitation" class="menu__link">Precipitation</a></li> <li class="menu__item is-leaf leaf menu-mlid-545"><a href="/capabilities/hydrometallurgy/solvent-extraction" class="menu__link">Solvent Extraction</a></li> <li class="menu__item is-leaf leaf menu-mlid-546"><a href="/capabilities/hydrometallurgy/adsorption-and-ion-exchange" class="menu__link">Adsorption and Ion Exchange</a></li> <li class="menu__item is-leaf leaf menu-mlid-547"><a href="/capabilities/hydrometallurgy/electrochemistry" class="menu__link">Electrochemistry</a></li> <li class="menu__item is-leaf last leaf menu-mlid-548"><a href="/capabilities/hydrometallurgy/crystallization" class="menu__link">Crystallization</a></li> </ul></li> <li class="menu__item is-expanded expanded menu-mlid-501"><a href="/capabilities/thermal-processing" class="menu__link">Thermal Processing</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-550"><a href="/capabilities/thermal-processing/endothermic-processes" class="menu__link">Endothermic Processes</a></li> <li class="menu__item is-leaf leaf menu-mlid-551"><a href="/capabilities/thermal-processing/pyrometallurgy" class="menu__link">Pyrometallurgy</a></li> <li class="menu__item is-leaf leaf menu-mlid-552"><a href="/capabilities/thermal-processing/materials-processing" class="menu__link">Materials Processing</a></li> <li class="menu__item is-leaf leaf menu-mlid-553"><a 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Remediation/Washing</a></li> <li class="menu__item is-leaf last leaf menu-mlid-677"><a href="/capabilities/environmental/waste-characterization" class="menu__link">Waste Characterization</a></li> </ul></li> <li class="menu__item is-expanded expanded menu-mlid-499"><a href="/capabilities/energy-fuel" class="menu__link">Energy/Fuel</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-562"><a href="/capabilities/energy-fuel/fuels-characterization" class="menu__link">Fuels Characterization</a></li> <li class="menu__item is-leaf last leaf menu-mlid-563"><a href="/capabilities/energy-fuel/field-analysis" class="menu__link">Field Analysis</a></li> </ul></li> <li class="menu__item is-leaf last leaf menu-mlid-497"><a href="/capabilities/comminution" class="menu__link">Comminution</a></li> </ul> </nav><!-- /.block --></div></div></div><div class="field field-name-field-capability-category field-type-taxonomy-term-reference field-label-above"><div class="field-label">Capability Category:&nbsp;</div><div class="field-items"><div class="field-item even"><a href="/capabilities/hydrometallurgy-0" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Hydrometallurgy</a></div></div></div><div class="field field-name-field-page-icon field-type-taxonomy-term-reference field-label-above"><div class="field-label">Page Icon:&nbsp;</div><div class="field-items"><div class="field-item even"><a href="/icons/hydrometallurgy" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Hydrometallurgy</a></div></div></div> Mon, 10 Jun 2013 20:21:06 +0000 hazen-research-admin 46 at /capabilities/hydrometallurgy/electrochemistry <div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even" property="content:encoded"><p>Electrowinning and electrorefining are widely used for copper, nickel, zinc, lead, cobalt, and manganese dioxide production. 91ÆÞÓÑ specialists have experience with all of these.</p> <p>91ÆÞÓÑ has been involved with electrochemical processes as part of <a href="/services/flowsheet-development">flowsheet development</a> for many projects ranging in size from plating laboratory-scale cathodes to experimental work with commercial-length electrodes.</p> <p>Other areas of expertise involving electrochemistry include anode materials development and anodic oxidation processes.</p> </div></div></div><div class="field field-name-field-introduction-copy field-type-text-long field-label-above"><div class="field-label">Introduction Copy:&nbsp;</div><div class="field-items"><div class="field-item even">Electrochemistry is an important method for the recovery of marketable metal product. </div></div></div><div class="field field-name-field-main-image field-type-image field-label-above"><div class="field-label">Main Image:&nbsp;</div><div class="field-items"><div class="field-item even"><img typeof="foaf:Image" src="/sites/default/files/2929-223-5_east.jpg" width="1424" height="2128" alt="" /></div></div></div><div class="field field-name-field-contact-reference field-type-blockreference field-label-above"><div class="field-label">Add Contact Reference:&nbsp;</div><div class="field-items"><div class="field-item even"><div id="block-block-7--2" class="block block-block contact-hazen-block odd"> <h4><a href="/contact">Contact 91ÆÞÓÑ</a></h4> <p>Main (303) 279 4501<br /> Fax (303) 278 1528<br /> <a href="/contact">E-mail</a>  /  <a href="http://goo.gl/maps/kF2aK" target="_blank">Directions</a><br /><a href="/contact">Submit RFP</a></p> </div></div></div></div><div class="field field-name-field-service-applications field-type-entityreference field-label-above"><div class="field-label">Service Applications:&nbsp;</div><div class="field-items"><div class="field-item even">Pilot Plants</div><div class="field-item odd">Process Development</div><div class="field-item even">Consulting and Field Services</div></div></div><div class="field field-name-field-related-capabilities field-type-entityreference field-label-above"><div class="field-label">Related Capabilities:&nbsp;</div><div class="field-items"><div class="field-item even">Environmental</div><div class="field-item odd">Energy/Fuel</div><div class="field-item even">Comminution</div></div></div><div class="field field-name-field-menu-reference field-type-blockreference field-label-above"><div class="field-label">Add Capabilities Menu:&nbsp;</div><div class="field-items"><div class="field-item even"><nav id="block-menu-block-2--2" class="block block-menu-block cap-menu even" role="navigation"> <ul class="menu-block-wrapper menu-block-2 menu-name-menu-capabilities-menu parent-mlid-0 menu-level-1 menu"> <li class="menu__item is-expanded first expanded menu-mlid-505"><a href="/capabilities/analytical-laboratories" class="menu__link">Analytical Laboratories</a><ul class="expanded-child"><li class="menu__item is-leaf first 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</ul></li> <li class="menu__item is-expanded expanded menu-mlid-503"><a href="/capabilities/mineral-beneficiation" class="menu__link">Mineral Beneficiation</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-537"><a href="/capabilities/mineral-beneficiation/gravity-separation" class="menu__link">Gravity Separation</a></li> <li class="menu__item is-leaf leaf menu-mlid-538"><a href="/capabilities/mineral-beneficiation/froth-flotation" class="menu__link">Froth Flotation</a></li> <li class="menu__item is-leaf leaf menu-mlid-539"><a href="/capabilities/mineral-beneficiation/magnetic-separation" class="menu__link">Magnetic Separation</a></li> <li class="menu__item is-leaf last leaf menu-mlid-540"><a href="/capabilities/mineral-beneficiation/other-beneficiation-methods" class="menu__link">Other Beneficiation Methods</a></li> </ul></li> <li class="menu__item is-expanded expanded menu-mlid-502"><a href="/capabilities/hydrometallurgy" class="menu__link">Hydrometallurgy</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-541"><a href="/capabilities/hydrometallurgy/leaching" class="menu__link">Leaching</a></li> <li class="menu__item is-leaf leaf menu-mlid-542"><a href="/capabilities/hydrometallurgy/high-pressure-leaching" class="menu__link">High-Pressure Leaching</a></li> <li class="menu__item is-leaf leaf menu-mlid-543"><a href="/capabilities/hydrometallurgy/solid-liquid-separation" class="menu__link">Solid-Liquid Separation</a></li> <li class="menu__item is-leaf leaf menu-mlid-544"><a href="/capabilities/hydrometallurgy/precipitation" class="menu__link">Precipitation</a></li> <li class="menu__item is-leaf leaf menu-mlid-545"><a href="/capabilities/hydrometallurgy/solvent-extraction" class="menu__link">Solvent Extraction</a></li> <li class="menu__item is-leaf leaf menu-mlid-546"><a href="/capabilities/hydrometallurgy/adsorption-and-ion-exchange" class="menu__link">Adsorption and Ion Exchange</a></li> <li class="menu__item is-leaf leaf menu-mlid-547"><a href="/capabilities/hydrometallurgy/electrochemistry" class="menu__link">Electrochemistry</a></li> <li class="menu__item is-leaf last leaf menu-mlid-548"><a href="/capabilities/hydrometallurgy/crystallization" class="menu__link">Crystallization</a></li> </ul></li> <li class="menu__item is-expanded expanded menu-mlid-501"><a href="/capabilities/thermal-processing" class="menu__link">Thermal Processing</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-550"><a href="/capabilities/thermal-processing/endothermic-processes" class="menu__link">Endothermic Processes</a></li> <li class="menu__item is-leaf leaf menu-mlid-551"><a href="/capabilities/thermal-processing/pyrometallurgy" class="menu__link">Pyrometallurgy</a></li> <li class="menu__item is-leaf leaf menu-mlid-552"><a href="/capabilities/thermal-processing/materials-processing" class="menu__link">Materials Processing</a></li> <li class="menu__item is-leaf leaf menu-mlid-553"><a href="/capabilities/thermal-processing/thermal-process-development" class="menu__link">Thermal Process Development</a></li> <li class="menu__item is-leaf last leaf menu-mlid-554"><a href="/capabilities/thermal-processing/waste-treatment-and-recycling" class="menu__link">Waste Treatment and Recycling</a></li> </ul></li> <li class="menu__item is-expanded expanded menu-mlid-500"><a href="/capabilities/environmental" class="menu__link">Environmental</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-557"><a href="/capabilities/environmental/hazardous-waste-treatment" class="menu__link">Hazardous Waste Treatment</a></li> <li class="menu__item is-leaf leaf menu-mlid-560"><a href="/capabilities/environmental/waste-characterization-remediation" class="menu__link">Waste Characterization for Remediation</a></li> <li class="menu__item is-leaf leaf menu-mlid-561"><a href="/capabilities/environmental/soil-remediation-washing" class="menu__link">Soil Remediation/Washing</a></li> <li class="menu__item is-leaf last leaf menu-mlid-677"><a href="/capabilities/environmental/waste-characterization" class="menu__link">Waste Characterization</a></li> </ul></li> <li class="menu__item is-expanded expanded menu-mlid-499"><a href="/capabilities/energy-fuel" class="menu__link">Energy/Fuel</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-562"><a href="/capabilities/energy-fuel/fuels-characterization" class="menu__link">Fuels Characterization</a></li> <li class="menu__item is-leaf last leaf menu-mlid-563"><a href="/capabilities/energy-fuel/field-analysis" class="menu__link">Field Analysis</a></li> </ul></li> <li class="menu__item is-leaf last leaf menu-mlid-497"><a href="/capabilities/comminution" class="menu__link">Comminution</a></li> </ul> </nav><!-- /.block --></div></div></div><div class="field field-name-field-capability-category field-type-taxonomy-term-reference field-label-above"><div class="field-label">Capability Category:&nbsp;</div><div class="field-items"><div class="field-item even"><a href="/capabilities/hydrometallurgy-0" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Hydrometallurgy</a></div></div></div><div class="field field-name-field-page-icon field-type-taxonomy-term-reference field-label-above"><div class="field-label">Page Icon:&nbsp;</div><div class="field-items"><div class="field-item even"><a href="/icons/hydrometallurgy" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Hydrometallurgy</a></div></div></div> Mon, 10 Jun 2013 20:20:19 +0000 hazen-research-admin 45 at /capabilities/hydrometallurgy/adsorption-and-ion-exchange <div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even" property="content:encoded"><p>Adsorption on activated carbon is the most widely used method to recover gold from cyanide solutions. 91ÆÞÓÑ is experienced in the use of carbon adsorption, carbon-in-leach (CIL), and carbon-in-pulp (CIP) in gold circuits. Carbon recovery processes can be evaluated in batch and continuous operations. 91ÆÞÓÑ’s continuous CIL circuit has been used to design commercial operations.</p> <p>Activated carbon adsorption has also been used to remove mercury and other metals from solutions and to clean organic impurities from aqueous feed and wastewater streams. Other adsorbants, such as clays, aluminas, and zeolites, have been used for impurity removal.</p> <p>Ion exchange is widely used in chemical and mining processes for separating one metal from another and for impurity removal. Examples of ion exchange processes developed at 91ÆÞÓÑ include the recovery of gold and silver from cyanide solutions and alternate lixiviants, and uranium recovery from both acid and carbonate circuits.</p> <p>Ion exchange resins are widely used for removing impurities from aqueous process streams, waste water, and mine waters. In waste water and mine water remediation, ion exchange resins can remove the unwanted impurities, concentrating these impurities in a much smaller stream for further processing.</p> <p>91ÆÞÓÑ has generated the design criteria for many commercial operations using both cationic and anionic resins.</p> </div></div></div><div class="field field-name-field-introduction-copy field-type-text-long field-label-above"><div class="field-label">Introduction Copy:&nbsp;</div><div class="field-items"><div class="field-item even">Adsorption and ion exchange processes can recover dissolved metals from solutions, separate one metal from another in leach liquors, and remove impurities from aqueous streams.</div></div></div><div class="field field-name-field-main-image field-type-image field-label-above"><div class="field-label">Main Image:&nbsp;</div><div class="field-items"><div class="field-item even"><img typeof="foaf:Image" src="/sites/default/files/dsc_0004a.jpg" width="1500" height="1366" alt="" /></div></div></div><div class="field field-name-field-contact-reference field-type-blockreference field-label-above"><div class="field-label">Add Contact Reference:&nbsp;</div><div class="field-items"><div class="field-item even"><div id="block-block-7--3" class="block block-block contact-hazen-block odd"> <h4><a href="/contact">Contact 91ÆÞÓÑ</a></h4> <p>Main (303) 279 4501<br /> Fax (303) 278 1528<br /> <a href="/contact">E-mail</a>  /  <a href="http://goo.gl/maps/kF2aK" target="_blank">Directions</a><br /><a href="/contact">Submit RFP</a></p> </div></div></div></div><div class="field field-name-field-service-applications field-type-entityreference field-label-above"><div class="field-label">Service Applications:&nbsp;</div><div class="field-items"><div class="field-item even">Flowsheet Development</div><div class="field-item odd">Laboratory Investigations</div><div class="field-item even">Pilot Plants</div></div></div><div class="field field-name-field-related-capabilities 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field-name-field-capability-category field-type-taxonomy-term-reference field-label-above"><div class="field-label">Capability Category:&nbsp;</div><div class="field-items"><div class="field-item even"><a href="/capabilities/hydrometallurgy-0" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Hydrometallurgy</a></div></div></div><div class="field field-name-field-page-icon field-type-taxonomy-term-reference field-label-above"><div class="field-label">Page Icon:&nbsp;</div><div class="field-items"><div class="field-item even"><a href="/icons/hydrometallurgy" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Hydrometallurgy</a></div></div></div> Mon, 10 Jun 2013 20:18:04 +0000 hazen-research-admin 44 at /capabilities/hydrometallurgy/solvent-extraction <div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even" property="content:encoded"><p>The liquor is contacted with an organic solvent, chosen for its selectivity towards the element or elements of interest. This technology was first used by mining companies for purification of uranium and vanadium during the uranium boom after World War II, and then for copper in the early 1960s. 91ÆÞÓÑ played a major role in the development of and pilot plant work in the first commercial copper SX–electrowinning plant located at the Bluebird Mine in Arizona.</p> <p>For more than 50 years, 91ÆÞÓÑ has played a significant role in the development of this technology and its transfer from laboratory experiments to commercial operation and continues to assist clients as the technology has spread to other metal recovery systems. We have the experienced staff and facilities to serve clients in all aspects of SX technology, from preliminary shakeout tests to integrated pilot plant operation that provide design and operating criteria. In addition to copper recovery, 91ÆÞÓÑ has developed SX processes to recover:</p> <ul> <li>Nickel and cobalt</li> <li>Uranium and vanadium</li> <li>Phosphoric acid</li> <li>Molybdenum</li> <li>Boron and lithium</li> <li>Platinum group metals</li> <li>Rare earth elements </li> </ul> <p>Our work has resulted in over 20 <a href="/technical-papers">patents</a> for SX technologies, and many operating commercial plants now utilize SX systems developed at 91ÆÞÓÑ.</p> </div></div></div><div class="field field-name-field-introduction-copy field-type-text-long field-label-above"><div class="field-label">Introduction Copy:&nbsp;</div><div class="field-items"><div class="field-item even">Solvent extraction (SX), sometimes called liquid ion exchange, is used to selectively concentrate and purify a desired element after it has been dissolved in an aqueous solution.</div></div></div><div class="field field-name-field-main-image field-type-image field-label-above"><div class="field-label">Main Image:&nbsp;</div><div class="field-items"><div class="field-item even"><img typeof="foaf:Image" src="/sites/default/files/solvent_extraction.jpg" width="1220" height="1025" alt="" /></div></div></div><div class="field field-name-field-contact-reference field-type-blockreference field-label-above"><div class="field-label">Add Contact Reference:&nbsp;</div><div class="field-items"><div class="field-item even"><div id="block-block-7--4" class="block block-block contact-hazen-block odd"> <h4><a href="/contact">Contact 91ÆÞÓÑ</a></h4> <p>Main (303) 279 4501<br /> Fax (303) 278 1528<br /> <a href="/contact">E-mail</a>  /  <a href="http://goo.gl/maps/kF2aK" target="_blank">Directions</a><br /><a href="/contact">Submit RFP</a></p> </div></div></div></div><div class="field field-name-field-service-applications field-type-entityreference field-label-above"><div class="field-label">Service Applications:&nbsp;</div><div class="field-items"><div class="field-item even">Flowsheet 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href="/capabilities/analytical-laboratories" class="menu__link">Analytical Laboratories</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-523"><a href="/capabilities/analytical-services/radiochemistry" class="menu__link">Radiochemistry</a></li> <li class="menu__item is-leaf leaf menu-mlid-530"><a href="/capabilities/analytical-services/geologic-materials" class="menu__link">Geologic Materials</a></li> <li class="menu__item is-leaf leaf menu-mlid-529"><a href="/capabilities/analytical-services/precious-metals-fire-assaying" class="menu__link">Precious Metals/Fire Assaying</a></li> <li class="menu__item is-leaf leaf menu-mlid-531"><a href="/capabilities/analytical-services/fuels" class="menu__link">Fuels</a></li> <li class="menu__item is-leaf leaf menu-mlid-532"><a href="/capabilities/analytical-services/sample-preparation" class="menu__link">Sample Preparation</a></li> <li class="menu__item is-leaf last leaf menu-mlid-533"><a 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href="/capabilities/process-mineralogy/high-resolution-scanning-electron-microscopy-and-microanalysis" class="menu__link">High-Resolution Scanning Electron Microscopy and Microanalysis</a></li> </ul></li> <li class="menu__item is-expanded expanded menu-mlid-503"><a href="/capabilities/mineral-beneficiation" class="menu__link">Mineral Beneficiation</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-537"><a href="/capabilities/mineral-beneficiation/gravity-separation" class="menu__link">Gravity Separation</a></li> <li class="menu__item is-leaf leaf menu-mlid-538"><a href="/capabilities/mineral-beneficiation/froth-flotation" class="menu__link">Froth Flotation</a></li> <li class="menu__item is-leaf leaf menu-mlid-539"><a href="/capabilities/mineral-beneficiation/magnetic-separation" class="menu__link">Magnetic Separation</a></li> <li class="menu__item is-leaf last leaf menu-mlid-540"><a href="/capabilities/mineral-beneficiation/other-beneficiation-methods" class="menu__link">Other Beneficiation Methods</a></li> </ul></li> <li class="menu__item is-expanded expanded menu-mlid-502"><a href="/capabilities/hydrometallurgy" class="menu__link">Hydrometallurgy</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-541"><a href="/capabilities/hydrometallurgy/leaching" class="menu__link">Leaching</a></li> <li class="menu__item is-leaf leaf menu-mlid-542"><a href="/capabilities/hydrometallurgy/high-pressure-leaching" class="menu__link">High-Pressure Leaching</a></li> <li class="menu__item is-leaf leaf menu-mlid-543"><a href="/capabilities/hydrometallurgy/solid-liquid-separation" class="menu__link">Solid-Liquid Separation</a></li> <li class="menu__item is-leaf leaf menu-mlid-544"><a href="/capabilities/hydrometallurgy/precipitation" class="menu__link">Precipitation</a></li> <li class="menu__item is-leaf leaf menu-mlid-545"><a href="/capabilities/hydrometallurgy/solvent-extraction" class="menu__link">Solvent Extraction</a></li> <li class="menu__item is-leaf leaf menu-mlid-546"><a href="/capabilities/hydrometallurgy/adsorption-and-ion-exchange" class="menu__link">Adsorption and Ion Exchange</a></li> <li class="menu__item is-leaf leaf menu-mlid-547"><a href="/capabilities/hydrometallurgy/electrochemistry" class="menu__link">Electrochemistry</a></li> <li class="menu__item is-leaf last leaf menu-mlid-548"><a href="/capabilities/hydrometallurgy/crystallization" class="menu__link">Crystallization</a></li> </ul></li> <li class="menu__item is-expanded expanded menu-mlid-501"><a href="/capabilities/thermal-processing" class="menu__link">Thermal Processing</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-550"><a href="/capabilities/thermal-processing/endothermic-processes" class="menu__link">Endothermic Processes</a></li> <li class="menu__item is-leaf leaf menu-mlid-551"><a href="/capabilities/thermal-processing/pyrometallurgy" class="menu__link">Pyrometallurgy</a></li> <li class="menu__item is-leaf leaf menu-mlid-552"><a href="/capabilities/thermal-processing/materials-processing" class="menu__link">Materials Processing</a></li> <li class="menu__item is-leaf leaf menu-mlid-553"><a href="/capabilities/thermal-processing/thermal-process-development" class="menu__link">Thermal Process Development</a></li> <li class="menu__item is-leaf last leaf menu-mlid-554"><a href="/capabilities/thermal-processing/waste-treatment-and-recycling" class="menu__link">Waste Treatment and Recycling</a></li> </ul></li> <li class="menu__item is-expanded expanded menu-mlid-500"><a href="/capabilities/environmental" class="menu__link">Environmental</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-557"><a href="/capabilities/environmental/hazardous-waste-treatment" class="menu__link">Hazardous Waste Treatment</a></li> <li class="menu__item is-leaf leaf menu-mlid-560"><a href="/capabilities/environmental/waste-characterization-remediation" class="menu__link">Waste Characterization for Remediation</a></li> <li class="menu__item is-leaf leaf menu-mlid-561"><a href="/capabilities/environmental/soil-remediation-washing" class="menu__link">Soil Remediation/Washing</a></li> <li class="menu__item is-leaf last leaf menu-mlid-677"><a href="/capabilities/environmental/waste-characterization" class="menu__link">Waste Characterization</a></li> </ul></li> <li class="menu__item is-expanded expanded menu-mlid-499"><a href="/capabilities/energy-fuel" class="menu__link">Energy/Fuel</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-562"><a href="/capabilities/energy-fuel/fuels-characterization" class="menu__link">Fuels Characterization</a></li> <li class="menu__item is-leaf last leaf menu-mlid-563"><a href="/capabilities/energy-fuel/field-analysis" class="menu__link">Field Analysis</a></li> </ul></li> <li class="menu__item is-leaf last leaf menu-mlid-497"><a href="/capabilities/comminution" class="menu__link">Comminution</a></li> </ul> </nav><!-- /.block --></div></div></div><div class="field field-name-field-capability-category field-type-taxonomy-term-reference field-label-above"><div class="field-label">Capability Category:&nbsp;</div><div class="field-items"><div class="field-item even"><a href="/capabilities/hydrometallurgy-0" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Hydrometallurgy</a></div></div></div><div class="field field-name-field-page-icon field-type-taxonomy-term-reference field-label-above"><div class="field-label">Page Icon:&nbsp;</div><div class="field-items"><div class="field-item even"><a href="/icons/hydrometallurgy" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Hydrometallurgy</a></div></div></div> Mon, 10 Jun 2013 20:14:27 +0000 hazen-research-admin 43 at /capabilities/hydrometallurgy/precipitation <div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even" property="content:encoded"><p>Many hydrometallurgical processes contain one or more precipitation steps. 91ÆÞÓÑ has extensive expertise in developing and piloting precipitation processes.</p> <p>For instance, hydroxide is used to precipitate iron from acid streams, neutralize acid streams for disposal, recover nickel and cobalt hydroxide from sulfate liquors, and remove metals from wastewater. Platinum group metals are also recovered from acidic leach solutions by precipitation.</p> <p>Sulfide is another common compound used in precipitation steps. Hydrogen sulfide is used to recover copper from copper-bearing streams and nickel and cobalt from acid sulfate liquors. Sodium hydrosulfide and calcium sulfide are widely used to remove zinc, copper, lead, silver, and cadmium from waste streams.</p> <p>Cementation is a specialized precipitation process in which a more reactive metal is used to remove a more noble metal from solution. Copper cementation has been used extensively to recover copper. Gold and silver are recovered using zinc dust cementation.</p> </div></div></div><div class="field field-name-field-introduction-copy field-type-text-long field-label-above"><div class="field-label">Introduction Copy:&nbsp;</div><div class="field-items"><div class="field-item even">Precipitation reactions are widely used to recover metal values or to remove impurities from process streams and waste waters. </div></div></div><div class="field field-name-field-main-image field-type-image field-label-above"><div class="field-label">Main Image:&nbsp;</div><div class="field-items"><div class="field-item even"><img typeof="foaf:Image" src="/sites/default/files/dsc_0136ab.jpg" width="3872" height="2592" alt="" /></div></div></div><div class="field field-name-field-contact-reference field-type-blockreference field-label-above"><div class="field-label">Add Contact Reference:&nbsp;</div><div class="field-items"><div class="field-item even"><div id="block-block-7--5" class="block block-block contact-hazen-block odd"> <h4><a href="/contact">Contact 91ÆÞÓÑ</a></h4> <p>Main (303) 279 4501<br /> Fax (303) 278 1528<br /> <a href="/contact">E-mail</a>  /  <a href="http://goo.gl/maps/kF2aK" target="_blank">Directions</a><br /><a href="/contact">Submit RFP</a></p> </div></div></div></div><div class="field field-name-field-service-applications field-type-entityreference field-label-above"><div class="field-label">Service Applications:&nbsp;</div><div class="field-items"><div class="field-item even">Flowsheet Development</div><div class="field-item odd">Laboratory Investigations</div><div class="field-item even">Process Development</div></div></div><div class="field field-name-field-related-capabilities field-type-entityreference field-label-above"><div class="field-label">Related Capabilities:&nbsp;</div><div class="field-items"><div class="field-item even">Process Mineralogy</div><div class="field-item odd">Mineral Beneficiation</div><div class="field-item even">Environmental</div></div></div><div class="field field-name-field-menu-reference field-type-blockreference field-label-above"><div class="field-label">Add Capabilities Menu:&nbsp;</div><div class="field-items"><div class="field-item even"><nav id="block-menu-block-2--5" class="block block-menu-block cap-menu even" role="navigation"> <ul class="menu-block-wrapper menu-block-2 menu-name-menu-capabilities-menu parent-mlid-0 menu-level-1 menu"> <li class="menu__item is-expanded first expanded menu-mlid-505"><a href="/capabilities/analytical-laboratories" class="menu__link">Analytical Laboratories</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-523"><a href="/capabilities/analytical-services/radiochemistry" class="menu__link">Radiochemistry</a></li> <li class="menu__item is-leaf leaf menu-mlid-530"><a href="/capabilities/analytical-services/geologic-materials" class="menu__link">Geologic Materials</a></li> <li class="menu__item is-leaf leaf 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href="/capabilities/process-mineralogy/optical-microscopy" class="menu__link">Optical Microscopy</a></li> <li class="menu__item is-leaf leaf menu-mlid-535"><a href="/capabilities/process-mineralogy/electron-probe-microanalysis" class="menu__link">Electron Probe Microanalysis</a></li> <li class="menu__item is-leaf leaf menu-mlid-536"><a href="/capabilities/process-mineralogy/x-ray-diffraction" class="menu__link">X-Ray Diffraction</a></li> <li class="menu__item is-leaf last leaf menu-mlid-1314"><a href="/capabilities/process-mineralogy/high-resolution-scanning-electron-microscopy-and-microanalysis" class="menu__link">High-Resolution Scanning Electron Microscopy and Microanalysis</a></li> </ul></li> <li class="menu__item is-expanded expanded menu-mlid-503"><a href="/capabilities/mineral-beneficiation" class="menu__link">Mineral Beneficiation</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-537"><a href="/capabilities/mineral-beneficiation/gravity-separation" class="menu__link">Gravity Separation</a></li> <li class="menu__item is-leaf leaf menu-mlid-538"><a href="/capabilities/mineral-beneficiation/froth-flotation" class="menu__link">Froth Flotation</a></li> <li class="menu__item is-leaf leaf menu-mlid-539"><a href="/capabilities/mineral-beneficiation/magnetic-separation" class="menu__link">Magnetic Separation</a></li> <li class="menu__item is-leaf last leaf menu-mlid-540"><a href="/capabilities/mineral-beneficiation/other-beneficiation-methods" class="menu__link">Other Beneficiation Methods</a></li> </ul></li> <li class="menu__item is-expanded expanded menu-mlid-502"><a href="/capabilities/hydrometallurgy" class="menu__link">Hydrometallurgy</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-541"><a href="/capabilities/hydrometallurgy/leaching" class="menu__link">Leaching</a></li> <li class="menu__item is-leaf leaf menu-mlid-542"><a href="/capabilities/hydrometallurgy/high-pressure-leaching" class="menu__link">High-Pressure Leaching</a></li> <li class="menu__item is-leaf leaf menu-mlid-543"><a href="/capabilities/hydrometallurgy/solid-liquid-separation" class="menu__link">Solid-Liquid Separation</a></li> <li class="menu__item is-leaf leaf menu-mlid-544"><a href="/capabilities/hydrometallurgy/precipitation" class="menu__link">Precipitation</a></li> <li class="menu__item is-leaf leaf menu-mlid-545"><a href="/capabilities/hydrometallurgy/solvent-extraction" class="menu__link">Solvent Extraction</a></li> <li class="menu__item is-leaf leaf menu-mlid-546"><a href="/capabilities/hydrometallurgy/adsorption-and-ion-exchange" class="menu__link">Adsorption and Ion Exchange</a></li> <li class="menu__item is-leaf leaf menu-mlid-547"><a href="/capabilities/hydrometallurgy/electrochemistry" class="menu__link">Electrochemistry</a></li> <li class="menu__item is-leaf last leaf menu-mlid-548"><a href="/capabilities/hydrometallurgy/crystallization" class="menu__link">Crystallization</a></li> </ul></li> <li class="menu__item is-expanded expanded menu-mlid-501"><a href="/capabilities/thermal-processing" class="menu__link">Thermal Processing</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-550"><a href="/capabilities/thermal-processing/endothermic-processes" class="menu__link">Endothermic Processes</a></li> <li class="menu__item is-leaf leaf menu-mlid-551"><a href="/capabilities/thermal-processing/pyrometallurgy" class="menu__link">Pyrometallurgy</a></li> <li class="menu__item is-leaf leaf menu-mlid-552"><a href="/capabilities/thermal-processing/materials-processing" class="menu__link">Materials Processing</a></li> <li class="menu__item is-leaf leaf menu-mlid-553"><a href="/capabilities/thermal-processing/thermal-process-development" class="menu__link">Thermal Process Development</a></li> <li class="menu__item is-leaf last leaf menu-mlid-554"><a href="/capabilities/thermal-processing/waste-treatment-and-recycling" class="menu__link">Waste Treatment and Recycling</a></li> </ul></li> <li class="menu__item is-expanded expanded menu-mlid-500"><a href="/capabilities/environmental" class="menu__link">Environmental</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-557"><a href="/capabilities/environmental/hazardous-waste-treatment" class="menu__link">Hazardous Waste Treatment</a></li> <li class="menu__item is-leaf leaf menu-mlid-560"><a href="/capabilities/environmental/waste-characterization-remediation" class="menu__link">Waste Characterization for Remediation</a></li> <li class="menu__item is-leaf leaf menu-mlid-561"><a href="/capabilities/environmental/soil-remediation-washing" class="menu__link">Soil Remediation/Washing</a></li> <li class="menu__item is-leaf last leaf menu-mlid-677"><a href="/capabilities/environmental/waste-characterization" class="menu__link">Waste Characterization</a></li> </ul></li> <li class="menu__item is-expanded expanded menu-mlid-499"><a href="/capabilities/energy-fuel" class="menu__link">Energy/Fuel</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-562"><a href="/capabilities/energy-fuel/fuels-characterization" class="menu__link">Fuels Characterization</a></li> <li class="menu__item is-leaf last leaf menu-mlid-563"><a href="/capabilities/energy-fuel/field-analysis" class="menu__link">Field Analysis</a></li> </ul></li> <li class="menu__item is-leaf last leaf menu-mlid-497"><a href="/capabilities/comminution" class="menu__link">Comminution</a></li> </ul> </nav><!-- /.block --></div></div></div><div class="field field-name-field-capability-category field-type-taxonomy-term-reference field-label-above"><div class="field-label">Capability Category:&nbsp;</div><div class="field-items"><div class="field-item even"><a href="/capabilities/hydrometallurgy-0" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Hydrometallurgy</a></div></div></div><div class="field field-name-field-page-icon field-type-taxonomy-term-reference field-label-above"><div class="field-label">Page Icon:&nbsp;</div><div class="field-items"><div class="field-item even"><a href="/icons/hydrometallurgy" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Hydrometallurgy</a></div></div></div> Mon, 10 Jun 2013 20:13:19 +0000 hazen-research-admin 42 at /capabilities/hydrometallurgy/solid-liquid-separation <div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even" property="content:encoded"><p>A variety of solid-liquid separation options are available, including screening, settling, filtration, and centrifuging, depending on the size and physical characteristics of the solids in the slurry. Solid-liquid separation steps can be quite costly, and 91ÆÞÓÑ's experience with commercial operations can help clients determine the most cost-effective option.</p> <p>Thickeners and clarifiers are used extensively in many processes. 91ÆÞÓÑ can perform standard batch settling tests on slurries to determine preliminary thickener unit areas and underflow densities. Flocculants are screened to determine the dose necessary to achieve rapid settling rates and clear thickener overflow liquors. For applications in which countercurrent decantation (CCD) is required to wash the solids, data can be generated from settling tests to size the CCD circuit.</p> <p>Vacuum filtration and pressure filtration are used in many commercial operations. Standard filtration tests are used to provide preliminary filtration sizing information for either of these filtration options. When required, flocculants are tested to enhance filtration rates.</p> </div></div></div><div class="field field-name-field-introduction-copy field-type-text-long field-label-above"><div class="field-label">Introduction Copy:&nbsp;</div><div class="field-items"><div class="field-item even">In many hydrometallurgical processes, one or more steps are required to separate liquids from solids. </div></div></div><div class="field field-name-field-main-image field-type-image field-label-above"><div class="field-label">Main Image:&nbsp;</div><div class="field-items"><div class="field-item even"><img typeof="foaf:Image" src="/sites/default/files/solid-liquid_sepa.jpg" width="2981" height="2330" alt="" /></div></div></div><div class="field field-name-field-contact-reference field-type-blockreference field-label-above"><div class="field-label">Add Contact Reference:&nbsp;</div><div class="field-items"><div class="field-item even"><div id="block-block-7--6" class="block block-block contact-hazen-block odd"> <h4><a href="/contact">Contact 91ÆÞÓÑ</a></h4> <p>Main (303) 279 4501<br /> Fax (303) 278 1528<br /> <a href="/contact">E-mail</a>  /  <a href="http://goo.gl/maps/kF2aK" target="_blank">Directions</a><br /><a href="/contact">Submit RFP</a></p> </div></div></div></div><div class="field field-name-field-service-applications field-type-entityreference field-label-above"><div class="field-label">Service Applications:&nbsp;</div><div class="field-items"><div class="field-item even">Laboratory Investigations</div><div class="field-item odd">Pilot Plants</div><div class="field-item even">Process Development</div></div></div><div class="field field-name-field-related-capabilities field-type-entityreference field-label-above"><div class="field-label">Related Capabilities:&nbsp;</div><div class="field-items"><div class="field-item even">Process Mineralogy</div><div class="field-item odd">Mineral Beneficiation</div><div class="field-item even">Environmental</div></div></div><div class="field field-name-field-menu-reference field-type-blockreference field-label-above"><div class="field-label">Add Capabilities Menu:&nbsp;</div><div class="field-items"><div class="field-item even"><nav id="block-menu-block-2--6" class="block block-menu-block cap-menu even" role="navigation"> <ul class="menu-block-wrapper menu-block-2 menu-name-menu-capabilities-menu parent-mlid-0 menu-level-1 menu"> <li class="menu__item is-expanded first expanded menu-mlid-505"><a href="/capabilities/analytical-laboratories" class="menu__link">Analytical Laboratories</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-523"><a href="/capabilities/analytical-services/radiochemistry" class="menu__link">Radiochemistry</a></li> <li class="menu__item is-leaf leaf menu-mlid-530"><a href="/capabilities/analytical-services/geologic-materials" class="menu__link">Geologic Materials</a></li> <li class="menu__item is-leaf leaf 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href="/capabilities/process-mineralogy/optical-microscopy" class="menu__link">Optical Microscopy</a></li> <li class="menu__item is-leaf leaf menu-mlid-535"><a href="/capabilities/process-mineralogy/electron-probe-microanalysis" class="menu__link">Electron Probe Microanalysis</a></li> <li class="menu__item is-leaf leaf menu-mlid-536"><a href="/capabilities/process-mineralogy/x-ray-diffraction" class="menu__link">X-Ray Diffraction</a></li> <li class="menu__item is-leaf last leaf menu-mlid-1314"><a href="/capabilities/process-mineralogy/high-resolution-scanning-electron-microscopy-and-microanalysis" class="menu__link">High-Resolution Scanning Electron Microscopy and Microanalysis</a></li> </ul></li> <li class="menu__item is-expanded expanded menu-mlid-503"><a href="/capabilities/mineral-beneficiation" class="menu__link">Mineral Beneficiation</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-537"><a href="/capabilities/mineral-beneficiation/gravity-separation" class="menu__link">Gravity Separation</a></li> <li class="menu__item is-leaf leaf menu-mlid-538"><a href="/capabilities/mineral-beneficiation/froth-flotation" class="menu__link">Froth Flotation</a></li> <li class="menu__item is-leaf leaf menu-mlid-539"><a href="/capabilities/mineral-beneficiation/magnetic-separation" class="menu__link">Magnetic Separation</a></li> <li class="menu__item is-leaf last leaf menu-mlid-540"><a href="/capabilities/mineral-beneficiation/other-beneficiation-methods" class="menu__link">Other Beneficiation Methods</a></li> </ul></li> <li class="menu__item is-expanded expanded menu-mlid-502"><a href="/capabilities/hydrometallurgy" class="menu__link">Hydrometallurgy</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-541"><a href="/capabilities/hydrometallurgy/leaching" class="menu__link">Leaching</a></li> <li class="menu__item is-leaf leaf menu-mlid-542"><a href="/capabilities/hydrometallurgy/high-pressure-leaching" class="menu__link">High-Pressure Leaching</a></li> <li class="menu__item is-leaf leaf menu-mlid-543"><a href="/capabilities/hydrometallurgy/solid-liquid-separation" class="menu__link">Solid-Liquid Separation</a></li> <li class="menu__item is-leaf leaf menu-mlid-544"><a href="/capabilities/hydrometallurgy/precipitation" class="menu__link">Precipitation</a></li> <li class="menu__item is-leaf leaf menu-mlid-545"><a href="/capabilities/hydrometallurgy/solvent-extraction" class="menu__link">Solvent Extraction</a></li> <li class="menu__item is-leaf leaf menu-mlid-546"><a href="/capabilities/hydrometallurgy/adsorption-and-ion-exchange" class="menu__link">Adsorption and Ion Exchange</a></li> <li class="menu__item is-leaf leaf menu-mlid-547"><a href="/capabilities/hydrometallurgy/electrochemistry" class="menu__link">Electrochemistry</a></li> <li class="menu__item is-leaf last leaf menu-mlid-548"><a href="/capabilities/hydrometallurgy/crystallization" class="menu__link">Crystallization</a></li> </ul></li> <li class="menu__item is-expanded expanded menu-mlid-501"><a href="/capabilities/thermal-processing" class="menu__link">Thermal Processing</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-550"><a href="/capabilities/thermal-processing/endothermic-processes" class="menu__link">Endothermic Processes</a></li> <li class="menu__item is-leaf leaf menu-mlid-551"><a href="/capabilities/thermal-processing/pyrometallurgy" class="menu__link">Pyrometallurgy</a></li> <li class="menu__item is-leaf leaf menu-mlid-552"><a href="/capabilities/thermal-processing/materials-processing" class="menu__link">Materials Processing</a></li> <li class="menu__item is-leaf leaf menu-mlid-553"><a href="/capabilities/thermal-processing/thermal-process-development" class="menu__link">Thermal Process Development</a></li> <li class="menu__item is-leaf last leaf menu-mlid-554"><a href="/capabilities/thermal-processing/waste-treatment-and-recycling" class="menu__link">Waste Treatment and Recycling</a></li> </ul></li> <li class="menu__item is-expanded expanded menu-mlid-500"><a href="/capabilities/environmental" class="menu__link">Environmental</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-557"><a href="/capabilities/environmental/hazardous-waste-treatment" class="menu__link">Hazardous Waste Treatment</a></li> <li class="menu__item is-leaf leaf menu-mlid-560"><a href="/capabilities/environmental/waste-characterization-remediation" class="menu__link">Waste Characterization for Remediation</a></li> <li class="menu__item is-leaf leaf menu-mlid-561"><a href="/capabilities/environmental/soil-remediation-washing" class="menu__link">Soil Remediation/Washing</a></li> <li class="menu__item is-leaf last leaf menu-mlid-677"><a href="/capabilities/environmental/waste-characterization" class="menu__link">Waste Characterization</a></li> </ul></li> <li class="menu__item is-expanded expanded menu-mlid-499"><a href="/capabilities/energy-fuel" class="menu__link">Energy/Fuel</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-562"><a href="/capabilities/energy-fuel/fuels-characterization" class="menu__link">Fuels Characterization</a></li> <li class="menu__item is-leaf last leaf menu-mlid-563"><a href="/capabilities/energy-fuel/field-analysis" class="menu__link">Field Analysis</a></li> </ul></li> <li class="menu__item is-leaf last leaf menu-mlid-497"><a href="/capabilities/comminution" class="menu__link">Comminution</a></li> </ul> </nav><!-- /.block --></div></div></div><div class="field field-name-field-capability-category field-type-taxonomy-term-reference field-label-above"><div class="field-label">Capability Category:&nbsp;</div><div class="field-items"><div class="field-item even"><a href="/capabilities/hydrometallurgy-0" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Hydrometallurgy</a></div></div></div><div class="field field-name-field-page-icon field-type-taxonomy-term-reference field-label-above"><div class="field-label">Page Icon:&nbsp;</div><div class="field-items"><div class="field-item even"><a href="/icons/hydrometallurgy" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Hydrometallurgy</a></div></div></div> Mon, 10 Jun 2013 19:39:54 +0000 hazen-research-admin 41 at /capabilities/hydrometallurgy/high-pressure-leaching <div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even" property="content:encoded"><p>Examples of this include pressure oxidation (POX) of sulfide ores and concentrates, high-pressure acid leaching (HPAL) of nickel laterites, and wet-air oxidation of organics. Both batch and continuous reactors are available at 91ÆÞÓÑ for developing high-temperature processes.</p> <p>91ÆÞÓÑ's engineers have assisted clients in developing POX processes for refractory gold ores, metals recovery from catalysts, and sulfide concentrates of copper, nickel, zinc, and molybdenum. 91ÆÞÓÑ has successfully scaled up batch experiments to <a href="/services/pilot-plants">pilot operations</a>. A number of commercial plants throughout the world have been designed, built, and successfully operated based on pilot plant data generated at 91ÆÞÓÑ.</p> <p>Processes utilizing HPAL of nickel laterites using sulfuric acid have been piloted at 91ÆÞÓÑ. These processes involve temperatures up to 250°C at low pH, with the goal of minimizing acid use while maximizing nickel and cobalt extractions.</p> </div></div></div><div class="field field-name-field-introduction-copy field-type-text-long field-label-above"><div class="field-label">Introduction Copy:&nbsp;</div><div class="field-items"><div class="field-item even">Some leaching operations require elevated temperatures and pressures to achieve the desired extraction.</div></div></div><div class="field field-name-field-main-image field-type-image field-label-above"><div class="field-label">Main Image:&nbsp;</div><div class="field-items"><div class="field-item even"><img typeof="foaf:Image" src="/sites/default/files/homehigh_pressure_leaching.jpg" width="3222" height="2396" alt="" /></div></div></div><div class="field field-name-field-contact-reference field-type-blockreference field-label-above"><div class="field-label">Add Contact Reference:&nbsp;</div><div class="field-items"><div class="field-item even"><div id="block-block-7--7" class="block block-block contact-hazen-block odd"> <h4><a href="/contact">Contact 91ÆÞÓÑ</a></h4> <p>Main (303) 279 4501<br /> Fax (303) 278 1528<br /> <a href="/contact">E-mail</a>  /  <a href="http://goo.gl/maps/kF2aK" target="_blank">Directions</a><br /><a href="/contact">Submit RFP</a></p> </div></div></div></div><div class="field field-name-field-service-applications field-type-entityreference field-label-above"><div class="field-label">Service Applications:&nbsp;</div><div class="field-items"><div class="field-item even">Laboratory Investigations</div><div class="field-item odd">Pilot Plants</div><div class="field-item even">Process Development</div></div></div><div class="field field-name-field-related-capabilities field-type-entityreference field-label-above"><div class="field-label">Related Capabilities:&nbsp;</div><div class="field-items"><div class="field-item even">Analytical Laboratories</div><div class="field-item odd">Process Mineralogy</div><div class="field-item even">Mineral Beneficiation</div></div></div><div class="field field-name-field-menu-reference field-type-blockreference field-label-above"><div class="field-label">Add Capabilities Menu:&nbsp;</div><div class="field-items"><div class="field-item even"><nav id="block-menu-block-2--7" class="block block-menu-block cap-menu even" role="navigation"> <ul class="menu-block-wrapper menu-block-2 menu-name-menu-capabilities-menu parent-mlid-0 menu-level-1 menu"> <li class="menu__item is-expanded first expanded menu-mlid-505"><a href="/capabilities/analytical-laboratories" class="menu__link">Analytical Laboratories</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-523"><a href="/capabilities/analytical-services/radiochemistry" class="menu__link">Radiochemistry</a></li> <li class="menu__item is-leaf leaf menu-mlid-530"><a href="/capabilities/analytical-services/geologic-materials" class="menu__link">Geologic Materials</a></li> <li class="menu__item is-leaf leaf menu-mlid-529"><a href="/capabilities/analytical-services/precious-metals-fire-assaying" class="menu__link">Precious Metals/Fire Assaying</a></li> <li class="menu__item is-leaf leaf menu-mlid-531"><a href="/capabilities/analytical-services/fuels" class="menu__link">Fuels</a></li> <li class="menu__item is-leaf leaf menu-mlid-532"><a href="/capabilities/analytical-services/sample-preparation" class="menu__link">Sample Preparation</a></li> <li class="menu__item is-leaf last leaf menu-mlid-533"><a href="/capabilities/analytical-services/quality-control" class="menu__link">Quality Control</a></li> </ul></li> <li class="menu__item is-expanded expanded menu-mlid-504"><a href="/capabilities/process-mineralogy" class="menu__link">Process Mineralogy</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-528"><a href="/capabilities/process-mineralogy/qemscan" class="menu__link">QEMSCAN</a></li> <li class="menu__item is-leaf leaf menu-mlid-534"><a href="/capabilities/process-mineralogy/optical-microscopy" class="menu__link">Optical Microscopy</a></li> <li class="menu__item is-leaf leaf menu-mlid-535"><a href="/capabilities/process-mineralogy/electron-probe-microanalysis" class="menu__link">Electron Probe Microanalysis</a></li> <li class="menu__item is-leaf leaf menu-mlid-536"><a href="/capabilities/process-mineralogy/x-ray-diffraction" class="menu__link">X-Ray Diffraction</a></li> <li class="menu__item is-leaf last leaf menu-mlid-1314"><a href="/capabilities/process-mineralogy/high-resolution-scanning-electron-microscopy-and-microanalysis" class="menu__link">High-Resolution Scanning Electron Microscopy and Microanalysis</a></li> </ul></li> <li class="menu__item is-expanded expanded menu-mlid-503"><a href="/capabilities/mineral-beneficiation" class="menu__link">Mineral Beneficiation</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-537"><a href="/capabilities/mineral-beneficiation/gravity-separation" class="menu__link">Gravity Separation</a></li> <li class="menu__item is-leaf leaf menu-mlid-538"><a href="/capabilities/mineral-beneficiation/froth-flotation" class="menu__link">Froth Flotation</a></li> <li class="menu__item is-leaf leaf menu-mlid-539"><a href="/capabilities/mineral-beneficiation/magnetic-separation" class="menu__link">Magnetic Separation</a></li> <li class="menu__item is-leaf last leaf menu-mlid-540"><a href="/capabilities/mineral-beneficiation/other-beneficiation-methods" class="menu__link">Other Beneficiation Methods</a></li> </ul></li> <li class="menu__item is-expanded expanded menu-mlid-502"><a href="/capabilities/hydrometallurgy" class="menu__link">Hydrometallurgy</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-541"><a href="/capabilities/hydrometallurgy/leaching" class="menu__link">Leaching</a></li> <li class="menu__item is-leaf leaf menu-mlid-542"><a href="/capabilities/hydrometallurgy/high-pressure-leaching" class="menu__link">High-Pressure Leaching</a></li> <li class="menu__item is-leaf leaf menu-mlid-543"><a href="/capabilities/hydrometallurgy/solid-liquid-separation" class="menu__link">Solid-Liquid Separation</a></li> <li class="menu__item is-leaf leaf menu-mlid-544"><a href="/capabilities/hydrometallurgy/precipitation" class="menu__link">Precipitation</a></li> <li class="menu__item is-leaf leaf menu-mlid-545"><a href="/capabilities/hydrometallurgy/solvent-extraction" class="menu__link">Solvent Extraction</a></li> <li class="menu__item is-leaf leaf menu-mlid-546"><a href="/capabilities/hydrometallurgy/adsorption-and-ion-exchange" class="menu__link">Adsorption and Ion Exchange</a></li> <li class="menu__item is-leaf leaf menu-mlid-547"><a href="/capabilities/hydrometallurgy/electrochemistry" class="menu__link">Electrochemistry</a></li> <li class="menu__item is-leaf last leaf menu-mlid-548"><a href="/capabilities/hydrometallurgy/crystallization" class="menu__link">Crystallization</a></li> </ul></li> <li class="menu__item is-expanded expanded menu-mlid-501"><a href="/capabilities/thermal-processing" class="menu__link">Thermal Processing</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-550"><a href="/capabilities/thermal-processing/endothermic-processes" class="menu__link">Endothermic Processes</a></li> <li class="menu__item is-leaf leaf menu-mlid-551"><a href="/capabilities/thermal-processing/pyrometallurgy" class="menu__link">Pyrometallurgy</a></li> <li class="menu__item is-leaf leaf menu-mlid-552"><a href="/capabilities/thermal-processing/materials-processing" class="menu__link">Materials Processing</a></li> <li class="menu__item is-leaf leaf menu-mlid-553"><a href="/capabilities/thermal-processing/thermal-process-development" class="menu__link">Thermal Process Development</a></li> <li class="menu__item is-leaf last leaf menu-mlid-554"><a href="/capabilities/thermal-processing/waste-treatment-and-recycling" class="menu__link">Waste Treatment and Recycling</a></li> </ul></li> <li class="menu__item is-expanded expanded menu-mlid-500"><a href="/capabilities/environmental" class="menu__link">Environmental</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-557"><a href="/capabilities/environmental/hazardous-waste-treatment" class="menu__link">Hazardous Waste Treatment</a></li> <li class="menu__item is-leaf leaf menu-mlid-560"><a href="/capabilities/environmental/waste-characterization-remediation" class="menu__link">Waste Characterization for Remediation</a></li> <li class="menu__item is-leaf leaf menu-mlid-561"><a href="/capabilities/environmental/soil-remediation-washing" class="menu__link">Soil Remediation/Washing</a></li> <li class="menu__item is-leaf last leaf menu-mlid-677"><a href="/capabilities/environmental/waste-characterization" class="menu__link">Waste Characterization</a></li> </ul></li> <li class="menu__item is-expanded expanded menu-mlid-499"><a href="/capabilities/energy-fuel" class="menu__link">Energy/Fuel</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-562"><a href="/capabilities/energy-fuel/fuels-characterization" class="menu__link">Fuels Characterization</a></li> <li class="menu__item is-leaf last leaf menu-mlid-563"><a href="/capabilities/energy-fuel/field-analysis" class="menu__link">Field Analysis</a></li> </ul></li> <li class="menu__item is-leaf last leaf menu-mlid-497"><a href="/capabilities/comminution" class="menu__link">Comminution</a></li> </ul> </nav><!-- /.block --></div></div></div><div class="field field-name-field-capability-category field-type-taxonomy-term-reference field-label-above"><div class="field-label">Capability Category:&nbsp;</div><div class="field-items"><div class="field-item even"><a href="/capabilities/hydrometallurgy-0" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Hydrometallurgy</a></div></div></div><div class="field field-name-field-page-icon field-type-taxonomy-term-reference field-label-above"><div class="field-label">Page Icon:&nbsp;</div><div class="field-items"><div class="field-item even"><a href="/icons/hydrometallurgy" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Hydrometallurgy</a></div></div></div> Mon, 10 Jun 2013 19:38:50 +0000 hazen-research-admin 40 at /capabilities/hydrometallurgy/leaching <div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even" property="content:encoded"><p>The leaching process may employ one of a variety of chemicals such as dilute sulfuric acid, dilute aqueous cyanide, or other reagents. Methods for contacting ore and solution include agitating ground solids and solution (slurry) in open tanks, agitating slurry at a high temperature in a pressure vessel, or percolating solution through crushed ore that has been piled in a heap or vat and collecting the solution that issues from the bottom.</p> <p>High-temperature and pressure leach processes are performed in autoclaves. 91ÆÞÓÑ's batch laboratory autoclaves and continuous pilot autoclaves have been operated under oxidizing, acidic, or alkaline conditions (see <a href="/capabilities/hydrometallurgy/high-pressure-leaching">High Pressure Leaching</a>). In other processes, oxidizing or reducing gases, such as air, oxygen, or sulfur dioxide, are used, taking into account the gas-liquid contact requirements.</p> <p>Some leaching systems are complex and are difficult to simulate in single-stage laboratory experiments. Such cases require special equipment and procedures to produce accurate data to predict how the system will perform in a large-scale commercial operation. For example, in the recovery of gold by cyanidation using the carbon-in-leach (CIL) process, the ground ore is suspended in a cyanide solution and is fed to a series of tanks. The slurry cascades from one agitated tank to the next, contacting activated carbon in each tank where the gold is adsorbed. Each overflow stream passes through a screened funnel into the subsequent vessel to collect the carbon from the stream. The collected carbon is manually transferred back to the preceding vessel (or other parts of the system) to realistically simulate the countercurrent flow of ore and carbon until the desired gold content is attained.</p> <p>Leaching processes are also used to chemically remove contaminants from soils or other solids. Examples include removing mercury, organics, and other contaminants. 91ÆÞÓÑ has experience in a wide range of chemical <a href="/capabilities/environmental/soil-washing">soil washing</a> projects for clients.</p> </div></div></div><div class="field field-name-field-introduction-copy field-type-text-long field-label-above"><div class="field-label">Introduction Copy:&nbsp;</div><div class="field-items"><div class="field-item even">Most hydrometallurgical processes include one or more leaching steps to initially dissolve the metal of interest or to remove unwanted impurities. </div></div></div><div class="field field-name-field-main-image field-type-image field-label-above"><div class="field-label">Main Image:&nbsp;</div><div class="field-items"><div class="field-item even"><img typeof="foaf:Image" src="/sites/default/files/dsc_6103.jpg" width="3981" height="2707" alt="" /></div></div></div><div class="field field-name-field-contact-reference field-type-blockreference field-label-above"><div class="field-label">Add Contact Reference:&nbsp;</div><div class="field-items"><div class="field-item even"><div id="block-block-7--8" class="block block-block contact-hazen-block odd"> <h4><a href="/contact">Contact 91ÆÞÓÑ</a></h4> <p>Main (303) 279 4501<br /> Fax (303) 278 1528<br /> <a href="/contact">E-mail</a>  /  <a href="http://goo.gl/maps/kF2aK" target="_blank">Directions</a><br /><a href="/contact">Submit RFP</a></p> </div></div></div></div><div class="field field-name-field-service-applications field-type-entityreference field-label-above"><div class="field-label">Service Applications:&nbsp;</div><div class="field-items"><div class="field-item even">Flowsheet Development</div><div class="field-item odd">Laboratory Investigations</div><div class="field-item even">Pilot Plants</div></div></div><div class="field field-name-field-related-capabilities field-type-entityreference field-label-above"><div class="field-label">Related Capabilities:&nbsp;</div><div class="field-items"><div class="field-item even">Process Mineralogy</div><div class="field-item odd">Mineral Beneficiation</div><div class="field-item even">Thermal Processing</div></div></div><div class="field field-name-field-menu-reference field-type-blockreference field-label-above"><div class="field-label">Add Capabilities Menu:&nbsp;</div><div class="field-items"><div class="field-item even"><nav id="block-menu-block-2--8" class="block block-menu-block cap-menu even" role="navigation"> <ul class="menu-block-wrapper menu-block-2 menu-name-menu-capabilities-menu parent-mlid-0 menu-level-1 menu"> <li class="menu__item is-expanded first expanded menu-mlid-505"><a href="/capabilities/analytical-laboratories" class="menu__link">Analytical Laboratories</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-523"><a href="/capabilities/analytical-services/radiochemistry" class="menu__link">Radiochemistry</a></li> <li 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first leaf menu-mlid-528"><a href="/capabilities/process-mineralogy/qemscan" class="menu__link">QEMSCAN</a></li> <li class="menu__item is-leaf leaf menu-mlid-534"><a href="/capabilities/process-mineralogy/optical-microscopy" class="menu__link">Optical Microscopy</a></li> <li class="menu__item is-leaf leaf menu-mlid-535"><a href="/capabilities/process-mineralogy/electron-probe-microanalysis" class="menu__link">Electron Probe Microanalysis</a></li> <li class="menu__item is-leaf leaf menu-mlid-536"><a href="/capabilities/process-mineralogy/x-ray-diffraction" class="menu__link">X-Ray Diffraction</a></li> <li class="menu__item is-leaf last leaf menu-mlid-1314"><a href="/capabilities/process-mineralogy/high-resolution-scanning-electron-microscopy-and-microanalysis" class="menu__link">High-Resolution Scanning Electron Microscopy and Microanalysis</a></li> </ul></li> <li class="menu__item is-expanded expanded menu-mlid-503"><a href="/capabilities/mineral-beneficiation" class="menu__link">Mineral Beneficiation</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-537"><a href="/capabilities/mineral-beneficiation/gravity-separation" class="menu__link">Gravity Separation</a></li> <li class="menu__item is-leaf leaf menu-mlid-538"><a href="/capabilities/mineral-beneficiation/froth-flotation" class="menu__link">Froth Flotation</a></li> <li class="menu__item is-leaf leaf menu-mlid-539"><a href="/capabilities/mineral-beneficiation/magnetic-separation" class="menu__link">Magnetic Separation</a></li> <li class="menu__item is-leaf last leaf menu-mlid-540"><a href="/capabilities/mineral-beneficiation/other-beneficiation-methods" class="menu__link">Other Beneficiation Methods</a></li> </ul></li> <li class="menu__item is-expanded expanded menu-mlid-502"><a href="/capabilities/hydrometallurgy" class="menu__link">Hydrometallurgy</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-541"><a href="/capabilities/hydrometallurgy/leaching" class="menu__link">Leaching</a></li> <li class="menu__item is-leaf leaf menu-mlid-542"><a href="/capabilities/hydrometallurgy/high-pressure-leaching" class="menu__link">High-Pressure Leaching</a></li> <li class="menu__item is-leaf leaf menu-mlid-543"><a href="/capabilities/hydrometallurgy/solid-liquid-separation" class="menu__link">Solid-Liquid Separation</a></li> <li class="menu__item is-leaf leaf menu-mlid-544"><a href="/capabilities/hydrometallurgy/precipitation" class="menu__link">Precipitation</a></li> <li class="menu__item is-leaf leaf menu-mlid-545"><a href="/capabilities/hydrometallurgy/solvent-extraction" class="menu__link">Solvent Extraction</a></li> <li class="menu__item is-leaf leaf menu-mlid-546"><a href="/capabilities/hydrometallurgy/adsorption-and-ion-exchange" class="menu__link">Adsorption and Ion Exchange</a></li> <li class="menu__item is-leaf leaf menu-mlid-547"><a href="/capabilities/hydrometallurgy/electrochemistry" class="menu__link">Electrochemistry</a></li> <li class="menu__item is-leaf last leaf menu-mlid-548"><a href="/capabilities/hydrometallurgy/crystallization" class="menu__link">Crystallization</a></li> </ul></li> <li class="menu__item is-expanded expanded menu-mlid-501"><a href="/capabilities/thermal-processing" class="menu__link">Thermal Processing</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-550"><a href="/capabilities/thermal-processing/endothermic-processes" class="menu__link">Endothermic Processes</a></li> <li class="menu__item is-leaf leaf menu-mlid-551"><a href="/capabilities/thermal-processing/pyrometallurgy" class="menu__link">Pyrometallurgy</a></li> <li class="menu__item is-leaf leaf menu-mlid-552"><a href="/capabilities/thermal-processing/materials-processing" class="menu__link">Materials Processing</a></li> <li class="menu__item is-leaf leaf menu-mlid-553"><a href="/capabilities/thermal-processing/thermal-process-development" class="menu__link">Thermal Process Development</a></li> <li class="menu__item is-leaf last leaf menu-mlid-554"><a href="/capabilities/thermal-processing/waste-treatment-and-recycling" class="menu__link">Waste Treatment and Recycling</a></li> </ul></li> <li class="menu__item is-expanded expanded menu-mlid-500"><a href="/capabilities/environmental" class="menu__link">Environmental</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-557"><a href="/capabilities/environmental/hazardous-waste-treatment" class="menu__link">Hazardous Waste Treatment</a></li> <li class="menu__item is-leaf leaf menu-mlid-560"><a href="/capabilities/environmental/waste-characterization-remediation" class="menu__link">Waste Characterization for Remediation</a></li> <li class="menu__item is-leaf leaf menu-mlid-561"><a href="/capabilities/environmental/soil-remediation-washing" class="menu__link">Soil Remediation/Washing</a></li> <li class="menu__item is-leaf last leaf menu-mlid-677"><a href="/capabilities/environmental/waste-characterization" class="menu__link">Waste Characterization</a></li> </ul></li> <li class="menu__item is-expanded expanded menu-mlid-499"><a href="/capabilities/energy-fuel" class="menu__link">Energy/Fuel</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-562"><a href="/capabilities/energy-fuel/fuels-characterization" class="menu__link">Fuels Characterization</a></li> <li class="menu__item is-leaf last leaf menu-mlid-563"><a href="/capabilities/energy-fuel/field-analysis" class="menu__link">Field Analysis</a></li> </ul></li> <li class="menu__item is-leaf last leaf menu-mlid-497"><a href="/capabilities/comminution" class="menu__link">Comminution</a></li> </ul> </nav><!-- /.block --></div></div></div><div class="field field-name-field-capability-category field-type-taxonomy-term-reference field-label-above"><div class="field-label">Capability Category:&nbsp;</div><div class="field-items"><div class="field-item even"><a href="/capabilities/hydrometallurgy-0" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Hydrometallurgy</a></div></div></div><div class="field field-name-field-page-icon field-type-taxonomy-term-reference field-label-above"><div class="field-label">Page Icon:&nbsp;</div><div class="field-items"><div class="field-item even"><a href="/icons/hydrometallurgy" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Hydrometallurgy</a></div></div></div> Mon, 10 Jun 2013 19:37:37 +0000 hazen-research-admin 39 at /capabilities/hydrometallurgy <div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even" property="content:encoded"><p>Our beginning and early growth more than 50 years ago were based largely on our skill and experience in hydrometallurgy. The technical staff at 91ÆÞÓÑ has completed thousands of hydrometallurgical projects for clients, recovering metals from ores and waste streams (see <a href="/capabilities/environmental">Environmental Services</a>) and producing inorganic chemicals.</p> <p>Due to variations in ores and other feedstocks, different leaching, separation, and purification operations need to be evaluated for each application, 91ÆÞÓÑ's mineralogical expertise (see <a href="/capabilities/process-mineralogy">Process Mineralogy</a>) is used extensively to characterize feed materials and product solids in developing processes for our clients. The process must not only take into account the extraction and purification of the product, but also needs to consider environmental requirements, effluent treatment, and reagent recycling. 91ÆÞÓÑ's engineers work with clients to develop a cost-effective process flowsheet that is specific to their situation.</p> <p>In many instances, hydrometallurgical processes are coupled with physical separation steps (see <a href="/capabilities/mineral-benefication">Mineral Beneficiation</a>) and comminution (see <a href="/capabilities/comminution">Comminution</a>) to prepare the feed. In other cases, the feed is oxidized or reduced by thermal processing (see <a href="/capabilities/thermal-processing">Thermal Processing</a>) before further hydrometallurgical processing.</p> </div></div></div><div class="field field-name-field-introduction-copy field-type-text-long field-label-above"><div class="field-label">Introduction Copy:&nbsp;</div><div class="field-items"><div class="field-item even">For the recovery and purification of many metals and other chemical products, hydrometallurgical processing provides a cost-effective option. </div></div></div><div class="field field-name-field-main-image field-type-image field-label-above"><div class="field-label">Main Image:&nbsp;</div><div class="field-items"><div class="field-item even"><img typeof="foaf:Image" src="/sites/default/files/default_images/placeholder.png" alt="" /></div></div></div><div class="field field-name-field-contact-reference field-type-blockreference field-label-above"><div class="field-label">Add Contact Reference:&nbsp;</div><div class="field-items"><div class="field-item even"><div id="block-block-7--9" class="block block-block contact-hazen-block odd"> <h4><a href="/contact">Contact 91ÆÞÓÑ</a></h4> <p>Main (303) 279 4501<br /> Fax (303) 278 1528<br /> <a href="/contact">E-mail</a>  /  <a href="http://goo.gl/maps/kF2aK" target="_blank">Directions</a><br /><a href="/contact">Submit RFP</a></p> </div></div></div></div><div class="field field-name-field-related-capabilities field-type-entityreference field-label-above"><div class="field-label">Related Capabilities:&nbsp;</div><div class="field-items"><div class="field-item even">Leaching</div><div class="field-item odd">High-Pressure Leaching</div><div class="field-item even">Solid-Liquid Separation</div><div class="field-item odd">Precipitation</div><div class="field-item even">Solvent Extraction</div><div class="field-item odd">Adsorption and Ion Exchange</div><div class="field-item even">Electrochemistry</div><div class="field-item odd">Crystallization</div></div></div><div class="field field-name-field-menu-reference field-type-blockreference field-label-above"><div class="field-label">Add Capabilities Menu:&nbsp;</div><div class="field-items"><div class="field-item even"><nav id="block-menu-block-2--9" class="block block-menu-block cap-menu even" role="navigation"> <ul class="menu-block-wrapper menu-block-2 menu-name-menu-capabilities-menu parent-mlid-0 menu-level-1 menu"> <li class="menu__item is-expanded first expanded menu-mlid-505"><a href="/capabilities/analytical-laboratories" class="menu__link">Analytical Laboratories</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-523"><a href="/capabilities/analytical-services/radiochemistry" class="menu__link">Radiochemistry</a></li> <li class="menu__item is-leaf leaf menu-mlid-530"><a href="/capabilities/analytical-services/geologic-materials" class="menu__link">Geologic Materials</a></li> <li class="menu__item is-leaf leaf menu-mlid-529"><a href="/capabilities/analytical-services/precious-metals-fire-assaying" class="menu__link">Precious Metals/Fire Assaying</a></li> <li class="menu__item is-leaf leaf menu-mlid-531"><a href="/capabilities/analytical-services/fuels" class="menu__link">Fuels</a></li> <li class="menu__item is-leaf leaf menu-mlid-532"><a href="/capabilities/analytical-services/sample-preparation" class="menu__link">Sample Preparation</a></li> <li class="menu__item is-leaf last leaf menu-mlid-533"><a href="/capabilities/analytical-services/quality-control" class="menu__link">Quality Control</a></li> </ul></li> <li class="menu__item is-expanded expanded menu-mlid-504"><a href="/capabilities/process-mineralogy" class="menu__link">Process Mineralogy</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-528"><a href="/capabilities/process-mineralogy/qemscan" class="menu__link">QEMSCAN</a></li> <li class="menu__item is-leaf leaf menu-mlid-534"><a href="/capabilities/process-mineralogy/optical-microscopy" class="menu__link">Optical Microscopy</a></li> <li class="menu__item is-leaf leaf menu-mlid-535"><a href="/capabilities/process-mineralogy/electron-probe-microanalysis" class="menu__link">Electron Probe Microanalysis</a></li> <li class="menu__item is-leaf leaf menu-mlid-536"><a href="/capabilities/process-mineralogy/x-ray-diffraction" class="menu__link">X-Ray Diffraction</a></li> <li class="menu__item is-leaf last leaf menu-mlid-1314"><a href="/capabilities/process-mineralogy/high-resolution-scanning-electron-microscopy-and-microanalysis" class="menu__link">High-Resolution Scanning Electron Microscopy and Microanalysis</a></li> </ul></li> <li class="menu__item is-expanded expanded menu-mlid-503"><a href="/capabilities/mineral-beneficiation" class="menu__link">Mineral Beneficiation</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-537"><a href="/capabilities/mineral-beneficiation/gravity-separation" class="menu__link">Gravity Separation</a></li> <li class="menu__item is-leaf leaf menu-mlid-538"><a href="/capabilities/mineral-beneficiation/froth-flotation" class="menu__link">Froth Flotation</a></li> <li class="menu__item is-leaf leaf menu-mlid-539"><a href="/capabilities/mineral-beneficiation/magnetic-separation" class="menu__link">Magnetic Separation</a></li> <li class="menu__item is-leaf last leaf menu-mlid-540"><a href="/capabilities/mineral-beneficiation/other-beneficiation-methods" class="menu__link">Other Beneficiation Methods</a></li> </ul></li> <li class="menu__item is-expanded expanded menu-mlid-502"><a href="/capabilities/hydrometallurgy" class="menu__link">Hydrometallurgy</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-541"><a href="/capabilities/hydrometallurgy/leaching" class="menu__link">Leaching</a></li> <li class="menu__item is-leaf leaf menu-mlid-542"><a href="/capabilities/hydrometallurgy/high-pressure-leaching" class="menu__link">High-Pressure Leaching</a></li> <li class="menu__item is-leaf leaf menu-mlid-543"><a href="/capabilities/hydrometallurgy/solid-liquid-separation" class="menu__link">Solid-Liquid Separation</a></li> <li class="menu__item is-leaf leaf menu-mlid-544"><a href="/capabilities/hydrometallurgy/precipitation" class="menu__link">Precipitation</a></li> <li class="menu__item is-leaf leaf menu-mlid-545"><a href="/capabilities/hydrometallurgy/solvent-extraction" class="menu__link">Solvent Extraction</a></li> <li class="menu__item is-leaf leaf menu-mlid-546"><a href="/capabilities/hydrometallurgy/adsorption-and-ion-exchange" class="menu__link">Adsorption and Ion Exchange</a></li> <li class="menu__item is-leaf leaf menu-mlid-547"><a href="/capabilities/hydrometallurgy/electrochemistry" class="menu__link">Electrochemistry</a></li> <li class="menu__item is-leaf last leaf menu-mlid-548"><a href="/capabilities/hydrometallurgy/crystallization" class="menu__link">Crystallization</a></li> </ul></li> <li class="menu__item is-expanded expanded menu-mlid-501"><a href="/capabilities/thermal-processing" class="menu__link">Thermal Processing</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-550"><a href="/capabilities/thermal-processing/endothermic-processes" class="menu__link">Endothermic Processes</a></li> <li class="menu__item is-leaf leaf menu-mlid-551"><a href="/capabilities/thermal-processing/pyrometallurgy" class="menu__link">Pyrometallurgy</a></li> <li class="menu__item is-leaf leaf menu-mlid-552"><a href="/capabilities/thermal-processing/materials-processing" class="menu__link">Materials Processing</a></li> <li class="menu__item is-leaf leaf menu-mlid-553"><a href="/capabilities/thermal-processing/thermal-process-development" class="menu__link">Thermal Process Development</a></li> <li class="menu__item is-leaf last leaf menu-mlid-554"><a href="/capabilities/thermal-processing/waste-treatment-and-recycling" class="menu__link">Waste Treatment and Recycling</a></li> </ul></li> <li class="menu__item is-expanded expanded menu-mlid-500"><a href="/capabilities/environmental" class="menu__link">Environmental</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-557"><a href="/capabilities/environmental/hazardous-waste-treatment" class="menu__link">Hazardous Waste Treatment</a></li> <li class="menu__item is-leaf leaf menu-mlid-560"><a href="/capabilities/environmental/waste-characterization-remediation" class="menu__link">Waste Characterization for Remediation</a></li> <li class="menu__item is-leaf leaf menu-mlid-561"><a href="/capabilities/environmental/soil-remediation-washing" class="menu__link">Soil Remediation/Washing</a></li> <li class="menu__item is-leaf last leaf menu-mlid-677"><a href="/capabilities/environmental/waste-characterization" class="menu__link">Waste Characterization</a></li> </ul></li> <li class="menu__item is-expanded expanded menu-mlid-499"><a href="/capabilities/energy-fuel" class="menu__link">Energy/Fuel</a><ul class="expanded-child"><li class="menu__item is-leaf first leaf menu-mlid-562"><a href="/capabilities/energy-fuel/fuels-characterization" class="menu__link">Fuels Characterization</a></li> <li class="menu__item is-leaf last leaf menu-mlid-563"><a href="/capabilities/energy-fuel/field-analysis" class="menu__link">Field Analysis</a></li> </ul></li> <li class="menu__item is-leaf last leaf menu-mlid-497"><a href="/capabilities/comminution" class="menu__link">Comminution</a></li> </ul> </nav><!-- /.block --></div></div></div><div class="field field-name-field-capability-category field-type-taxonomy-term-reference field-label-above"><div class="field-label">Capability Category:&nbsp;</div><div class="field-items"><div class="field-item even"><a href="/capabilities/hydrometallurgy-0" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Hydrometallurgy</a></div></div></div><div class="field field-name-field-page-icon field-type-taxonomy-term-reference field-label-above"><div class="field-label">Page Icon:&nbsp;</div><div class="field-items"><div class="field-item even"><a href="/icons/hydrometallurgy" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Hydrometallurgy</a></div></div></div><div class="field-collection-container clearfix"><div class="field field-name-field-content-image field-type-field-collection field-label-above"><div class="field-label">Content Image:&nbsp;</div><div class="field-items"><div class="field-item even"><div class="field-collection-view clearfix view-mode-full field-collection-view-final"><div class="entity entity-field-collection-item field-collection-item-field-content-image clearfix" about="/field-collection/field-content-image/16" typeof=""> <div class="content"> <div class="field field-name-field-category-body-image field-type-image field-label-hidden"><div class="field-items"><div class="field-item even"><img typeof="foaf:Image" src="/sites/default/files/styles/category_image/public/homeleachingbenchacid_plant.jpg?itok=eW96XoFh" alt="" /></div></div></div> </div> </div> </div></div></div></div></div> Mon, 03 Jun 2013 21:45:05 +0000 hazen-research-admin 18 at