| Patents for C22B 17 - Obtaining cadmium (340) |
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| 01/25/2012 | CN101871045B Method for producing zinc by utilizing sulphate process titanium dioxide waste acid |
| 01/18/2012 | CN102324592A Method for recovering cadmium, ferrum, nickel and cobalt from used nickel-cadmium battery |
| 01/11/2012 | CN102312095A CRT (cathode ray tube) fluorescent powder processing method |
| 12/14/2011 | CN102277503A 一种海绵镉饼熔炼自动加料机 One kind of sponge cake melting cadmium automatic feeding machine |
| 12/14/2011 | CN102277502A 草本植物半边莲应用于富集提取污染土壤中镉的方法 Lobelia herb extract is applied to the enrichment method cadmium contaminated soil |
| 12/07/2011 | CN202063978U 一种从含锌废渣中湿法提取锌、镉和铜的设备 A wet extraction of zinc, cadmium, zinc and copper from slag equipment |
| 12/07/2011 | CN202063977U 电加热粗镉连续还原熔炼炉 Electric heating crude cadmium continuous smelting reduction furnace |
| 12/07/2011 | CN102268549A 废旧电路板中镉的回收方法 Waste printed circuit board in the method of recovering cadmium |
| 11/30/2011 | CN101824541B 一种湿法炼锌副产物的处理方法 Processing method hydrometallurgy byproducts |
| 11/03/2011 | WO2011137268A1 Method for recovering tellurium from module comprising cadmium telluride |
| 11/03/2011 | WO2011135991A1 Valuable metal recovery method |
| 10/25/2011 | US8043584 Method of recycling Cd-112 isotope |
| 10/11/2011 | US8034150 Process and system for material reclamation and recycling |
| 10/05/2011 | CN102206758A Method and equipment for wet extraction of zinc, cadmium and copper from zinc-containing waste residue |
| 09/22/2011 | WO2011113997A1 Reactor and a method of purifying a process solution |
| 09/22/2011 | CA2789235A1 Reactor and a method of purifying a process solution |
| 06/29/2011 | CN102108447A Technology for removing iron and arsenic from leaching solution of purification slag generated in zinc hydrometallurgy |
| 06/28/2011 | US7968065 Process for the recovery of value metals from base metal sulfide ores |
| 06/22/2011 | CN101613796B Method for separating metal elements of zinc-nickel-cadmium-containing materials |
| 06/01/2011 | EP2132347B1 Method for processing cadmiferous solids |
| 05/18/2011 | CN102061389A Method for recycling arsenium and enriching heavy metals in arsenium-containing metallurgical sludge |
| 04/20/2011 | CN101613804B Method for recovering cadmium from waste nickel-cadmium battery |
| 03/16/2011 | CN101624652B Method for leaching mixed cathode and anode materials from waste nickel-cadmium batteries |
| 02/16/2011 | CN101974656A Method for preparing iron ingots and coproducing cadmium hydroxide and copper hydroxide from mixed iron slag by using arc process |
| 02/16/2011 | CN101709382B Recovery and comprehensive treatment process of valuable metals in zinciferous materials |
| 02/09/2011 | CN101967564A Method for producing cadmium nitrate and copper nitrate in preparation of cast iron ingots by arc process mixed iron slag |
| 01/12/2011 | CN101942564A Process for producing pure cadmium by continuous reduction and distillation of zinc cadmium slag and sponge cadmium |
| 12/30/2010 | US20100326237 Composition of matter tailoring: system i |
| 11/17/2010 | CN101886177A Method for recovering cadmium from waste nickel-cadmium battery |
| 11/04/2010 | US20100278686 Process for recovering metals and metal compounds from mined ore and other metal-bearing raw source materials |
| 10/27/2010 | CN101871046A Method for recycling heavy metal pollution wastes |
| 10/27/2010 | CN101871045A Method for producing zinc by utilizing sulphate process titanium dioxide waste acid |
| 09/15/2010 | CN101220412B Set technique for extracting cadmium from waste and old nickel-cadmium battery, and producing ferro-nickel alloy |
| 09/08/2010 | CN101824541A Treatment method of wet method zinc smelting by-products |
| 06/23/2010 | CN101191158B Method for reclaiming metal cadmium from cadmium-containing waste material |
| 06/15/2010 | US7736606 Process for the recovery of value metals from base metal sulfide ores |
| 06/08/2010 | US7731920 extraction; leaching; cation exchange resins; for recycling photovoltaic devices |
| 05/19/2010 | CN101709382A Recovery and comprehensive treatment process of valuable metals in zinciferous materials |
| 05/12/2010 | CN201459216U Cadmium tower with high cadmium-zinc condenser |
| 05/12/2010 | CN101703842A Method for enriching and separating trace cadmium |
| 03/17/2010 | CN101671833A Method for recovering silver in alloyed scrap containing indium, cadmium and silver |
| 01/12/2010 | US7645372 continuously adding lead aceate to the zinc sulfate solution so that the amount of lead is adjusted to be at least equivalent to the amount of thallium, and adding zinc powder to ZnSO4 solution to precipitate cadmium and thallium; removing thallium; and zinc particle self dissolve forming ZnSO4 |
| 12/23/2009 | CN100572573C Method for recycling copper from clean melt cinder of wet-process zinc metallurgy |
| 12/16/2009 | EP2132347A1 Method for processing cadmiferous solids |
| 07/02/2009 | US20090165598 Novel phosphinic acids and their sulfur derivatives and methods for their preparation |
| 06/03/2009 | CN100494424C Hydrogenation method for high-pure cadmium |
| 04/16/2009 | US20090095127 Process and system for material reclamation and recycling |
| 03/11/2009 | CN101381816A Method and equipment for recovering cadmium and nickel from waste and old nickel-cadmium battery and preparing metal cadmium ingot and superfine nickel powder |
| 01/15/2009 | US20090013829 Process for the recovery of value metals from base metal sulfide ores |
| 01/14/2009 | EP2014778A2 Method of recycling Cd-112 isotope |
| 09/25/2008 | WO2008113403A1 Method for processing cadmiferous solids |
| 09/25/2008 | US20080233024 Method of mercury removal in a wet flue gas desulfurization system |
| 09/24/2008 | CN201122648Y Vacuum distillation commercial installation especially for waste nickel-cadmium battery recovery |
| 09/03/2008 | CN101255502A Process for comprehensive recovery of indium, cadmium, thallium and zinc from lead system smoke |
| 07/23/2008 | CN100404437C Method for treating industrial waste water containing cadmium using waste beer yeast |
| 07/16/2008 | CN101220416A Method for recycling copper from clean melt cinder of wet-process zinc metallurgy |
| 07/16/2008 | CN101220412A Set technique for extracting cadmium from waste and old nickel-cadmium battery, and producing ferro-nickel alloy |
| 06/11/2008 | EP1678336A4 A process for the recovery of value metals from base metal sulfide ores |
| 06/11/2008 | CN101195862A Method for purifying and cadmium removing from nickel and cobalt solution |
| 06/04/2008 | CN101191158A Method for reclaiming metal cadmium from cadmium-containing waste material |
| 05/28/2008 | CN101188323A Vacuum distillation industrial device special for recycling abandoned nickel and cadmium cell |
| 02/20/2008 | EP1888464A2 System and method for separating tellurium waste |
| 02/20/2008 | CN101126134A Hydrogenation method for high-pure cadmium |
| 12/11/2007 | CA2478516C A process for the recovery of value metals from base metal sulfide ores |
| 09/19/2007 | CN100338240C Method for removing thallium from a zinc-containing solution |
| 09/12/2007 | CN100336922C Vacuum smelting method for high-thallium coarse cadmium |
| 09/11/2007 | CA2395851C A method for treatment of flue gas cleaning products |
| 05/01/2007 | CA2221703C Process for recovery of metal ions |
| 02/06/2007 | CA2331160C Rotary thermal oxidizer for battery recycling |
| 01/24/2007 | CN1899983A Method for treating industrial waste water containing cadmium using waste beer yeast |
| 01/02/2007 | US7157064 Preparing an aqueous suspension of the solid or semisolid waste material, separating the solid and liquid material to obtain solid waste and liquid waste solution, collecting solid waste, repeating above steps, acidifying liquid waste |
| 10/17/2006 | US7122164 Having significant activity for multivalent cations; useful for removing a contaminant metal ion from a contaminated solution |
| 08/17/2006 | US20060179977 Method for removing thallium from a zinc-containing solution |
| 07/26/2006 | EP1682687A1 Method for removing thallium from a zinc-containing solution |
| 07/12/2006 | EP1678336A1 A process for the recovery of value metals from base metal sulfide ores |
| 05/31/2006 | CN1780923A Method for removing thallium from a zinc-containing solution |
| 04/19/2006 | CN1760386A Vacuum distillation method for separating cadmium element from mixed metals in worn-out printing circuit board |
| 03/29/2006 | CN1752233A Vacuum smelting method for high-thallium coarse cadmium |
| 03/15/2006 | EP1229977B1 Polyamide-containing ligands covalently bonded to supports, polyamide-containing resins, and methods for removing metals from solutions |
| 02/08/2006 | EP1165845B1 Method and apparatus for removing undesirable metals from iron-containing materials |
| 10/27/2005 | WO2005047551A8 Method for removing thallium from a zinc-containing solution |
| 10/26/2005 | EP1589599A1 Procedure and device for the recycling of batteries |
| 10/20/2005 | US20050232836 Process to eliminate both organic and inorganic total carbon in zinc silicate concentrate, with an additional effect of purging both waters and magnesium in the zinc production circuit |
| 08/23/2005 | US6932852 Method and apparatus for enhanced purification of high-purity metals |
| 06/02/2005 | US20050118081 Process for the recovery of value metals from base metal sulfide ores |
| 05/26/2005 | WO2005047551A1 Method for removing thallium from a zinc-containing solution |
| 05/26/2005 | US20050112041 Method for producing higher purity zinc oxide |
| 04/07/2005 | WO2005031012A1 A process for the recovery of value metals from base metal sulfide ores |
| 03/08/2005 | US6863873 Process to produce simonkolleite, zinc oxide and zinc hydroxide |
| 03/02/2005 | EP1292716B1 Method of processing zinc, cadmium and lead bearing furnace flue dust by heating in the presence of carbonaceous material |
| 01/04/2005 | US6838504 Metal wastes in polymer matrix; control releasing; pollution control |
| 12/28/2004 | US6835228 Process of recovering valuable metals from waste secondary batteries |
| 10/27/2004 | CN1172756C Innocuous recovering process for waste dry battery |
| 10/19/2004 | US6805833 Apparatus for enhanced purification of high-purity metals |
| 09/22/2004 | EP1251940B1 A method for treatment of flue gas cleaning products |
| 08/03/2004 | US6770249 Hydrometallurgical process utilizing an atmospheric calcium chloride leach to selectively recover from various metal feed stocks |
| 07/14/2004 | EP1200633A4 $i(THLASPI CAERULESCENS) SUBSPECIES FOR CADMIUM AND ZINC RECOVERY |
| 07/07/2004 | EP1435674A1 Integrated fixation systems |
| 05/19/2004 | CN1150341C Vacuum distiller for reclaiming used batteries |
| 05/06/2004 | US20040083854 Method and apparatus for enhanced purification of high-purity metals |