| Patents for C22B 30 - Obtaining antimony, arsenic or bismuth (1,043) |
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| 04/21/2010 | CN101696471A Plant metallurgical method for recovering gold from gold tailings |
| 04/21/2010 | CN101696469A Method for separating multi-element alloy of lead, bismuth, gold, silver and copper |
| 04/21/2010 | CN101078052B Method for synthetically reclaiming iron and non-ferrous metal from solid waste of iron and steel plant |
| 04/14/2010 | EP2174914A1 Method of treating diarsenic trioxide |
| 04/14/2010 | EP2174913A1 Method of treating nonferrous smelting intermediary product containing arsenic |
| 04/14/2010 | EP2174912A1 Method of treating copper-arsenic compound |
| 03/31/2010 | CN201431831Y Integrated arsenic collector |
| 03/17/2010 | CN101671777A Multi-metal recovery processing technique of waste liquid generated in germanium producing process |
| 03/10/2010 | CN201420092Y Large distillation furnace used for producing high-purity arsenic |
| 03/03/2010 | CN101660061A New process for removing arsenic by strong oxidization in blast furnace |
| 03/02/2010 | CA2481332C Process for the treatment or removal of impurities in a hydrometallurgical extraction process |
| 02/10/2010 | CN101643860A Environment-friendly method and environment-friendly device for mercury-antimony separation for mercury-antimony composite ore |
| 12/16/2009 | CN201362738Y Special heating kettle for producing high-purity arsenic |
| 12/10/2009 | WO2009146647A1 Method of extracting te and bismuth oxide and recovering byproduct |
| 12/09/2009 | CN201359448Y Connection device for converter and flue |
| 12/09/2009 | CN201358292Y Vacuum decomposer capable of decomposing gallium arsenicde into metallic gallium and metallic arsenic |
| 12/09/2009 | CN201358289Y Vacuum decomposer capable of decomposing gallium arsenide into metallic gallium and metallic arsenic |
| 12/09/2009 | CN101598498A Stibium melting furnace |
| 12/09/2009 | CN101597690A Method for recycling multiple precious metals from anode mud |
| 12/02/2009 | CN101591734A Integrated arsenic collector |
| 11/11/2009 | CN100558918C Method for the recovery of valuable metals and arsenic from a solution |
| 11/10/2009 | US7615199 Method for the recovery of valuable metals and arsenic from a solution |
| 10/28/2009 | CN101565781A Method and device for producing high-purity antimony |
| 10/21/2009 | CN101560606A Deleading method through vacuum distillation of noble lead materials |
| 10/07/2009 | CN201321484Y Installation for producing high-purity antimony |
| 09/23/2009 | CN101538658A Novel process for smelting antimony oxide slag |
| 09/23/2009 | CN101538654A Method for extracting stibium from waste of stibium catalyst |
| 09/23/2009 | CN101537388A Separation method for bismuth-molybdenum-copper-sulfide mixed concentrate |
| 09/16/2009 | CN101532091A Technology of extracting and separating valuable metals such as Pb, In, Sb, Cu and Sn from lead smelting converter slags |
| 09/09/2009 | CN101525694A Separation process for material containing lead, antimony, copper, bismuth and silver |
| 09/02/2009 | CN101519730A Method for extracting bismuth from ash of copper converter |
| 09/02/2009 | CN101519728A Method for preparing bismuth oxide by using ash of copper converter |
| 08/26/2009 | CN101514399A Balancing lead smelting process for comprehensive resource utilization and device thereof |
| 08/26/2009 | CN101514396A Method for separating tin and stibium from tin-lead anode slime |
| 08/26/2009 | CN100532591C Method of removing arsenic for anode mud with high arsenic and lead content |
| 08/19/2009 | CN101509080A Method for comprehensively processing stibium smelt arsenic alkaline residue and producing colloid antimony peroxide |
| 08/19/2009 | CN101509079A Method for comprehensively processing stibium smelt arsenic alkaline residue and producing colloid antimony peroxide |
| 08/12/2009 | CN101503761A Method for separating and recycling valuable metal from pressure leached high sulphur slag |
| 08/04/2009 | US7569192 System for recovery of daughter isotopes from a source material |
| 06/10/2009 | CN100497682C Technique of comprehensive recovering valuable metal in chlorine-oxygen-antimony slag |
| 06/04/2009 | WO2009068735A1 Method for processing pyritic concentrate containing gold, copper and arsenic |
| 06/04/2009 | CA2706414A1 Method for processing pyritic concentrate containing gold, copper and arsenic |
| 06/03/2009 | CN100494426C Method for producing high-purity arsenic |
| 05/27/2009 | CN201245696Y Flue-gas desulfurizing device of stibium smelting reverberatory furnace |
| 05/27/2009 | CN101443466A Process for recovery of antimony and metal values from antimony- and metal value-bearing materials |
| 05/20/2009 | CN100488890C Method for reclaiming valuable element from acidic arsenic-containing biological oxidation gold extraction waste liquor |
| 05/19/2009 | US7534389 Apparatus and process for extracting arsenic in vacuum |
| 05/06/2009 | CN101426731A Method for treating arsenic containing solution |
| 04/29/2009 | CN100482819C Production method for high-purity arsenic and its equipment |
| 04/22/2009 | CN101413066A Vacuum decomposing method for separating gallium arsenide as metal gallium and metal arsenic |
| 04/22/2009 | CN101413065A Vacuum decomposing apparatus for separating gallium arsenide as metal gallium and metal arsenic |
| 04/22/2009 | CN101413064A Vacuum decomposing apparatus for separating gallium arsenide as metal gallium and metal arsenic |
| 04/09/2009 | WO2008108888A3 Separation of radium and rare earth elements from monazite |
| 04/08/2009 | CN101403045A Synthetic recovery method for plumbum anode slime slag rich in bismuth |
| 04/08/2009 | CN100475985C Recovering process of valuable metal from crude bismuth |
| 03/18/2009 | CN101386915A Method for recovering simple substance arsenic from arsenic sulfide slag |
| 03/04/2009 | CN101376929A Method for extracting bismuth from bismuth ore concentrate or material containing bismuth |
| 03/03/2009 | US7498006 Smelting arsenic gold ore concentrate and iron powder; heating to remove the volatilized arsenic sulfides; crystallization, producing arsenic; shutdown,cooling, charge the air, take out the gold-rich slag after dearsenization, and extract fine gold |
| 02/12/2009 | WO2009019955A1 Method for treatment of arsenic-containing nonferrous smelting intermediate product |
| 02/12/2009 | WO2009019799A1 Method of treating nonferrous smelting intermediate product containing arsenic |
| 02/12/2009 | CA2707387A1 Method of processing non-ferrous smelting intermediates containing arsenic |
| 02/04/2009 | CN101358298A Desilverization method during bismuth refining procedure |
| 01/22/2009 | WO2009011320A1 Method of treating arsenical matter with alkali |
| 01/22/2009 | WO2009011318A1 Method of treating diarsenic trioxide |
| 01/22/2009 | WO2009011317A1 Method of treating nonferrous smelting intermediary product containing arsenic |
| 01/22/2009 | WO2009011316A1 Method of treating copper-arsenic compound |
| 01/22/2009 | WO2009011076A1 Method of treating nonferrous smelting intermediate product containing arsenic |
| 01/22/2009 | WO2009011075A1 Method of treating copper-arsenic compound |
| 01/22/2009 | WO2009011074A1 Method of alkali treatment of substance containing arsenic |
| 01/22/2009 | US20090022639 Treatment of material containing at least one valuable metal and arsenic to form a valuable metal-depleted scorodite sediment and a pure aqueous solution to be discharged from process; valuable metals are first removed and then arsenic precipitation from solution is performed in two stages |
| 01/22/2009 | CA2694797A1 Method of alkali processing substance containing arsenic |
| 01/22/2009 | CA2694794A1 Method of processing diarsenic trioxide |
| 01/22/2009 | CA2694793A1 Method of processing non-ferrous smelting intermediate containing arsenic |
| 01/22/2009 | CA2694792A1 Method of processing copper arsenic compound |
| 01/21/2009 | EP2017227A1 Method of treating arsenic-containing solution |
| 01/07/2009 | CN101338368A Method for preprocessing anode sludge and recovering dissipated metal |
| 12/24/2008 | CN101328539A Oxidation oven ash hydrometallurgical leaching process |
| 12/03/2008 | CN201158692Y Vacuum sublimation purification device of high purity arsenic |
| 12/03/2008 | CN101314183A Method for synthesizing monocrystal bismuth nano-wire with intense magnetic field abduction |
| 11/19/2008 | CN201151737Y Device for preparing diantimony trioxide by internally heating lead-antimony alloy |
| 11/19/2008 | CN201151736Y Improved device for producing 2# antimony by arsenic-containing lead-antimony alloy |
| 11/12/2008 | CN100432247C A process for-reprocessing oxidic by-products containing arsenic |
| 10/22/2008 | CN101289710A Process for abstracting bismuth by low-temperature alkaline fusion metallurgy of bismuth clean ore |
| 10/08/2008 | CN101280368A Stibium blast furnace treatment method using oxygenized air |
| 10/01/2008 | EP1727916A4 Recovery of metals from oxidised metalliferous materials |
| 09/17/2008 | CN101265520A Treatment method for refining lead slag-removed by antimony fire refining process |
| 09/10/2008 | CN101260458A Comprehensive utilization method for high-arsenic pyrite |
| 08/27/2008 | CN100413984C Impurity removing refining process of high pure bismuth |
| 08/26/2008 | US7416712 Extracting metals from arsenosulfidic and/or sulfidic cobalt and/or nickel ore or concentrate by conversion to cobalt monosulfide and/or nickel sulfide by sulfur or sulfur-containing arsenic compounds; sulfiding; leaching of soluble metals and rare earth elements |
| 08/07/2008 | WO2008036817A3 Method and apparatus for microwave induced pyrolysis of arsenical ores and ore concentrates |
| 08/05/2008 | CA2384664C Stable ferric arsenate precipitation from acid copper solutions whilst minimising copper losses |
| 07/30/2008 | CN100406595C Preparation method and use of bioactive sing-compound arsenic |
| 07/23/2008 | CN101225479A Vacuum sublimation purifying method for high-purity arsenic and vacuum sublimation furnace thereof |
| 07/23/2008 | CN101225478A Large vacuum furnace for processing arsenic-containing gold ore or arsenic concentrate and continuous operation method thereof |
| 07/23/2008 | CN100404708C Two-section roasting production process for recovering Au, Cu, Ag, As and S from As and C containing aurin ore |
| 07/16/2008 | CN100402680C Pollution-free arsenic alkali slage treating technique |
| 06/26/2008 | WO2008074806A1 Method for obtaining copper from cupriferous arsenosulphide and/or antimony sulphide ores or ore concentrates |
| 06/25/2008 | CN101205571A Method for reclaiming metal stibium from waste fluorination catalyst antimony pentachloride |
| 06/18/2008 | CN101200776A Method for removing arsenic from smoke containing arsenic trioxide |
| 06/11/2008 | CN100393921C Method for producing grain sizes even distributed antimony trioxide in single crystal type, and equipment |