| Patents for C22B 30 - Obtaining antimony, arsenic or bismuth (1,043) |
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| 03/13/2013 | CN202786383U Refining system for oxidizing high-arsenic high-antimony crude bismuth |
| 03/13/2013 | CN202786382U System for refining tellurium-rich crude bismuth |
| 03/13/2013 | CN102965517A Treatment method for vitrifying arsenic-alkali residue |
| 03/13/2013 | CN102965499A Method for extracting valuable element in arsenic salt purification slag from zinc hydrometallurgy |
| 03/07/2013 | CA2844874A1 Process for recovery of technical grade molybdenum from diluted leaching acid solutions (pls), with highly concentrated arsenic, from metallurgical residues |
| 03/06/2013 | CN202766603U Electric-heating bottom-blowing reducing direct antimony-smelting engineering equipment |
| 03/06/2013 | CN102952947A Comprehensive recovery method of rare metals in waste circuit boards |
| 02/27/2013 | CN202755040U Automatic swing device for smelting and refining antimony |
| 02/20/2013 | CN202744612U System for refining high-tin crude bismuth |
| 02/13/2013 | CN202734496U Device for reducing and smelting antimony by using bottom-blowing molten pool |
| 02/13/2013 | CN202730211U Converting device with dual air blowers |
| 02/13/2013 | CN102925719A Method for deep recovery of antimony from arsenic alkali residue leaching solution by using electric potential control |
| 02/13/2013 | CN102925703A Method for recycling valuable metals from lead anode slime |
| 02/13/2013 | CN102925701A Method using wet alkaline process of cobalt-nickel (Co-Ni) residue containing arsenic to prepare arsenate |
| 02/13/2013 | CN102925669A Comprehensive recovery method for reelected tailings of stannic oxide ore |
| 02/13/2013 | CN102921959A Method for preparing metal bismuth powder by using microwave hydrothermal method |
| 02/06/2013 | CN102912143A Method for comprehensively treating indium-containing lead anode slime through whole wet process |
| 02/06/2013 | CN102912125A Method for separating lead and antimony in antimony-containing lead concentrates |
| 02/06/2013 | CN102296180B Method for separating tungsten, molybdenum and bismuth in bismuth sulfide ore concentrate |
| 01/30/2013 | CN102181668B Combined extraction method for arsenic in high-arsenic manganese ore tailings |
| 01/16/2013 | EP2545193A1 Method and device for processing flue dust |
| 01/09/2013 | CN102352440B Method for recovering palladium sponge and bismuth from multi-metal catalyst utilized in sodium gluconate production |
| 01/02/2013 | CN102851505A Method for separating antimony mercury from flue gas generated by antimony mercury ore smelting |
| 01/02/2013 | CN102851497A Treating method of arsenious material |
| 01/02/2013 | CN102847405A Processing method of arsenious smelting smoke |
| 01/02/2013 | CN102345016B Method for recovering arsenic and heavy metals from contaminated acid generated by metallurgical off-gas |
| 12/26/2012 | CN102041394B Process for producing refined bismuth by utilizing bismuth oxychloride |
| 12/19/2012 | CN102181644B Method for reclaiming rare noble metals from waste circuit board |
| 12/12/2012 | CN202595234U Antimony oxide powder condensing and collecting system |
| 12/12/2012 | CN102816929A Short-flow method for preparing antimony or bismuth hydrolysis mother solution and composite cleaning agent for short-flow method |
| 12/12/2012 | CN102134652B Process for preliminarily separating antimony from gold in antimony-gold material |
| 12/04/2012 | US8323377 Recovery of metals from oxidised metalliferous materials |
| 11/28/2012 | CN102796887A Method and system for refining high-tin coarse bismuth |
| 11/28/2012 | CN102796886A Method and system for refining high-tellurium coarse bismuth |
| 11/28/2012 | CN102796885A Refining system and method for oxidizing high-arsenic high-antimony coarse bismuth |
| 11/28/2012 | CN102061377B Process for recycling bismuth concentrate from tungsten ore magnetic separation tailings |
| 11/28/2012 | CN101821202B Method for treatment of arsenic-containing nonferrous smelting intermediate product |
| 11/21/2012 | CN102787246A Smelting production method and device of antimony trioxide |
| 11/21/2012 | CN102787240A Method for comprehensive recovery of valuable metals from tin anode mud |
| 11/14/2012 | CN202532872U Vertical volatilization furnace for smelting antimony oxide powder |
| 11/14/2012 | CN202530136U Gas collecting device for vertical volatilization furnace |
| 11/14/2012 | CN102168176B Comprehensive recycling process for valuable metal roasting-cyaniding gold-containing tailing |
| 11/07/2012 | CN202519312U Volatilization roasting device for antimony oxide powder |
| 11/07/2012 | CN102002596B Process for reclaiming bismuth and silver from bismuth refining slag |
| 10/31/2012 | CN102758094A Technology and device thereof adopting bottom blowing molten bath for antimony reduction and smelting |
| 10/31/2012 | CN102757022A Technology for extracting tellurium product and valuable metal from lead anode slime |
| 10/26/2012 | WO2012144973A1 Extraction of gallium and/or arsenic from gallium arsenide |
| 10/24/2012 | CN102747232A Method for treating refined copper bismuth dross by electric induction furnace |
| 10/24/2012 | CN102747229A Method for separating and recycling valuable metals in powder rich in multiple metals of waste circuit board |
| 10/24/2012 | CN102168188B Antimony flotation concentrate flash oxidization primary refining production process and flash antimony metallurgical furnace |
| 10/18/2012 | US20120260774 Extraction of gallium and/or arsenic from gallium arsenide |
| 10/17/2012 | CN102732735A Method for recovering valued metals from melting slag of copper anode slime Kaldo furnace |
| 10/17/2012 | CN102732732A Method for depleting lead copper matte and bismuth copper matte by using induction electric furnace |
| 10/03/2012 | CN101784488B Method of treating nonferrous smelting intermediary product containing arsenic |
| 09/26/2012 | CN102690955A Method for comprehensively recycling valuable metals from lead anode slime by oxygen pressure treatment |
| 09/26/2012 | CN102690951A Method for removing lead and antimony from alkaline-leaching dearsenification solution of lead anode slime |
| 09/26/2012 | CN102690946A Method for comprehensively extracting valuable metals from tellurium-containing polymetallic materials |
| 09/26/2012 | CN102061395B Smelting and separating method of noble lead |
| 09/19/2012 | CN102676851A Device for crude bismuth fire refining |
| 09/19/2012 | CN102676850A Proportioning method for high-silicon and low-iron slag through volatile smelting of antimony smelting blast furnace |
| 09/19/2012 | CN102676809A Arsenic-alkali separation method for leaching agent after removing antimony from sodium carbonate type arsenic-alkali slag in antimony smelting process |
| 09/05/2012 | CN202415653U Smelting device containing antimony, zinc and lead concentrates |
| 08/29/2012 | CN102650000A Method for recovering bismuth and arsenic from bismuth and arsenic-containing solution |
| 08/29/2012 | CN101886174B Process for refining high-purity bismuth from bismuth-containing material generated from anode mud recovery |
| 08/29/2012 | CN101831551B Method for recovering gold, silver, bismuth, stibium and copper from lead anode mud |
| 08/15/2012 | CN202380063U Equipment for refining high tellurium crude bismuth |
| 08/15/2012 | CN102634681A Deleading agent and deleading method for fire refining of bismuth |
| 08/15/2012 | CN102634672A Method for treating arsenic-containing waste copper slag |
| 08/15/2012 | CN102634663A Enrichment and separation technology of low-grade material containing silver, lead, copper and bismuth |
| 08/08/2012 | CN102628108A Method for separating lead and antimony of jamesonite |
| 08/08/2012 | CN102628103A Method for enriching valuable metal from mine tailing and smelting slag by fire method |
| 08/01/2012 | CN102620552A Vertical volatilization furnace for antimony-oxygen powder smelting |
| 08/01/2012 | CN102618731A Fire arsenic removal method |
| 08/01/2012 | CN102618730A Process for separating materials containing indium, lead, silver, copper and bismuth |
| 07/25/2012 | CN102605197A Furnace-roof feeding device of antimony smelting and volatilizing smelting blast furnace |
| 07/25/2012 | CN102601112A Method for extracting arsenic and combustible gas from arsenic contaminated soil by biotechnology |
| 07/25/2012 | CN102031383B Wet process for lead-silver residues |
| 07/25/2012 | CN102002603B Large arsenide reduction furnace |
| 07/25/2012 | CN101956084B Low temperature molten salt clean metallurgy method of bismuth |
| 07/18/2012 | CN102586627A Method for recovering bismuth from bismuth slag |
| 07/18/2012 | CN102586626A Method for volatilizing, calcining and smelting antimony oxide powder |
| 07/18/2012 | CN102586615A Method for efficiently enriching valued metals from complicated sulfur- and lead-containing waste residue |
| 07/18/2012 | CN102586611A Method for recovering lead, antimony, zinc, tin and indium from lead-antimony grain slag with electric furnace through temperature control by stages |
| 07/18/2012 | CN102586604A Technology for wet-processing anode mud containing arsenic and lead |
| 07/18/2012 | CN101538654B Method for extracting stibium from waste of stibium catalyst |
| 07/12/2012 | US20120175307 Multi-layered macromolecules and methods for their use |
| 07/11/2012 | CN102560150A Efficient lead removing agent for fire refining antimony and preparation method and application of efficient lead removing agent |
| 07/11/2012 | CN102560132A Method for treating selenium alkali residues in antimony pyro-refining |
| 07/11/2012 | CN102557189A Method for separating and recovering peracid and high arsenic from waste liquor obtained after arsenic is extracted from nickel-molybdenum ore smelting dust |
| 07/04/2012 | CN202297739U 铅精炼碱渣一步法分离铅、锑渣和碱液的装置 Alkali-step separation of lead refining of lead, antimony slag and lye device |
| 07/04/2012 | CN102534258A Method for preparing indium and bismuth from coarse bismuth-containing indium |
| 07/04/2012 | CN102534257A Novel bismuth smelting separation method |
| 07/04/2012 | CN102534256A Stibium blast furnace for generating antimony matte, device of coarse stibium blowing furnace and direct converting method |
| 07/04/2012 | CN102534255A Wet process-pyrogenic process joint smelting process for antimony or bismuth |
| 07/04/2012 | CN102534237A Environment-friendly treatment method for aluminum slag from tin smelting |
| 07/04/2012 | CN102534228A Method for comprehensively recovering valuable elements from high-arsenic-containing copper smelting soot |
| 07/04/2012 | CN102002604B Metal arsenic reformer |
| 07/04/2012 | CN101899574B Method for comprehensively reclaiming arsenic caustic dross and sulfur dioxide flue gas in antimony pyrometallurgical smelting |
| 07/04/2012 | CN101798636B Process for purifying coarse arsenic |
| 07/04/2012 | CN101743202B Method of treating copper-arsenic compound |