| Patents for C22B 3 - Extraction of metal compounds from ores or concentrates by wet processes (16,429) |
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| 04/24/2013 | CN102051479B Biological stirring leaching method of ordinary-temperature acidophilic leaching-ore bacteria and high-arsenic high-grade primary copper sulfide ore |
| 04/24/2013 | CN102002595B Recovery method of lithium in waste battery |
| 04/23/2013 | CA2783646C Process for recovery of precious metals |
| 04/18/2013 | US20130091990 Method for recovering precious metals and copper from leach solutions |
| 04/17/2013 | EP2580162A1 Method for recovering gold by solvent extraction |
| 04/17/2013 | CN202881348U Device for recycling copper from acidic copper-containing solution |
| 04/17/2013 | CN202881347U Micro-negative-pressure extracting tank in nonferrous industry |
| 04/17/2013 | CN103045881A Method for extracting and separating thorium ions by using ion liquid extraction-supercritical CO2 reverse extraction technology |
| 04/17/2013 | CN103045872A New technology for recovering silicon-supported palladium |
| 04/17/2013 | CN103045868A Method for extracting vanadium from extracted vanadium tailings |
| 04/17/2013 | CN103045865A Method for processing organic extraction agent for rare earth extraction |
| 04/17/2013 | CN103045864A Method for washing impurity iron in loaded organic phase in wet-method copper extraction process |
| 04/17/2013 | CN103045863A Method for pretreating indium-containing zinc oxide acid supernatant |
| 04/17/2013 | CN103045862A Separation and purification method of trace hafnium in rock |
| 04/17/2013 | CN103045861A Extraction method of rubidium |
| 04/17/2013 | CN103045853A Process for recovering lead from lead-acid battery paste |
| 04/17/2013 | CN103045852A Method for extracting manganese and silver from manganese ores |
| 04/17/2013 | CN103045851A Technique for decomposing Baotou rare-earth ores |
| 04/17/2013 | CN103045849A Pretreatment method for platinum palladium concentrate |
| 04/17/2013 | CN102382980B Method for directly purifying cadmium from sponge cadmium |
| 04/17/2013 | CN102363842B Process for recovering arsenic comprehensively by two-section roasting of arsenic-containing and carbon-containing gold concentrates |
| 04/17/2013 | CN102321812B Method for comprehensive utilization of laterite nickel ore |
| 04/17/2013 | CN102312099B Copper sponge preparation process by reducing copper contained acidic leachate with iron powder |
| 04/17/2013 | CN102268548B Method for preparing lanthanum oxide from red-mud scandium extraction raffinate |
| 04/17/2013 | CN102251107B Method for treating rhenium-containing raw material |
| 04/17/2013 | CN102086485B Comprehensive utilization method for vanadium extraction and power generation by using stone coal burned by circulating fluidized bed boiler |
| 04/17/2013 | CN102071321B Method for extracting vanadium and chromium from vanadium-containing steel slag by high-alkalinity potassium hydroxide |
| 04/17/2013 | CN102021326B Method for leaching copper-cobalt alloy |
| 04/11/2013 | WO2013051965A1 Method for separating metals from solutions |
| 04/11/2013 | WO2013051715A1 Palladium separating agent, method for producing same and use of same |
| 04/11/2013 | WO2013049886A1 Improvements in recovery of metals from ores |
| 04/11/2013 | US20130089477 Method and Apparatus for Recovering Rare Metal |
| 04/10/2013 | EP2577676A1 Method for treating spent nuclear fuel not requiring a plutonium reductive back-extraction operation |
| 04/10/2013 | EP2576039A1 Method and apparatus for homogenising and stabilising an iron-bearing residue |
| 04/10/2013 | CN202865304U Acid leaching device |
| 04/10/2013 | CN202865302U Biologic column leaching testing apparatus for lab |
| 04/10/2013 | CN202865301U Device for removing air resistance of slurry inlet pipeline |
| 04/10/2013 | CN202865300U Ore feeding device from acid leaching tank to acid leaching thickener |
| 04/10/2013 | CN202860546U Resolving electrolysis carbon discharge device |
| 04/10/2013 | CN103038373A Method and apparatus for extracting precious metal from an inorganic granular waste catalyst |
| 04/10/2013 | CN103031449A Ion-exchange method for extracting gallium from mother solution |
| 04/10/2013 | CN103031442A Method for comprehensively utilizing arsenious waste liquor produced in copper-smelting process |
| 04/10/2013 | CN103031441A Recycling method for metallic elements in waste nickel-hydrogen batteries |
| 04/10/2013 | CN103031436A Technology for leaching arsenic sulfide residues by ferric iron regenerated through biological oxidation |
| 04/10/2013 | CN103030121A Preparation method and application of halogenoid compound |
| 04/10/2013 | CN102605181B Method for removing impurities from secondary zinc materials |
| 04/10/2013 | CN102417972B Method for preparing iron ore concentrate and manganese chemical products by carrying out dual reduction on refractory ferro-manganese symbiotic lean ore |
| 04/10/2013 | CN102358918B Antimony removing method for ultra-pure tantalum pentoxide and niobium pentoxide |
| 04/10/2013 | CN102351591B Method for highly water-soluble nitrophosphate fertilizer production through decomposition of rare earth-containing phosphate rock by nitric acid and for rare earth recovery |
| 04/10/2013 | CN102337397B High-efficient separation and extraction process of silicon and vanadium in stone coal |
| 04/10/2013 | CN102321800B Method for preparing praseodymium-neodymium oxide |
| 04/10/2013 | CN102268552B Method for preparing scandium oxide by using alumina red mud |
| 04/10/2013 | CN102251109B Antifreezing method of sulfide ore bioleaching ore heap |
| 04/10/2013 | CN102191373B Novel method configured in wet smelter |
| 04/10/2013 | CN102071319B Method for preparing high-purity silver from silver-containing waste liquid |
| 04/10/2013 | CN102061398B Separating and recycling method of indium in hydrochloric acid system |
| 04/10/2013 | CN102020252B Biological leaching method of low-grade tellurium mine |
| 04/09/2013 | CA2530355C Method for processing sulfide ores containing precious metals |
| 04/04/2013 | WO2013045855A1 Process for treating an effluent that contains metals |
| 04/04/2013 | WO2013044380A1 A method and a system for gold extraction with halogens |
| 04/04/2013 | WO2013044376A1 Method and system for magnetic separation of rare earths |
| 04/03/2013 | CN202849519U Rare earth extraction separation control device |
| 04/03/2013 | CN202849514U Air draft stirring machine for hydrolyzing deposited iron |
| 04/03/2013 | CN202849513U Extraction device for extracting scandium from red mud |
| 04/03/2013 | CN202849512U Serial extraction box |
| 04/03/2013 | CN202849511U Device for deeply extracting copper |
| 04/03/2013 | CN202849510U Rare earth oxalate sedimentation device |
| 04/03/2013 | CN202849509U Ore cobalt leaching device without additional steam to heat |
| 04/03/2013 | CN103025899A Method for the extraction and recovery of vanadium |
| 04/03/2013 | CN103014779A Multistage ore slurry decomposition-electrodeposition cell and decomposition-electrodeposition combined technique |
| 04/03/2013 | CN103014760A Production method of electrolytic manganese metal |
| 04/03/2013 | CN103014379A Process for extracting vanadium from stone coal vanadium mine |
| 04/03/2013 | CN103014378A Vanadium liquid purification method |
| 04/03/2013 | CN103014377A Vanadium liquid purification method |
| 04/03/2013 | CN103014359A Separation and recovery method of monazite slag |
| 04/03/2013 | CN103014357A Method for recovering arsenic from arsenic soot |
| 04/03/2013 | CN103014354A Process for recycling lead from lead-acid battery paste |
| 04/03/2013 | CN103014350A Recycling method of zinc hypoxide |
| 04/03/2013 | CN103014347A Method for recycling waste lead-acid cells to directly produce lead oxide |
| 04/03/2013 | CN103014346A Process method for separating zinc, iron and cobalt and nickel ore concentrates from cobalt and nickel slag |
| 04/03/2013 | CN103014344A Method for two-stage iron settlement in high-temperature peracid zinc leachate |
| 04/03/2013 | CN103014343A Process for recycling ammonium tungstate from ammonium paratungstate crystallization mother liquor |
| 04/03/2013 | CN103014342A Purification method of indium back extraction solution |
| 04/03/2013 | CN103014341A Selective separation method of chromium and iron in hydrochloric acid system solution |
| 04/03/2013 | CN103014340A Method for selectively separating chromium and ferrum in sulfate solution |
| 04/03/2013 | CN103014339A Method for removing copper and cadmium through boiling and purification |
| 04/03/2013 | CN103014338A Method for processing poor organic phase after solvent extraction indium extracting |
| 04/03/2013 | CN103014337A Method for separating copper, chromium and zinc in acid leaching solution |
| 04/03/2013 | CN103014336A Preparation and method for treating high-arsenic and high-sulfur gold ore |
| 04/03/2013 | CN103014335A Process for comprehensively recovering gold and copper through combined biological dump leaching of refractory gold concentrate and copper melting slag |
| 04/03/2013 | CN103014334A Method for replacement dissolution of bastnaesite (bastnasite) |
| 04/03/2013 | CN103014333A Separation and recovery method of uranium, thorium and rare earth in monazite slag |
| 04/03/2013 | CN103014332A Pretreatment method for extracting molybdenum from molybdenum ore |
| 04/03/2013 | CN103014331A Process for pressure leaching of molybdenum and nickel from molybdenum-nickel ore |
| 04/03/2013 | CN103014330A Method for improving water leaching rate of vanadium by using calcine afterheat |
| 04/03/2013 | CN103014322A Method for efficiently separating and purifying rhodium and ruthenium |
| 04/03/2013 | CN103014320A Method for preparing manganese sulfate by using sulfur-containing carbonaceous manganese carbonate ore |
| 04/03/2013 | CN103014319A Method for strengthening gold extraction of iron gold concentrate roasted product containing sulphur and arsenic |
| 04/03/2013 | CN103014317A Method for extracting lithium salt from lepidolite |
| 04/03/2013 | CN103014316A Novel method for processing lepidolite material |