| Patents for C22B 3 - Extraction of metal compounds from ores or concentrates by wet processes (16,429) |
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| 05/18/2011 | CN102061383A Selective copper removing method for high-copper gold loaded carbon |
| 05/18/2011 | CN102061382A Method for recycling zinc from zinc leaching slag cleaning solution |
| 05/18/2011 | CN102061381A Method for bath leaching and extracting nickel and cobalt from garnierite |
| 05/18/2011 | CN101775495B Preparation method of active cryptomelane |
| 05/18/2011 | CN101760650B Method for leaching vanadium in vanadium-containing stone coal by wet process |
| 05/18/2011 | CN101717955B Method for recovering copper and nickel from plastic chromium coatings |
| 05/18/2011 | CN101713031B Method for removing impurities by oxidation in process of zinc hydrometallurgy |
| 05/18/2011 | CN101705377B Method for extracting vanadium from stone coal by wet-process enrichment and pyrogenic-process conversion |
| 05/18/2011 | CN101638722B Method for extracting and separating uranyl ions from aqueous phase |
| 05/18/2011 | CN101555551B Method for comprehensively recovering Fe, Cu and Si from copper smelting slag |
| 05/18/2011 | CN101492771B Hingganite ore concentrate decomposition method |
| 05/12/2011 | WO2011056576A2 Oxygen torch reclamation of metals with nitric acid recovery |
| 05/12/2011 | WO2011056548A2 Oxygen torch waste reclamation system and acid recovery |
| 05/11/2011 | EP2318558A1 Removal of metals from complex ores |
| 05/11/2011 | EP2115177B1 Method for the elution of 18f fluoride trapped on an anion-exchange phase in a form suitable for efficient radiolabeling without any evaporation step |
| 05/11/2011 | EP1984531B1 Method for recovering gold by halide leaching |
| 05/11/2011 | CN201825993U Continuous ion exchange device for extracting gallium in Bayer mother liquid |
| 05/11/2011 | CN201825992U Continuous ion exchange device extracting lithium from salt lake brine |
| 05/11/2011 | CN1938437B Heap bioleaching process |
| 05/11/2011 | CN102057066A Recovery of rhenium |
| 05/11/2011 | CN102057065A Saprolite neutralisation of heap leach process |
| 05/11/2011 | CN102057064A Multi-stage leaching process |
| 05/11/2011 | CN102057063A Process for forming high density sulfides |
| 05/11/2011 | CN102051635A Method for producing metal cobalt by adopting high-current density sulfuric acid electrolyte |
| 05/11/2011 | CN102051490A Novel method for recovering silver in high-iron sphalerite |
| 05/11/2011 | CN102051489A Method for recycling indium from acid pressure oxidative leaching liquid of zinc smelting product |
| 05/11/2011 | CN102051483A Method for reclaiming metals from molybdenum-containing waste catalyst |
| 05/11/2011 | CN102051481A Method for separating calcium and magnesium in hydrochloric acid soluble salt system |
| 05/11/2011 | CN102051480A Method for preparing elemental gold by utilizing synchronous absorption of persimmon tannins |
| 05/11/2011 | CN102051479A Biological stirring leaching method of ordinary-temperature acidophilic leaching-ore bacteria and high-arsenic high-grade primary copper sulfide ore |
| 05/11/2011 | CN102051478A Wet process for treating lead copper matte |
| 05/11/2011 | CN102051477A Method for chemically separating bastnaesite and urdite from mixed rare earth concentrate |
| 05/11/2011 | CN102049241A Preparation of noble-metal chelating adsorption resin |
| 05/11/2011 | CN102049238A Ion sieve for selectively extracting lithium and application thereof |
| 05/11/2011 | CN102049237A Iron phosphate ion sieve for selectively extracting Li and application thereof |
| 05/11/2011 | CN101709374B Method for preparing precursors of lithium titanate and lithium iron phosphate by comprehensively using ilmenite |
| 05/11/2011 | CN101649393B Method for enriching low-concentration valuable metals in mixed solution containing light metals |
| 05/11/2011 | CN101643857B Comprehensive recovery method of complex polymetal sulphide ore containing copper, lead and zinc |
| 05/11/2011 | CN101638731B Method for separating rare earth oxides from rare earth ore by using ammonium chloride-potassium chloride gas phase transmission |
| 05/10/2011 | US7938881 Recycling process for moulded catalyst bodies |
| 05/05/2011 | WO2011010289A3 Aqueous leaching process for recovery of precious metals with addition of dithiooxamide ligand |
| 05/04/2011 | CN201817533U Even flow divider for liquid |
| 05/04/2011 | CN102041394A Process for producing refined bismuth by utilizing bismuth oxychloride |
| 05/04/2011 | CN102041393A Silver anode mud treatment process |
| 05/04/2011 | CN102041388A Method for recycling metal from waste catalyst containing molybdenum and nickel |
| 05/04/2011 | CN102041387A Method for enriching gold and silver by floating anode mud and recycling antimony and bismuth |
| 05/04/2011 | CN102041385A Cobalt removal method for poor cadmium solution in wet-method zinc refining system |
| 05/04/2011 | CN102041384A Synergistic extraction separation method of rare-earth elements |
| 05/04/2011 | CN102041383A Method for online saponification and Ca<2+> removal of extracting agent used for rare earth separation |
| 05/04/2011 | CN102041382A Method for recovering gallium |
| 05/04/2011 | CN102041381A Method for recovering nickel, cobalt, iron, manganese and magnesium from oxidized nickel ore |
| 05/04/2011 | CN102041380A Production process for extracting lithium from ore with low-temperature method |
| 05/04/2011 | CN102041377A Method for recovering iron, vanadium and chromium in vanadium-titanium magnetite concentrate |
| 05/04/2011 | CN101781719B Method for recovering rare earth from oil shale waste slag |
| 05/04/2011 | CN101760654B Method for recovering indium from indium-containing waste |
| 05/04/2011 | CN101693946B Additive and method for extracting vanadium by roasting stone coal ores and preparation method thereof |
| 05/04/2011 | CN101643845B Method for reducing the dosage of caustic solvent in atmospheric straight dipping for nickel concentrate |
| 05/04/2011 | CN101619401B Method for recycling uranium from uranium extraction tailings |
| 05/04/2011 | CN101565777B Method for increasing extraction rate of zinc in ammoniacal liquid |
| 05/04/2011 | CN101560601B Method for improving zinc extraction yield in ammonia solution |
| 05/04/2011 | CN101560600B Method for effectively improving effect of extracting zinc in ammonia solution |
| 05/04/2011 | CN101550488B Method of preparing high pure cathode copper by using PCB acid chlorine copper etching solution sewage |
| 05/04/2011 | CN101526814B Leaching rate prediction and optimization operation method in wet metallurgical leaching process |
| 05/04/2011 | CN101289702B Process for separating molybdenum and nickel form black shale containing molybdenum and nickel |
| 05/04/2011 | CN101220506B Method for high concentration mass-synthesis of silver nano-wire |
| 05/03/2011 | US7935322 Solvent extraction process for separating cobalt and/or nickel from impurities in leach solutions |
| 05/03/2011 | US7935173 Process for recovery of precious metals |
| 05/03/2011 | US7935171 Production of metallic nickel with low iron content |
| 05/03/2011 | CA2666153C Titaniferous ore beneficiation |
| 05/03/2011 | CA2476283C Metal recovery process |
| 04/28/2011 | WO2011049218A1 Method of molybdenum refining |
| 04/28/2011 | WO2011048927A1 Wet smelting plant for nickel oxide ore and method for operating same |
| 04/28/2011 | WO2011047477A1 Leaching process for copper concentrates with a carbon catalyst |
| 04/28/2011 | WO2009069005A3 Microbial pre-treatment of double refractory gold ores |
| 04/28/2011 | DE102008048493B4 Verfahren zur selektiven sauren Entzinkung von Stahlschrotten Process for the selective acidic dezincification of steel scrap |
| 04/28/2011 | CA2775915A1 Hydrometallurgical plant of nickel laterite ore and operation method thereof |
| 04/28/2011 | CA2775051A1 Molybdenum refining method |
| 04/27/2011 | EP2313534A2 A method of treating a sulphide mineral |
| 04/27/2011 | CN201809416U Oxidation equipment for ferrous iron in copper-cobalt ore leaching solution |
| 04/27/2011 | CN201807213U Device for removing oil from solution of copper sulfate |
| 04/27/2011 | CN102037160A Electrochemical process for the recovery of metallic iron and chlorine values from iron-rich metal chloride wastes |
| 04/27/2011 | CN102031391A Method for extracting gold from gold mine tailings |
| 04/27/2011 | CN102031383A Wet process for lead-silver residues |
| 04/27/2011 | CN102031381A Process for preparing sodium pyroantimonate from arsenic- and stibium-containing smoke ash |
| 04/27/2011 | CN102031379A Electro-deposition treatment process for copper separation solution |
| 04/27/2011 | CN102031378A Method for recovering metal silver from waste plasma display panel (PDP) glass plate |
| 04/27/2011 | CN102031373A Method for recycling nickel and copper from electroplating sludge |
| 04/27/2011 | CN102031371A Method for enriching germanium from wet process zinc smelting system |
| 04/27/2011 | CN102031370A Arsenic salt purified cobalt slag seed crystal, and purification method and application thereof |
| 04/27/2011 | CN102031369A Method for extracting uranium by using ion exchange fixed tower under alternate Ph condition |
| 04/27/2011 | CN102031368A Continuous ion exchange device and method for extracting lithium from salt lake brine |
| 04/27/2011 | CN102031367A Method for extracting vanadium from vanadium-containing shale ore |
| 04/27/2011 | CN102031366A Extractive preparation method of high-purity zinc oxide |
| 04/27/2011 | CN101760651B Process for extracting vanadium by acid leaching of stone coal |
| 04/27/2011 | CN101624650B Microwave irradiation-acid leaching vanadium-recovering process of stone coal containing vanadium |
| 04/27/2011 | CN101624648B Reaction system for using NOX to circularly catalyze oxygen to oxidize and pretreat refractory gold ore |
| 04/27/2011 | CN101525696B Method for leaching indium from leaching residue containing indium |
| 04/27/2011 | CN101457296B Method for recovering metallic oxide from waste aluminum base V-Mo-Ni catalyst |
| 04/27/2011 | CN101220418B Method for separating molybdenum, rhenium from molybdenum mineral |
| 04/26/2011 | CA2387633C Chloride assisted hydrometallurgical extraction of metals |