| Patents for C22B 3 - Extraction of metal compounds from ores or concentrates by wet processes (16,429) |
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| 07/21/2009 | CA2366095C Chromium removal from leach liquors produced during high pressure acid leaching of lateritic ores |
| 07/16/2009 | WO2009088605A1 Process for liberating metals using direct production of leach grade acid solutions |
| 07/16/2009 | WO2009087908A1 Method of recycling useful metal |
| 07/16/2009 | WO2009066308A3 Extraction of alumina |
| 07/16/2009 | WO2009013149A3 Method for producing chelate resins |
| 07/16/2009 | CA2706552A1 Process for liberating metals using direct production of leach grade acid solutions |
| 07/15/2009 | EP2078768A1 Method for collection of valuable metal from ito scrap |
| 07/15/2009 | CN101481756A Heat pressing conversion method for laterite nickel ore |
| 07/15/2009 | CN101481755A Method for leaching vanadium from vanadium-containing coal mine |
| 07/15/2009 | CN101481754A Method for separating molybdenum and nickel in molybdenum- and nickel-containing black shale |
| 07/15/2009 | CN100513600C Technique for extracting and separating rare earth elements from non-saponification system |
| 07/15/2009 | CN100513599C Method for bacterially assisted heap leaching of chalcopyrite |
| 07/14/2009 | US7559974 Method for thiosulfate leaching of precious metal-containing materials |
| 07/14/2009 | US7559973 Precious metal recovery using thiocyanate lixiviant |
| 07/14/2009 | US7559971 Method for removal of silver from a copper chloride solution |
| 07/14/2009 | CA2446701C Extraction process |
| 07/09/2009 | WO2009083204A1 Improved method for metal recovery and leaching agent recycle in agitation leach plants |
| 07/09/2009 | CA2711025A1 Improved method for metal recovery and leaching agent recycle in agitation leach plants |
| 07/08/2009 | EP1809778B1 Leaching process in the presence of hydrochloric acid for the recovery of a value metal from an ore |
| 07/08/2009 | CN101476038A Tubular purification method and tubular purification tank |
| 07/08/2009 | CN101476037A Method for synergistic extraction of iron in high-sulphur and high-arsenic gold concentrate leaching solution |
| 07/08/2009 | CN101476036A Method for extracting vanadium by stone coal and sulfuric acid wet pile oxidation conversion at normal temperature and pressure |
| 07/08/2009 | CN101476035A Method for acid hydrolysis oxidative conversion of leached vanadium after stone coal decarbonization |
| 07/08/2009 | CN101476034A Horizontal arranging mode of gold mine carbon-in-leach tank |
| 07/08/2009 | CN101476033A Novel method for leaching, impurity removing and precipitating ion type rare earth ore |
| 07/08/2009 | CN100510125C Ion exchanging method for extracting gallium from alumina production process |
| 07/08/2009 | CN100510124C Method for processing nickel chloride leachate |
| 07/08/2009 | CN100510123C Lixiviation method for treatment substance containing selenium and/or tellurium, and ruthenium and/or rhodium |
| 07/07/2009 | US7556189 Sol-gel process for forming copper-tin-silver solder to bond silicon wafer; reduction of copper, silver and tin precursors in presence of H2 to form a film over pad layer, then bonding silicon wafer |
| 07/07/2009 | CA2459680C Solvent extraction of a halide from an aqueous sulphate solution |
| 07/07/2009 | CA2453364C Heap bioleaching process for the extraction of zinc |
| 07/07/2009 | CA2383812C Recovery of zinc from zinc bearing sulphide minerals by bioleaching and electrowinning |
| 07/07/2009 | CA2329293C Process for preparing crosslinked ion exchangers based on unsaturated aliphatic nitriles |
| 07/02/2009 | WO2009079716A1 Laterite heap leaching with ferrous lixiviants |
| 07/02/2009 | WO2009079715A1 Selectively leaching cobalt from lateritic ores |
| 07/02/2009 | WO2009063482A3 Extraction of alumina |
| 07/01/2009 | EP2074234A2 Pre-treatment of feed to non-stirred surface bioreactor |
| 07/01/2009 | EP2074233A2 Accelerated heat generation in heap bioleaching by controlled carbon dioxide addition |
| 07/01/2009 | EP1499752B1 Sulfuric acid beneficiation of titaniferous ore for the production of tio2 |
| 07/01/2009 | CN201265031Y 动力装置 Power plant |
| 07/01/2009 | CN101469368A Separation and purification technique for strontium-89 extracted from homogeneous water solution nuclear reactor gas loop |
| 07/01/2009 | CN101469367A Method for recycling titanium dioxide acid hydrolysis residue |
| 07/01/2009 | CN100507029C Method of extracting and enriching gold (I) from cyaniding gold containing leaching solution |
| 06/25/2009 | WO2009013142A3 Chelate resin |
| 06/24/2009 | EP1623049B1 Recovery of platinum group metals |
| 06/24/2009 | CN101463425A Method for extraction separation of indium and tin from indium-tin mixing solution |
| 06/24/2009 | CN101463424A Method for extracting valuable metal from heavy metal-enriched hyper-accumulator |
| 06/24/2009 | CN100503850C Process for extracting calcium-magnesium ion from solid slag containing calcium-magnesium with ultrasonic assistance |
| 06/24/2009 | CN100503849C Method for producing refined lithium sulfate solution used in lepidolite lithium-extracting technique by sulfuric acid process |
| 06/24/2009 | CN100503848C Vitriol intensified leach extraction method for nickel oxide ore |
| 06/18/2009 | US20090152777 Method for manufacturing a mixer-settler and a mixer-settler |
| 06/17/2009 | EP2069433A1 An ion exchange resin and a process for the use thereof |
| 06/17/2009 | CN101457295A Dechlorination method in zinc hydrometallurgy circulation solution system |
| 06/17/2009 | CN101457294A Method for eliminating interface emulsification during copper biochemical lixivium extraction process |
| 06/17/2009 | CN101457293A Method for chlorides from zinc alkali solution |
| 06/17/2009 | CN101457292A Process for recovering nickel ion from biochemical lixivium of laterite nickel mine by using room temperature ion liquid |
| 06/17/2009 | CN100500891C Leaching iron removal trough for copper cobalt alloy separation and reclamation |
| 06/17/2009 | CN100500890C Plant arsenic-extraction pretreatment method for lowering smelting selection cost of high-arsenic gold ore |
| 06/16/2009 | US7547426 Production of lithium compounds directly from lithium containing brines |
| 06/16/2009 | US7547348 Method for the recovery of metals using chloride leaching and extraction |
| 06/11/2009 | WO2009071006A1 A method of manufacturing v product utilizing fluidization technology |
| 06/10/2009 | EP2067748A1 Process for producing iron arsenide compound with good crystallinity |
| 06/10/2009 | EP2066819A1 Recovery of molybdenum from molybdenum bearing sulfide materials by bioleaching in the presence of iron |
| 06/10/2009 | CN101451188A Method for separating and purifying cobalt solution by extraction chromatography |
| 06/10/2009 | CN101451187A Comprehensive recovery method of gold ore resource containing molybdenum multi-metal |
| 06/10/2009 | CN101450950A Tetracyclic heterocompounds as estrogen receptor modulators |
| 06/10/2009 | CN100497676C Solid phase extraction process for extracting and separating palladium |
| 06/10/2009 | CN100497675C Method for separating and reclaiming vanadium and chromium from solution containing vanadium and chromium |
| 06/10/2009 | CN100497674C Method for processing cunico |
| 06/10/2009 | CN100497673C leaching method of electrolyzing chlorine or chloride compound and its apparatus |
| 06/10/2009 | CN100497672C Method for enriching noble metals from noble antimonial alloy |
| 06/09/2009 | US7544232 Using thiosulfate lixiviants, contains at most only small amounts of toxic copper and/or ammonia and operate at a relatively low pH, reduction of polythionates, inert atmospheres to control polythionate production, and electrolytic solutions which provide high rates of precious metal recovery |
| 06/09/2009 | US7544231 From cyanide solution or leachate via precipitation; ion exchanging |
| 06/09/2009 | CA2332520C Hydrometallurgical treatment process for extraction of platinum group metals obviating the matte smelting process |
| 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 |
| 06/04/2009 | CA2705487A1 Microbial pre-treatment of double refractory gold ores |
| 06/03/2009 | EP2065488A1 Method for collection of valuable metal from ito scrap |
| 06/03/2009 | EP2064356A1 A sulfate process |
| 06/03/2009 | EP2064355A1 A sulfate process |
| 06/03/2009 | CN100494422C Dipping process for tailing containing gold |
| 05/30/2009 | CA2645283A1 A polymeric chelating agent and method of using same |
| 05/28/2009 | WO2009067128A2 Liquid-liquid extraction method and apparatus |
| 05/28/2009 | WO2009067039A1 Method for extracting precious metals from refractory ores and concentrates |
| 05/28/2009 | WO2009066308A2 Extraction of alumina |
| 05/27/2009 | EP1922422A4 Process for recovering platinum group metals, rhenium and gold |
| 05/27/2009 | CN101443466A Process for recovery of antimony and metal values from antimony- and metal value-bearing materials |
| 05/27/2009 | CN101440434A Technique for extracting copper from high-calcium high-magnesium cupric sulfide by wet method |
| 05/27/2009 | CN101440431A Method for removing cobalt in high-cobalt zinc sulfate solution |
| 05/27/2009 | CN101440430A Method for recycling rare earth from phosphogypsum leaching solution by fluoride precipitation method |
| 05/27/2009 | CN100491552C Integrated ammoniacal solvent extraction and hydrogen reduction of nickel |
| 05/27/2009 | CN100491549C Method for extracting high-valence manganese from manganese carbonate ore |
| 05/26/2009 | US7537741 Gold and silver recovery from polymetallic sulfides by treatment with halogens |
| 05/26/2009 | US7537640 Leaching gold with dissolved thiocyanate and dissolved ferric iron producing precious metal-thiocyanate complex, reducing ferric iron to dissolved ferrous iron; introducing dissolved cyanide and converting to precious metal-cyanide complex |
| 05/26/2009 | CA2406436C Materials and method for the biological production of sulfuric acid |
| 05/26/2009 | CA2367651C Control of lead nitrate addition in gold recovery |
| 05/22/2009 | WO2009063482A2 Extraction of alumina |
| 05/22/2009 | WO2009063128A1 Settler arrangement for liquid-liquid extraction, equipment to be placed in the settler op liquid-liquid extraction and method for installing the equipment |
| 05/21/2009 | US20090126532 High temperature heap bioleaching process |
| 05/21/2009 | US20090126530 Method and equipment for treating process gas |