| Patents for C22B 3 - Extraction of metal compounds from ores or concentrates by wet processes (16,429) |
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| 09/03/2009 | WO2009106660A1 Method for the recovery of germanium in solution by means of complexing and use of ion-exchange resins |
| 09/03/2009 | WO2009105832A1 Selective gold extraction from copper anode slime with an alcohol |
| 09/03/2009 | CA2709912A1 Multi-column sequenced separation process for separating an ionic metal derivative |
| 09/02/2009 | CN201301332Y Reaction device heated by solar energy |
| 09/02/2009 | CN201301331Y A block-type detachable separator for horizontal pressure reactor |
| 09/02/2009 | CN101522925A Oxidative and anoxic extraction of metals from sulphide minerals |
| 09/02/2009 | CN101519723A Clean production process for extracting vanadium in carbonaceous shale containing vanadium by hot press oxidation method |
| 09/02/2009 | CN100535139C Method for reclaiming indium and tin from ITO waste material by pickling-vulcanization deposition combined technique |
| 09/01/2009 | US7582136 Gold is precipitated from the solution using a weak acid, (e.g. ascorbic acid), a buffer, (e.g. sodium bicarbonate), and a dye; precipitate is then removed from the solution; reclamation of an etchant solution; cost efficiency |
| 09/01/2009 | CA2388990C A method of operating a bioleach process with control of redox potential |
| 08/27/2009 | WO2009103850A1 Method for separating zinc, iron, calcium, copper and manganese from the aqueous solutions of cobalt and/or nickel |
| 08/27/2009 | US20090214414 solid lithium chloride containing less than 15 ppm sodium as an impurity; low sodium lithium carbonate and lithium chloride produced from a brine concentrated to about 6.0 wt % lithium |
| 08/27/2009 | DE10249520B4 Lösen von Sammlerlegierungen auf Eisenbasis mit Hilfe des Systems Fe 3+/Cl2 Solving collectors iron-base alloys using the system Fe 3 + / Cl2 |
| 08/27/2009 | CA2715470A1 Method for separating zinc, iron, calcium, copper and manganese from the aqueous solutions of cobalt and/or nickel |
| 08/26/2009 | EP1383934B1 Removal of non-water soluble substances from solutions of aqueous metal extracts |
| 08/26/2009 | CN201295551Y Adsorption column flushing device |
| 08/26/2009 | CN101514403A Method for volatilizing and enriching molybdenum from molybdenum tailings |
| 08/26/2009 | CN101513602A Acidolysis reaction technology |
| 08/26/2009 | CN100532595C Method for decomposing hamartite |
| 08/26/2009 | CN100532594C Reclamation of germanium from chromium-germanium alloy waste material by wet method |
| 08/26/2009 | CN100532591C Method of removing arsenic for anode mud with high arsenic and lead content |
| 08/25/2009 | CA2650372A1 Wet process for smelting nickel oxide ore |
| 08/20/2009 | WO2009103025A2 Reactor for extracting metals from metal sulfide containing materials and methods of use |
| 08/20/2009 | WO2009101926A1 Rare metal extracting agent |
| 08/20/2009 | WO2009101864A1 Method of recovering valuable metals from izo scrap |
| 08/20/2009 | WO2009101863A1 Method of recovering valuable metals from izo scrap |
| 08/20/2009 | WO2009100602A1 A method for extracting ni and co from laterite using hydrochloric acid |
| 08/20/2009 | US20090209027 Introduction of microorganisms in bio-assisted heap leaching operations |
| 08/19/2009 | EP1825010A4 Consecutive or simultaneous leaching of nickel and cobalt containing ores |
| 08/19/2009 | EP1496063B1 Extraction process for rare earth metal ions using a phosphonamide compound |
| 08/19/2009 | CN101511736A Process for producing iron arsenide compound with good crystallinity |
| 08/19/2009 | CN101509083A Method for extracting zinc from flue dust of copper revolving furnace |
| 08/19/2009 | CN101509078A Innocent treatment and reclamation utilization method for flying ash of garbage cremator |
| 08/19/2009 | CN101509075A Method for separating copper and manganese from copper-manganese solution with high degree of acidity |
| 08/19/2009 | CN101509074A Method for purifying and removing silicon and aluminum from nitric rare earth feed liquid |
| 08/19/2009 | CN101509073A Solvent extraction of ferronickel powder and waste liquor processing method |
| 08/19/2009 | CN101509072A Method for extracting valuable metals from laterite nickel mine with hydrochloric acid full-closed circulation method |
| 08/19/2009 | CN101509071A Method for recycling value metal from lithium cell slag containing Co, Ni, Mn |
| 08/19/2009 | CN101509070A Method for acid leaching extraction of vanadium from vanadium-containing raw material |
| 08/19/2009 | CN101509069A Method for selective solvent extraction of heterogenite with full-wet-process |
| 08/19/2009 | CN101509068A Infiltration treatment process for ore containing copper |
| 08/19/2009 | CN101508469A Synthesis of active ferrous sulphide and uses thereof |
| 08/19/2009 | CN100530813C Method of disposing of lithium battery |
| 08/19/2009 | CN100529127C Use of surfactants in the production of metals |
| 08/19/2009 | CN100529124C Method for deeply removing arsenic from copper sulfate solution |
| 08/19/2009 | CN100529123C Method of acidic extractant complexing extraction separation rare-earth element |
| 08/19/2009 | CA2622385A1 Alkalinity exchange process for improving the extraction of precious and rare metals |
| 08/18/2009 | US7575711 Apparatus for producing nano-particles of silver |
| 08/18/2009 | US7575629 Pollutant emission control sorbents and methods of manufacture |
| 08/18/2009 | US7575623 Method for leaching aluminium-metal alloys |
| 08/18/2009 | US7575622 Heap leach process |
| 08/18/2009 | CA2189535C Liquid treatment method and system |
| 08/12/2009 | EP2086885A1 Selective precipitation of metal sulfides |
| 08/12/2009 | EP1917083A4 Apparatus for production, withdrawal and transfer of highly viscous slurry |
| 08/12/2009 | EP1880029A4 An improved process for heap leaching of nickeliferous oxidic ores |
| 08/12/2009 | CN201286992Y Purification and filtration device of extract liquid |
| 08/12/2009 | CN101506395A Chloride tank leaching |
| 08/12/2009 | CN101506394A Production of metallic nickel with low iron content |
| 08/12/2009 | CN101503762A Desulphurization and vanadium extraction technique for calcinated vanadium ore |
| 08/12/2009 | CN101503761A Method for separating and recycling valuable metal from pressure leached high sulphur slag |
| 08/12/2009 | CN101503760A Method for extracting zinc from zinc oxide ore ammonia leaching solution |
| 08/12/2009 | CN101503362A Production process of tri-n-octyl methyl ammonium chloride |
| 08/12/2009 | CN101503350A Method for recycling acid and valuable metal from oxalic acid wastewater |
| 08/12/2009 | CN100526489C Technique for reclaiming vanadium and iron from high-vanadium high-iron steel slag |
| 08/12/2009 | CN100526486C Method of oxidizing transforming leaching vanadium from stone coal under pressure field |
| 08/11/2009 | US7572317 Thiosulfate leaching where thiosulfate lixiviant is generated in situ employing elemental sulfur generated from partial oxidation of sulfidic precious metal-bearing feed and/or employing reactants from processing effluents |
| 08/06/2009 | WO2009094732A1 Process for the recovery of precious metals from used and/or defective catalytic carriers |
| 08/06/2009 | CA2712320A1 Process for the recovery of precious metals from used and/or defective catalytic carriers |
| 08/05/2009 | CN101501227A Cavitation process for titanium products from precursor halides |
| 08/05/2009 | CN101497942A Biological leaching-solvent extraction-electrodeposition recovering method for heavy metal copper in sludge |
| 08/05/2009 | CN101497941A Ammonia-free thiosulfate solution for leaching silver from ore |
| 08/05/2009 | CN101497940A Process for leaching silver from ore by ammonia-free thiosulfate solution |
| 08/05/2009 | CN100523232C Highly effective composite basic additive for extracting vanadium and synchronously fixing chlorine |
| 08/04/2009 | CA2438016C Process for electrolytic production of ultra-pure zinc or zinc compounds from zinc primary and secondary raw materials |
| 08/04/2009 | CA2353875C Composition of oxime and hydroxy-ester for the solvent extraction of metals |
| 08/04/2009 | CA2224218C Method for recovering nickel from high magnesium-containing ni-fe-mg lateritic ore |
| 07/30/2009 | WO2009093730A1 Method of recovering noble metals and recovering system for noble metals |
| 07/30/2009 | WO2009052362A3 Azetidinium-functional polysaccharides and uses thereof |
| 07/29/2009 | EP2082071A1 Method for the purification of radium from different sources |
| 07/29/2009 | EP1794331A4 Production of ferro-nickel or nickel matte by a combined hydrometallurgical and pyrometallurgical process |
| 07/29/2009 | EP1663435B1 Method and equipment for purifying an extraction solution from aqueous entrainment and impurities |
| 07/29/2009 | EP1613784B1 Composition and process for the solvent extraction of metals using aldoxime or ketoxime extractants |
| 07/29/2009 | CN201280583Y Connection structure of horizontal pressurized kettle fixed partition plate |
| 07/29/2009 | CN201280582Y Anaerobic leaching pressurized kettle stirrer |
| 07/29/2009 | CN201280581Y Aerobic leaching pressurized kettle stirrer |
| 07/29/2009 | CN101495659A Recovery of molybdenum from molybdenum bearing sulfide materials by bioleaching in the presence of iron |
| 07/29/2009 | CN101492772A Fluorine and chlorine removal process for zinc metallurgy industrialization ion exchange process with wet-process |
| 07/29/2009 | CN101492771A Hingganite ore concentrate decomposition method |
| 07/29/2009 | CN101492770A Plant arsenic-removing pretreatment method for recycling golden from high-arsenic golden mine tailing |
| 07/29/2009 | CN100519783C Technique for comprehensive utilization clean production of phosphorus block ore and extracting rare earth form the phosphorus block ore |
| 07/23/2009 | WO2009092023A1 Method and apparatus for electrowinning copper using an atmospheric leach with ferrous/ferric anode reaction electrowinning |
| 07/23/2009 | WO2009090774A1 Method and apparatus for removing/recovering copper from copper-containing acidic waste liquid and process for producing copper-containing substance |
| 07/23/2009 | WO2009089613A1 Liquid and solid effluent treatment process |
| 07/23/2009 | CA2712274A1 Method and apparatus for electrowinning copper with ferrous/ferric anode reaction electrowinning |
| 07/23/2009 | CA2707830A1 Liquid and solid effluent treatment process |
| 07/22/2009 | CN100516252C Method for treating oxidized copper ore |
| 07/22/2009 | CN100516251C Producing ferronickel or nickel through wet metallurgical and fire metallurgical combined method |
| 07/21/2009 | US7563429 spent mass is treated with a hydrogen peroxide for leaching out selenium content from unspent active substance present in the filter mass to form selenious acid, treating with aqua regia to dissolve mercury selenide, separating aqua regia solution conatining HgSe, adding Na2s to form HgS, separting HgS |
| 07/21/2009 | US7563421 Hydrometallurgical process of nickel oxide ore |
| 07/21/2009 | US7563304 Adding carbon in the form of a carbonate, carbon dioxide or organic carbon such as molasses, yeast or yeast extract to raise the temperature when carbon supply becomes limiting to microbial activity; sulfur oxidation, heat generation |