| Patents for C22B 3 - Extraction of metal compounds from ores or concentrates by wet processes (16,429) |
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| 10/04/2007 | US20070227903 Precious Metal Recovery |
| 10/03/2007 | EP1840231A1 Method for recovering Rh |
| 10/03/2007 | EP1838883A1 Reduction of lime consumption when treating refractory gold ores or concentrates |
| 10/03/2007 | EP1627087B1 A process for the recovery of value metals from material containing base metal oxides |
| 10/03/2007 | CN101045962A Method of reclaiming platinum from selenium-containing waste liquid using hydrazine |
| 10/03/2007 | CN101045961A 铑的回收方法 Rhodium recovery method |
| 10/03/2007 | CN101045960A Low temperature bauxite leaching process |
| 10/03/2007 | CN101045959A Method for recovering rh |
| 10/03/2007 | CN101045958A Lixiviation method for treatment substance containing selenium and/or tellurium, and ruthenium and/or rhodium |
| 10/03/2007 | CN101045957A Process of producing polyiron silicosulfate with steel slag and water granulated slag |
| 10/03/2007 | CN101045947A Alkali exciting and comprehensively utilizing process of iron-containing furnace dust |
| 10/03/2007 | CN100340680C Method for inhibiting scale-forming during the process of leaching nickle from nickle-contg. laterate by sulfuric acid |
| 10/03/2007 | CN100340679C Separation method of indium tin mixture |
| 09/27/2007 | WO2007106969A1 Process for recovering value metal species from laterite-type feedstock |
| 09/26/2007 | EP1278605A4 Materials and method for the biological production of sulfuric acid |
| 09/26/2007 | CN200951330Y Organic phase circulation tank with stable liquid level for extraction separation use |
| 09/26/2007 | CN101044110A Particular calixarenes method for production and use thereof |
| 09/26/2007 | CN100339495C Method for recovering useful element from rare earth - transition metal alloy scrap |
| 09/26/2007 | CN100339494C A process for reclaiming phosphorus |
| 09/26/2007 | CN100339493C Treatment of base metal concentrate |
| 09/20/2007 | WO2007105714A1 Method of recovering rare earth element from composition containing rare earth fluoride |
| 09/20/2007 | WO2007104106A1 Mineral extraction system and process |
| 09/20/2007 | CA2645098A1 Mineral extraction system and process |
| 09/19/2007 | EP1834002A1 Use of surfactants in the production of metal |
| 09/19/2007 | EP1834001A1 Method for the hydrometallurgical treatment of sulfide concentrate containing several valuable metals |
| 09/19/2007 | CN101040058A Pressure leaching system and method |
| 09/19/2007 | CN101037726A Comprehensive utilization method of titanium-containing melting furnace slag |
| 09/19/2007 | CN101037725A Method for treating arsenic pollution of copper smelt industry |
| 09/19/2007 | CN101037724A Dephosphorization method of phosphorus-containing iron ore |
| 09/19/2007 | CN101037723A Carbonate deposition method of crystal type heavy rare earth |
| 09/19/2007 | CN101037722A Method for preparing puddling iron concentrate by high-alumina iron ore |
| 09/19/2007 | CN101037721A Ion-aluminum separation technique of high-alumina brown iron ore |
| 09/19/2007 | CN101036915A Environment-protecting type filament of electric light source processor and the processing technique |
| 09/19/2007 | CN101036874A Copoly(1,8-diaminonaphthalene) used as golden iron adsorption agent |
| 09/19/2007 | CN100338240C Method for removing thallium from a zinc-containing solution |
| 09/18/2007 | US7270728 Photochemical transformation of metallic and non-metallic ions in an aqueous environment |
| 09/18/2007 | CA2439970C Recovery of metals from jarosite-containing materials |
| 09/17/2007 | CA2538962A1 Process for recovering value metal species from laterite-type feedstock |
| 09/13/2007 | WO2007103421A2 Method of preparing ceramic powders using chelate precursors |
| 09/13/2007 | WO2007103083A2 Extraction of lithium from lithium bearing minerals by caustic leaching |
| 09/13/2007 | WO2007102207A1 Process for producing indium-containing metal |
| 09/13/2007 | US20070210000 Method and Apparatus for Purification of an Aqueous Solution from Droplets of Extraction Solution |
| 09/13/2007 | US20070209481 Process for extraction of nickel, cobalt, and other base metals from laterite ores by using heap leaching and product containing nickel, cobalt, and other metals from laterite ores |
| 09/13/2007 | US20070209479 Method And Apparatus For Reducing Metal-Oxygen Compounds |
| 09/13/2007 | CA2644092A1 Extraction of lithium from lithium bearing minerals by caustic leaching |
| 09/12/2007 | EP1831412A1 Platinum recovery from fuel cell stacks |
| 09/12/2007 | EP1831411A1 Extraction process for metals like gold and platinum incl. fine grinding , pulping and oxygenating |
| 09/12/2007 | EP1537247B1 Metal compound removal |
| 09/12/2007 | CN101033509A Bacteria underground heap leaching process for copper ore |
| 09/12/2007 | CN101033508A Method of preparing high purity copper by bacteria leaching primary sulfide ore |
| 09/12/2007 | CN101033507A Flotation and bacteria leaching combined treatment process for low grade lead, antimony and zinc sulfide ore |
| 09/12/2007 | CN101033506A Method of directly leaching zinc ore concentrate or low grade mixing zinc ore under normal pressure and alkaline condition |
| 09/12/2007 | CN101033505A Method of leaching valuable metal from anode sludge with high content of antimony, bismuth and copper |
| 09/12/2007 | CN101033504A Method of purifying cerium by controlling pH |
| 09/12/2007 | CN100336920C Method for directly preparing high-purifying product by barium sulphide black grey water immersion |
| 09/12/2007 | CN100336919C Treatment method for manganese contained material by hydrometallurgy process |
| 09/11/2007 | US7268273 Recovering metals from soil |
| 09/07/2007 | WO2007100847A2 Method for improving the recovery and purity of cesium-131 from irradiated barium carbonate |
| 09/07/2007 | WO2007099536A2 Radioactive metal-bound beads |
| 09/07/2007 | WO2007099119A1 Process for the acid digestion of metal-containing compounds |
| 09/07/2007 | WO2007098613A1 Recovery process for precious metals |
| 09/07/2007 | WO2007098603A1 Process for extracting gold from gold-bearing ore |
| 09/07/2007 | CA2644671A1 Process for the acid digestion of metal-containing compounds |
| 09/07/2007 | CA2644407A1 Process for extracting gold from gold-bearing ore |
| 09/07/2007 | CA2641626A1 Recovery process for precious metals |
| 09/05/2007 | EP1791627A4 Mixing apparatus |
| 09/05/2007 | CN101029357A Method for managing, circulating and utilizing nitronic oxide during golden smelting process |
| 09/05/2007 | CN101029355A Method for producing nano-magnetic FeO particle by iron extracted and utilized in tin tails |
| 09/05/2007 | CN101029354A Method for purifying golden and silver by fast wetting optimization |
| 09/05/2007 | CN101029353A Comprehensive extraction of valent metal from bismuth-containing polymetallic material |
| 09/05/2007 | CN101028610A Iron-removing concentrating process of potash feldspar |
| 09/04/2007 | US7264736 Removal of non-water soluble substances from solutions of aqueous metal extracts |
| 09/04/2007 | US7264733 Method for treating heavy-metal-containing wastewater using sulfidizing agent |
| 08/30/2007 | WO2007095689A1 Hematite precipitation at elevated temperature and pressure |
| 08/30/2007 | US20070202025 Method For Recovery Of Palladium |
| 08/30/2007 | US20070202024 Phase transformation in molecular solids |
| 08/30/2007 | CA2641919A1 Hematite precipitation at elevated temperature and pressure |
| 08/29/2007 | EP1825010A1 Consecutive or simultaneous leaching of nickel and cobalt containing ores |
| 08/29/2007 | EP1778883A4 Method for nickel and cobalt recovery from laterite ores by combination of atmospheric and moderate pressure leaching |
| 08/29/2007 | CN101024864A Method for recovering gold and copper from gold-plated printed circuit board waste material |
| 08/29/2007 | CN101024507A Process for preparing superfine high-purity europium oxide by using europium riched material |
| 08/29/2007 | CN101024506A Process for preparing superfine, high-purity praseodymium oxide by using Pr-Nd riched materials |
| 08/29/2007 | CN101024505A Method for preparing super-fine high-purity Neodymia oxide by using Pr-Nd riched material |
| 08/29/2007 | CN101024504A Method for preparing superfine high-purity cerium oxide by using rear earth ore sulfuric acid calcination products |
| 08/29/2007 | CN100334237C Reproducing method for carrier gold activated carbon |
| 08/29/2007 | CN100334236C Comprehensive recovery for bullion ore with various metals |
| 08/29/2007 | CN100334197C Zinc sulfide ore leaching bacteria breeding method |
| 08/23/2007 | WO2007093667A1 Method for recovering copper from a copper sulphide ore |
| 08/23/2007 | WO2007093666A1 Method for recovering gold |
| 08/23/2007 | WO2007092994A1 Processing of laterite ore |
| 08/23/2007 | US20070193414 Use of liquid-crystal displays, and processes for the recycling thereof |
| 08/23/2007 | US20070193413 Heap bioleaching process for the extraction of zinc |
| 08/23/2007 | CA2642673A1 Method for recovering copper from a copper sulphide ore |
| 08/23/2007 | CA2642618A1 Method for recovering gold |
| 08/23/2007 | CA2640550A1 Processing of laterite ore |
| 08/22/2007 | CN1333092C Mixed ammonia leaching method for multi-metal concretion and cobalt-rich skull in deep sea |
| 08/22/2007 | CN1333090C Organic phase fluorine removing method after bastnaesite oxidation roasting-sulfuric acid leaching-extracting |
| 08/22/2007 | CN1333089C Method for processing cobalt copper alloy |
| 08/22/2007 | CN101020970A Process of extracting Cr-V oxide from high Cr, V and magnetite ore |
| 08/22/2007 | CN101020964A Solid phase extraction process for extracting and separating palladium |