| Patents for C22B 15 - Obtaining copper (5,364) |
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| 07/18/2007 | CN100999782A Comprehensive recovering process of multimetal sulfide mineral |
| 07/17/2007 | CA2177121C Method and apparatus for feeding reaction gas and solids |
| 07/12/2007 | WO2007077290A1 Method for improving sulphidic concentrate leaching |
| 07/11/2007 | EP1805336A1 Process for recovery of copper from copper-bearing material using pressure leaching, direct electrowinning and solvent/solution extraction |
| 07/11/2007 | CN1325673C Device for producing oxygen less copper utilizing waste red copper |
| 07/03/2007 | CA2272857C Improved leaching of mineral ores |
| 06/27/2007 | EP1801246A2 Method and installation for separating metal/plastic composites in recycling spent electrical appliances |
| 06/27/2007 | CN1986851A Two-section roasting production process for recovering Au, Cu, Ag, As and s from As and C containing aurin ore |
| 06/27/2007 | CN1986850A Sulfur slag vacuum volatilizing process for enriching noble metal |
| 06/26/2007 | US7234235 Wire processing method of cross-linking coated wire |
| 06/21/2007 | WO2007068193A1 A process for recovering and recycling of waste ammoniacal alkaline copper etchant by using metallic aluminum |
| 06/20/2007 | CN1322151C Metallurgy extraction method by wet method with chloride assistance |
| 06/14/2007 | WO2007066350A1 A process for recovery of iron from copper slag |
| 06/14/2007 | US20070131059 Recovery of nickel |
| 06/14/2007 | CA2632530A1 A process for recovery of iron from copper slag |
| 06/13/2007 | EP1451380B1 Process for the treatment of molybdenum concentrate also containing copper |
| 06/13/2007 | CN1321200C Method for separating copper, arsenic and zinc from copper-smelting high-arsenic flue dust sulphuric acid leach liquor |
| 06/12/2007 | CA2234989C Production of high purity copper from primary or secondary sulfides |
| 06/07/2007 | US20070125199 High Temperature Heap Bioleaching Process |
| 06/07/2007 | US20070125198 Process for engineered ion exchange recovery of copper and nickel |
| 06/06/2007 | CN1320138C Improved heap leach |
| 06/06/2007 | CN1320137C Compound leaching agent and leaching method for leaching out copper pyrite using compound leaching agent |
| 05/31/2007 | US20070119277 Methods for processing crushed solids with a liquid within a vessel |
| 05/30/2007 | CN1318617C Heap leach process |
| 05/23/2007 | CN1966744A Energy-saving and environmental-protection refining furnace |
| 05/23/2007 | CN1966741A Method for treating oxidized copper ore |
| 05/23/2007 | CN1317404C Extraction process |
| 05/09/2007 | EP1337800B1 Cooling element |
| 05/09/2007 | CN1960826A Copper-containing tin powder and method for producing the copper-containing tin powder, and electroconductive paste using the copper-containing tin powder |
| 05/08/2007 | US7214516 Adding an enhancing-bacteria to the soil and planting a metal-extracting plant in the soil, wherein the ability of the metal-extracting plant to extract metal present in the soil is enhanced by the presence of the enhancing-bacteria |
| 05/08/2007 | US7214256 comprise circuit configuration for a plant with coutercurrent extraction stages and stripping section |
| 05/02/2007 | CN1957098A Process for copper converting |
| 04/26/2007 | WO2007045034A1 Process for recovery of metal values from materials containing arsenic and/or antimony |
| 04/25/2007 | CN1952189A Rotary type anode furnace process technology for refining fuel coal by copper matte smelting process |
| 04/24/2007 | US7207101 Wire processing apparatus |
| 04/19/2007 | WO2007042604A1 A method for leaching metal sulphide minerals |
| 04/17/2007 | CA2278043C Method for initiating heap bioleaching of sulfidic ores |
| 04/17/2007 | CA2142639C Method and apparatus for suspension smelting |
| 04/12/2007 | WO2007039664A1 Sodium chloride processing of nickel sulphide ore or concentrates |
| 04/12/2007 | WO2007039663A1 Processing of nickel sulphide ore or concentrates with sodium chloride |
| 04/12/2007 | CA2624609A1 Processing of nickel sulphide ore or concentrates with sodium chloride |
| 04/11/2007 | EP1772212A1 Copper-containing tin powder and method for producing the copper-containing tin powder, and electroconductive paste using the copper-containing tin powder |
| 04/11/2007 | CN1310005C Apparatus for removing dust accretions from a smelting furance |
| 04/11/2007 | CN1309849C Method of dearsenic by parallel circulating continuous electric formation |
| 04/04/2007 | EP1769093A1 Optimization of bioleaching process |
| 04/04/2007 | EP1289628B1 Acid stable membranes for nanofiltration |
| 04/04/2007 | CN1940099A Process for treatment of waste materials and/or slime containing copper and precious metal |
| 03/28/2007 | CN1938437A Heap bioleaching process |
| 03/28/2007 | CN1938436A Recovery of metals from oxidised metalliferous materials |
| 03/22/2007 | US20070062335 Method for processing anode sludge |
| 03/21/2007 | EP1370700A4 Metal ion extraction materials and processes using same |
| 03/21/2007 | EP1366202B1 A method for the bacterially assisted heap leaching of chalcopyrite |
| 03/21/2007 | CN1933906A Deposition of dispersed metal particles onto substrates using supercritical fluids |
| 03/14/2007 | CN1304611C Method for removal of silver from a copper chloride solution |
| 03/13/2007 | US7189527 via leaching with culture of sulfobacillus and thermoplasma strains |
| 03/13/2007 | CA2383818C Recovery of nickel and copper from sulphide concentrates by bioleaching |
| 03/08/2007 | WO2007025317A1 Method for separating impurities out of feed stock in copper melts |
| 03/08/2007 | DE102005039999A1 Herstellung reiner Metalle, von Metallgemischen und/oder Metalllegierungen in Form von Nanopartikeln und -strukturen mittels Cellulosefasern Production of pure metals, metal mixtures and / or metal alloys in the form of nanoparticles and structures by means of cellulose fibers |
| 03/07/2007 | EP1759024A1 Process for copper converting |
| 03/07/2007 | CN1303235C Dressing and smelting united technology for processing refractory copper zinc ore mixtures |
| 03/01/2007 | US20070048203 removal of Cu from a concentrated chloride-containing ZnSO4 raw solution that is going to an electrolytic preparation of zinc, using chelating alkyl-silylated silica-based ion exchanger having polyamine group, comprising routing raws solution to an ion exchange stage; purifying copper free raw solution |
| 02/28/2007 | CN1920071A Method of coproducing modified polyiron from copper extracted PCB acid etching waste liquid |
| 02/28/2007 | CN1302132C Introduction of microorganisms in bio-assisted heap leachingoperations0 |
| 02/28/2007 | CN1301910C High purity copper sulfate and method for production thereof |
| 02/22/2007 | US20070042482 Sulfur-oxidizing bacteria and their use in bioleaching processes for sulfured copper minerals |
| 02/22/2007 | US20070042312 Industrial furnace |
| 02/22/2007 | US20070041884 Resin and process for extracting non-ferrous metals |
| 02/22/2007 | US20070039420 During metal recovery from an ore, a seeding agent is introduced to provide a nucleation site for the crystallization and/or growth of solid species which otherwise tend to passivate the reactive process or encapsulate the metal value |
| 02/21/2007 | CN1918309A Bacterial oxidation of sulphide ores and concentrates |
| 02/21/2007 | CN1301338C Novel copper recovery method by copper anode mud pressurization and pickling |
| 02/14/2007 | CN1300351C Operation method of refining raw copper with fire |
| 02/08/2007 | US20070028721 Treatment of base metal concentrate by a two-step bioleaching process |
| 02/07/2007 | CN1910298A Supply system for suspension smelting furnace |
| 02/07/2007 | CN1908208A Technique of comprehensive recovering valuable metal in chlorine-oxygen-antimony slag |
| 02/01/2007 | US20070022843 Recovery of platinum group metals |
| 01/31/2007 | CN1904142A Copper extraction method of etching waste liquid or low copper containing waste liquid |
| 01/30/2007 | US7169371 Process for the treatment of molybdenum concentrate |
| 01/23/2007 | US7166144 Contacting an organic phase comprised of a water insoluble and water immiscible solvent solution of an extraction reagent; contacting partially loaded organic phase with aqueous metal bearing solution to form a metal depleted aqueous raffinate solution; contacting aqueous metal bearing solution |
| 01/23/2007 | US7165680 Selective flotation agent and flotation method |
| 01/17/2007 | CN1898252A Process for the agglomeration and passivation of waste material or fines from an organohalo-silane process |
| 01/17/2007 | CN1295364C Method for the production of blister copper |
| 01/09/2007 | US7160354 High temperature heap bioleaching process |
| 01/03/2007 | EP1656464B1 Method for the pyrometallurgical production of copper in a converter |
| 01/02/2007 | US7157064 Preparing an aqueous suspension of the solid or semisolid waste material, separating the solid and liquid material to obtain solid waste and liquid waste solution, collecting solid waste, repeating above steps, acidifying liquid waste |
| 12/26/2006 | US7152741 Use of ozone to increase the flotation efficiency of sulfide minerals |
| 12/21/2006 | WO2006134724A1 Ultrahigh-purity copper and process for producing the same, and bonding wire comprising ultrahigh-purity copper |
| 12/21/2006 | DE102006022780A1 Verfahren zur Reduktion und/oder Reinigung einer ein Metall enthaltenden Schlacke A process for the reduction and / or purification of a a metal-containing slag |
| 12/21/2006 | DE102006022779A1 Verfahren und Vorrichtung zur Gewinnung eines Metalls aus einer das Metall enthaltenden Schlacke Method and apparatus for extracting a metal from a slag containing the metal |
| 12/20/2006 | EP1732684A1 Deposition of dispersed metal particles onto substrates using supercritical fluids |
| 12/14/2006 | WO2006131372A1 Method and device for extracting a metal from a slag containing the metal |
| 12/14/2006 | WO2006131371A1 Method for reducing and/or refining a metal-containing slag |
| 12/14/2006 | CA2605390A1 Method for reducing and/or refining a metal-containing slag |
| 12/13/2006 | CN1289177C Polysulfonamide matrices and preparation method thereof |
| 12/13/2006 | CN1289173C Acid stable membranes for nanofiltration |
| 12/12/2006 | US7147782 Method and apparatus for metal removal by ion exchange |
| 12/07/2006 | US20060272454 concentrating a copper sulfide-containing ore to form a first concentrate and a second concentrate separate from the first concentrate |
| 12/06/2006 | EP1727916A1 Recovery of metals from oxidised metalliferous materials |
| 12/06/2006 | CN1875120A Leach extraction method |
| 12/06/2006 | CN1872727A Method for removing arsenic from waste solution of etching PCB in order to produce feed additive of copper |
| 12/06/2006 | CN1288778C Method for manufacturing core material for electrode plate and method for manufacturing alkali storage battery |