| Patents for C22B 15 - Obtaining copper (5,364) |
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| 06/18/2008 | CN100395354C Comprehensive recovering process of multimetal sulfide mineral |
| 06/12/2008 | US20080134482 Method for manufacturing plate core material and method for manufacturing alkaline storage battery |
| 06/11/2008 | EP1678336A4 A process for the recovery of value metals from base metal sulfide ores |
| 06/11/2008 | CN101198711A Ultrahigh-purity copper and process for producing the same, and bonding wire comprising ultrahigh-purity copper |
| 06/11/2008 | CN101195867A Secondary copper ore concentrate converting method |
| 06/11/2008 | CN101195861A Method for separating copper from nickel and cobalt solution |
| 06/04/2008 | EP1926713A1 Phenoxypyrazole composition and process for the solvent extraction of metals |
| 06/04/2008 | CN101191157A Tap hole cooling structure |
| 06/04/2008 | CN101191153A Pyrite selectivity inhibition technique for secondary copper sulfide mineral biological lixiviation process |
| 06/03/2008 | CA2377779C Process for the extraction of copper |
| 05/28/2008 | EP1629129A4 Precious metal recovery using thiocyanate lixiviant |
| 05/28/2008 | CN101189351A Method for reducing and/or refining a metal-containing slag |
| 05/28/2008 | CN101186972A Leaching treatment technique for cobalt-containing rare alloy |
| 05/28/2008 | CN101186969A Method for separating rare earth, iron, copper, cobalt and tungsten from alloy |
| 05/22/2008 | WO2008059439A1 Sulfidisation process and apparatus for enhanced recovery of oxidised and surface oxidised base and precious metal minerals |
| 05/22/2008 | US20080115627 Metal Extraction In Liquid Or Supercritical-Fluid Solvents |
| 05/22/2008 | CA2669785A1 Sulfidisation process and apparatus for enhanced recovery of oxidised and surface oxidised base and precious metal minerals |
| 05/21/2008 | EP1620576A4 Improved heap leach |
| 05/21/2008 | EP1618219A4 Recovery of metal values from cermet |
| 05/14/2008 | EP1608787A4 Microorganism and method for leaching mineral sulphides |
| 05/14/2008 | CN201059300Y Plunger type hydraulic cylinder for copper ingot smelting furnace |
| 05/08/2008 | WO2008052690A1 Method for the continuous or discontinuous extraction of a metal, or of multiple metals from a slag containing the metal, or a compound of the metal |
| 05/08/2008 | WO2008052661A1 Recovery of non-ferrous metals from by-products of the zinc and lead industry using electric smelting with submerged plasma |
| 05/08/2008 | CA2668506A1 Recovery of non-ferrous metals from by-products of the zinc and lead industry using electric smelting with submerged plasma |
| 05/07/2008 | EP1917369A1 Method for separating impurities out of feed stock in copper melts |
| 05/07/2008 | CN101173326A Method for recovery utilization of acid waste liquid generated in waste lead acid accumulator lead -recovery process |
| 04/30/2008 | CN101171348A Method for the recovery of valuable metals and arsenic from a solution |
| 04/30/2008 | CN100385025C Method of coproducing modified polyiron from copper extracted PCB acid etching waste liquid |
| 04/30/2008 | CN100385024C Method for producing blister copper |
| 04/30/2008 | CN100385022C Leach extraction method |
| 04/29/2008 | CA2454821C Process for direct electrowinning of copper |
| 04/23/2008 | CN101165196A Technique for continuously smelting copper by employing oxygen bottom converter and device thereof |
| 04/17/2008 | CA2664030A1 Accelerated heat generation in heap bioleaching |
| 04/16/2008 | CN100381592C Improved bacterial oxidation of sulphide ores and concentrates |
| 04/16/2008 | CN100381447C Method for the agglomeration of used material or fines from the production of organohalosilanes |
| 04/08/2008 | US7354460 Method for manufacturing core material for electrode plate and method for manufacturing alkaline storage battery |
| 04/03/2008 | WO2007134343A3 Chloride heap leaching |
| 03/26/2008 | EP1903119A1 Ultrahigh-purity copper and process for producing the same, and bonding wire comprising ultrahigh-purity copper |
| 03/26/2008 | CN101151382A Modification of copper/iron selectivity in copper solvent extraction systems |
| 03/26/2008 | CN101149347A Method for separating and enriching trace cobalt nickel and copper metal ion using cloud point extraction system |
| 03/26/2008 | CN101148706A Deslagging technique for converting furnace double-deslagging-mouth |
| 03/26/2008 | CN101148705A Oxygen-enriched air refining method for copper by using converting furnace |
| 03/26/2008 | CN101148704A Method for separating and reclaiming copper from cobalt chloride solution |
| 03/20/2008 | US20080066578 Precious metal recovery using thiocyanate lixiviant |
| 03/20/2008 | US20080066577 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 |
| 03/20/2008 | DE102007040822A1 Kupferlegierung und Verfahren zu deren Herstellung Copper alloy and process for their preparation |
| 03/19/2008 | CN101144123A Floating smelting and immersed air refining integrated continuous copper smelting method and device |
| 03/12/2008 | CN101139661A Copper flash smelting operation parameter optimization method |
| 03/11/2008 | US7341700 Method for recovery of metals from metal-containing materials using medium temperature pressure leaching |
| 02/28/2008 | WO2008022986A2 Process for the recovery of metals from components |
| 02/28/2008 | US20080050293 Leach Extraction Method |
| 02/27/2008 | EP1807671B1 Method and device for extracting a metal from a slag containing the metal |
| 02/26/2008 | CA2200090C Apparatus and process for producing blister copper |
| 02/21/2008 | US20080042111 Copper-Containing Tin Powder, Method for Producing the Copper-Containing Tin Powder and Electro-Conductive Paste Using the Copper-Containing Tin Powder |
| 02/20/2008 | EP1888796A1 Method for reducing and/or refining a metal-containing slag |
| 02/20/2008 | EP1434893B1 Zinc recovery process |
| 02/20/2008 | EP1303642B1 Method for recovering copper from sulfide ore materials using high temperature pressure leaching, solvent extraction and electrowinning |
| 02/20/2008 | CN101125719A Method for reclaiming hydrochloric acid and metal copper from printed circuit acidic etching waste liquid |
| 02/19/2008 | CA2421780C Heat transfer in heap leaching of sulphide ores |
| 02/13/2008 | CN101121963A Method of recovering platinum group element and apparatus therefor |
| 02/13/2008 | CN101121960A Technique for fast preparing spongy copper |
| 02/06/2008 | EP1628983B1 Method for the agglomeration of used material or fines from the production of organohalosilanes |
| 02/06/2008 | CN101120108A Method for the treatment of copper-bearing materials |
| 02/06/2008 | CN101120107A Method for the recovery of gold from a gold-containing solution |
| 02/06/2008 | CN101120106A Method for the recovery of gold from sulphide concentrate |
| 02/06/2008 | CN100366771C Normal temperature normal pressure ammonia infusion-extraction-electrodeposition-slag infusion flotation of copper oxide green ore |
| 02/06/2008 | CN100366770C Method for recovering platinum group element |
| 02/06/2008 | CN100366767C Method for the recovery of metals using chloride leaching and extraction |
| 02/06/2008 | CN100366315C Method and equipment for liquid-liquid extraction |
| 01/31/2008 | US20080026450 Method of leaching copper sulfide ores containing chalcopyrite |
| 01/31/2008 | US20080025890 Use of Surfactants in the Production of Metal |
| 01/30/2008 | CN100365139C Method for producing concentrates |
| 01/24/2008 | WO2007118257A3 Metal recovery from a tank bioleaching solution with the use of coated magnetic particles |
| 01/24/2008 | US20080019891 Copper recoery method and system therefor |
| 01/23/2008 | CN101110285A High-conductivity electronic brass plate manufacturing technique |
| 01/23/2008 | CN101108744A Manufacture of copper arsenite and application of the same |
| 01/16/2008 | EP1877587A1 Method for the recovery of valuable metals and arsenic from a solution |
| 01/16/2008 | CN101107372A Use of surfactants in the production of metals |
| 01/16/2008 | CN101104889A Method for smelting pure copper or high-copper alloy raw material |
| 01/16/2008 | CN100362116C Microorganism and method for leaching mineral sulphides |
| 01/09/2008 | CN101102850A 气动浮选柱 Pneumatic flotation column |
| 01/09/2008 | CN101100708A Method for separating iron and copper from copper smelt slag |
| 01/09/2008 | CN101100706A Method for immersing gold from printing wiring board |
| 01/03/2008 | WO2007106709A9 Method for electrolytic production and refining of metals |
| 01/02/2008 | CN101096725A Operation method for copper smelting |
| 01/01/2008 | US7314604 Adding air to an acidic solution containing arsenic(V), copper, ferric iron and ferrous iron in a continuously stirred tankto oxidize the ferrous to ferric ion and heating to precipitate FeAsO4; recycling a portion of FeAsO4; seeding with FeAsO4 to enhance crystalline formation |
| 12/27/2007 | US20070295613 Recovery Of Metals From Oxidised Metalliferous Materials |
| 12/26/2007 | CN101094929A Processes for recovering metals from ores using organic solvent extraction and aqueous stripping at selected temperature differentials |
| 12/26/2007 | CN100357463C Pyrometallurgical production of copper in converter |
| 12/21/2007 | WO2007143807A1 Recycling of solids in oxidative pressure leaching of metals using halide ions |
| 12/21/2007 | WO2006049632A8 Process for recovery of copper from copper-bearing material using pressure leaching, direct electrowinning and solvent/solution extraction |
| 12/21/2007 | CA2650043A1 Recycling of solids in oxidative pressure leaching of metals using halide ions |
| 12/20/2007 | US20070292325 Process for improving phase separations in solvent extraction circuits |
| 12/19/2007 | CN101090984A Method for the hydrometallurgical treatment of sulfide concentrate containing several valuable metals |
| 12/18/2007 | US7309474 A solvent extraction mixture comprising orthohydroxyarylaldoximes and orthohydroxyarylketoximes, and equilibrium modifiers; for extracting a metal from an acidic solution obtained by leaching ores |
| 12/18/2007 | CA2387683C Continuous nickel matte converter for production of low iron containing nickel-rich matte with improved cobalt recovery |
| 12/13/2007 | US20070283785 Process for recovery of iron from copper slag |
| 12/12/2007 | EP1863944A1 Modification of copper/iron selectivity in oxime-based copper solvent extraction systems |
| 12/12/2007 | CN200988859Y Oxygen bottom blowing melting furnace |
| 12/12/2007 | CN101086033A Leaching iron removal trough for copper cobalt alloy separation and reclamation |