| Patents for C22B 15 - Obtaining copper (5,364) |
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| 09/23/2009 | EP1634027B2 Industrial oven |
| 09/23/2009 | CN101538646A Process method for producing copper sulfate by intensified leaching of copper-containing materials |
| 09/23/2009 | CN101537388A Separation method for bismuth-molybdenum-copper-sulfide mixed concentrate |
| 09/16/2009 | CN101532091A Technology of extracting and separating valuable metals such as Pb, In, Sb, Cu and Sn from lead smelting converter slags |
| 09/16/2009 | CN101532090A An aluminum separation method for waste air-conditioner heat exchanger |
| 09/16/2009 | CN100540697C Oxygen-enriched air refining method for copper by using converting furnace |
| 09/11/2009 | WO2009109522A1 Picolylamine resins |
| 09/11/2009 | WO2009109520A1 Picolylamine resins |
| 09/10/2009 | US20090226284 Supply system for suspension smelting furnace |
| 09/09/2009 | CN101525694A Separation process for material containing lead, antimony, copper, bismuth and silver |
| 09/09/2009 | CN101525692A Method for environment-friendly utilization of copper-nickel-tungsten alloy |
| 09/09/2009 | CN101525691A Method for extracting multiple metals from manganese nodule industrial residues |
| 09/09/2009 | CN101524721A Method for preparing single-crystal copper bonding wire |
| 09/09/2009 | CN100537785C Industrial oven |
| 09/09/2009 | CN100537784C Electric reducing furnace |
| 09/02/2009 | CN101519734A Oxygen-blowing matte making polymetallic catch process |
| 09/02/2009 | CN101519733A Method for recovering waste circuit board copper by utilizing a planing process |
| 09/02/2009 | CN101519731A Method for extracting high arsenic complicated golden ore concentrate multielement |
| 09/02/2009 | CN101519726A Method for directly roasting and processing spent lithium ion batteries and recycling valuable metals |
| 09/01/2009 | CA2388990C A method of operating a bioleach process with control of redox potential |
| 08/26/2009 | CN101514398A High Cu-RE interalloy refining agent for refining scrap copper and preparation and application thereof |
| 08/25/2009 | US7578868 Metal recovery from a tank bioleaching solution with the use of coated magnetic particles |
| 08/20/2009 | US20090209027 Introduction of microorganisms in bio-assisted heap leaching operations |
| 08/19/2009 | CN101509125A Method for producing copper sputtering target material |
| 08/19/2009 | CN101509075A Method for separating copper and manganese from copper-manganese solution with high degree of acidity |
| 08/19/2009 | CN101509068A Infiltration treatment process for ore containing copper |
| 08/19/2009 | CN100529127C Use of surfactants in the production of metals |
| 08/18/2009 | US7575622 Heap leach process |
| 08/18/2009 | CA2189535C Liquid treatment method and system |
| 08/12/2009 | CN101506395A Chloride tank leaching |
| 08/05/2009 | CN201285293Y Testing gun and testing system for smelting |
| 08/05/2009 | CN101497942A Biological leaching-solvent extraction-electrodeposition recovering method for heavy metal copper in sludge |
| 08/05/2009 | CN100523233C Energy-saving and environmental-protection refining furnace |
| 08/04/2009 | CA2353875C Composition of oxime and hydroxy-ester for the solvent extraction of metals |
| 07/29/2009 | EP2082070A1 Recovery of non-ferrous metals from by-products of the zinc and lead industry using electric smelting with submerged plasma |
| 07/29/2009 | EP1613784B1 Composition and process for the solvent extraction of metals using aldoxime or ketoxime extractants |
| 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 | WO2009090531A1 Method for continuous conversion of copper matte - specification |
| 07/23/2009 | CA2712274A1 Method and apparatus for electrowinning copper with ferrous/ferric anode reaction electrowinning |
| 07/23/2009 | CA2711735A1 Method of continuous conversion of copper matte descriptive memory |
| 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 |
| 07/16/2009 | WO2009087908A1 Method of recycling useful metal |
| 07/15/2009 | CN100513599C Method for bacterially assisted heap leaching of chalcopyrite |
| 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 | US20090173188 Chloride Heap Leaching |
| 07/09/2009 | CA2711025A1 Improved method for metal recovery and leaching agent recycle in agitation leach plants |
| 07/08/2009 | CN101476046A Cold charge continuous feeding method for copper converter |
| 07/08/2009 | CN101476045A Method for smelting copper |
| 07/07/2009 | CA2383812C Recovery of zinc from zinc bearing sulphide minerals by bioleaching and electrowinning |
| 07/02/2009 | US20090165598 Novel phosphinic acids and their sulfur derivatives and methods for their preparation |
| 07/02/2009 | DE102008058605A1 Vorrichtung zur Gewinnung von Metallen oder Metallverbindungen, aus einem das Metall oder die Metallverbindung enthaltenden Material An apparatus for recovery of metals or metal compounds, from a metal or metal compound-containing material |
| 06/25/2009 | WO2009078467A1 Slag for electroslag remelting of coppoer alloys and process for manufacturing copper alloy products |
| 06/25/2009 | WO2009077851A1 Continuous fire reduction of liquid copper |
| 06/25/2009 | WO2009077654A1 Suspension smelting furnace |
| 06/25/2009 | WO2009077653A1 Suspension smelting furnace and method for producing crude metal or matte in a suspension smelting furnace |
| 06/25/2009 | WO2009077652A1 Method and arrangement for treating exhaust gases from a suspension smelting furnace |
| 06/25/2009 | WO2009077651A1 Method for refining copper concentrate |
| 06/25/2009 | CA2710073A1 Continuous fire reduction of liquid copper |
| 06/24/2009 | CN101463427A Method for recycling valuable metal from cobalt white alloy |
| 06/17/2009 | EP1937859B1 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 |
| 06/17/2009 | CN101457300A Device and method for continuous refining waste purple impure copper |
| 06/17/2009 | CN101457299A Wet processing process of high mud cupric oxide mine at high-cold area |
| 06/16/2009 | US7547348 Method for the recovery of metals using chloride leaching and extraction |
| 06/10/2009 | CN201254596Y Long life high temperature resistant spray head for improving mineral powder oxidation efficiency in flash smelting |
| 06/10/2009 | CN101451196A Wet-smelting method of copper and zinc bulk concentrate |
| 06/10/2009 | CN101451195A Technology process of extracting copper from copper oxide ore |
| 06/09/2009 | US7544231 From cyanide solution or leachate via precipitation; ion exchanging |
| 06/09/2009 | US7544227 Recovering metals trapped in ores and slags by reacting laterites, magnetites or iron oxides with carbon, chloride and water using microwave radiation as the primary energy source; the water, carbon and chloride can be recycled |
| 06/04/2009 | WO2009069782A1 Method of regulating composition of molten metal during continuous casting and apparatus therefor |
| 06/04/2009 | WO2009069781A1 Process for manufacturing copper alloy products and equipment therefor |
| 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 |
| 06/03/2009 | CN201250269Y Copper-nickel ore smelting furnace |
| 05/27/2009 | CN201245669Y Apparatus and hammer for opening and closing steel-tapping hole of metallurgical furnace wall with fire resistant inner lining |
| 05/27/2009 | CN101440434A Technique for extracting copper from high-calcium high-magnesium cupric sulfide by wet method |
| 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 |
| 05/21/2009 | US20090126532 High temperature heap bioleaching process |
| 05/20/2009 | CN201241179Y Sedimentation facilities for recovering cupper from smelting waste gases |
| 05/20/2009 | CN101435024A Raw copper air refining process based on mathematical model |
| 05/20/2009 | CN101435022A Novel process for controlling formation of third phase in copper sulphide ore bioleaching liquid extraction process |
| 05/20/2009 | CN101435021A Acid heap leaching process for cupric oxide ore |
| 05/20/2009 | CN101434024A Technique for producing low-oxygen copper pole |
| 05/20/2009 | CN100489127C Method for preparing copper pipe for magnetic control pipe |
| 05/13/2009 | CN201236204Y Link type electric furnace capable of implementing safety water pass |
| 05/13/2009 | CN101429594A Separation and recycle of copper and arsenic from high-copper high-arsenic wastewater with sulphur dioxide reduction-diffusion dialysis method |
| 05/13/2009 | CN100487142C Method of extracting valuable element from waste water and waste slag |
| 05/07/2009 | WO2009059336A1 High temperature leaching process |
| 05/07/2009 | CA2703863A1 High temperature leaching process |
| 05/06/2009 | CN100485061C Operation method for copper smelting |
| 05/06/2009 | CN100485060C Method for recovering gold from a gold-containing solution |
| 05/06/2009 | CN100485059C Method for recovering gold from sulphide concentrate |
| 04/29/2009 | EP1628767A4 A resin and process for extracting non-ferrous metals |
| 04/29/2009 | CN101417284A Recovery method of waste circuit board value resource |
| 04/29/2009 | CN100482815C Sulfur slag vacuum volatilizing process for enriching noble metal |