| Patents for C22B 15 - Obtaining copper (5,364) |
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| 12/24/2008 | CN101328537A Process for comprehensive recovery nickel, copper, cobalt, sulfur and magnesium from high magnesium and nickle ore concentrate |
| 12/24/2008 | CN101328536A Process for comprehensive recovery nickel, copper, cobalt, sulfur and magnesium from ore |
| 12/17/2008 | EP2002024A1 Method and equipment for treating process gas |
| 12/17/2008 | CN101323905A Fire metallurgy process of copper lead zinc mixing ore concentrate |
| 12/17/2008 | CN100443602C Rotary type anode furnace process technology for refining fuel coal by copper matte smelting process |
| 12/16/2008 | US7465386 Electrolytic method in diaphragm-type cell |
| 12/16/2008 | US7465334 Zinc recovery process |
| 12/10/2008 | EP1999286A2 Method for electrolytic production and refining of metals |
| 12/10/2008 | EP1999284A1 Improved processing of metal values from concentrates |
| 12/10/2008 | CN101319357A Preparation of copper nano-wire with microwave auxiliary liquid phase reduction |
| 12/10/2008 | CN101319279A Water vapour circulation type method for manufacturing spongy copper |
| 12/10/2008 | CN100441710C Dry type refining method for copper |
| 12/03/2008 | CN101315996A Method for selective decoppering of waste lithium ion battery |
| 12/03/2008 | CN101314819A Non-oxidation non-reduction fire refining process for copper |
| 12/02/2008 | US7459006 Extraction of an element of ore ; applying electromagnetic radiation; induce pyrolysis |
| 11/26/2008 | EP1994189A1 Process for the acid digestion of metal-containing compounds |
| 11/26/2008 | CN100436997C Melt launder |
| 11/19/2008 | CN101307387A Process for extracting copper by wet method from copper-containing sulfidization ore |
| 11/19/2008 | CN100434549C Copper smelting process |
| 11/18/2008 | CA2362292C Furnace discharge system and method of operation |
| 11/12/2008 | CN201148457Y Furnace clinker blocking machine |
| 11/12/2008 | CN101302583A Copper smelting method |
| 11/12/2008 | CN100432247C A process for-reprocessing oxidic by-products containing arsenic |
| 11/11/2008 | US7449160 Process of solvent extraction of copper |
| 11/05/2008 | CN101298639A Comprehensive utilization process of malachite ore |
| 11/04/2008 | US7446077 Silicon oxides, alumina, molecular sieves having surface area of four hundred square meters per gram; surface acidity of less than two tenths of a micromole per square meter; transition metal phase dispersed through matrix is selective to reversible adsorption of sulfur |
| 10/30/2008 | US20080264209 Refining of copper or Nickel by reacting oxygen with sulfur in the molten copper or Nickel to produce sulfur dioxide which is then removed from the metal; flame envelope simultaneously serves to keep accretions from forming on lance face and serves to maintain the oxygen-containing gas stream coherent |
| 10/29/2008 | EP1984531A1 Method for recovering gold |
| 10/29/2008 | EP1984529A1 Method for recovering copper from a copper sulphide ore |
| 10/28/2008 | CA2417413C Method for recovering copper from sulfide ore materials using high temperature pressure leaching, solvent extraction and electrowinning |
| 10/23/2008 | WO2008125726A1 Method and apparatus for reducing copper (i) oxide |
| 10/23/2008 | WO2008022986A3 Process for the recovery of metals from components |
| 10/22/2008 | EP1759024A4 Process for copper converting |
| 10/22/2008 | CN101289707A Copper recovery form etching waste liquid of circuit board |
| 10/21/2008 | US7438874 Extraction of a base metal such as Ni, Co or Zn, from a sulphide ore or concentrate containing copper and the base metal comprises the step of subjecting the ore or concentrate to pressure oxidation in the presence of oxygen and an acidic |
| 10/15/2008 | CN101285195A Indirect regeneration for waste etching solution and recovery processing system for copper |
| 10/14/2008 | US7435405 Providing sulfide ore containing sulfide minerals, and adding an antioxidant of plant polyphenol to sulfide minerals of the ore; antioxidant of pyroligneous acid and/or bamboo vinegar; preventing the elution of heavy metals from the sulfide ore, reducing the decreasein in flotation performance |
| 10/08/2008 | EP1583847B1 Method and plant for the heat treatment of sulfidic ores using annular fluidized bed |
| 10/08/2008 | CN101280430A Preparation of hyperpure copper |
| 10/08/2008 | CN101280365A Slag splashing method for nickel-copper smelting converter |
| 10/02/2008 | US20080241024 Method for Leaching Metal Sulphide Minerals |
| 10/01/2008 | EP1727916A4 Recovery of metals from oxidised metalliferous materials |
| 10/01/2008 | CN201125266Y Corroded solution regeneration and copper recycling preprocess apparatus |
| 10/01/2008 | CN201125264Y Converting furnace top water jacket girder |
| 10/01/2008 | CN201125263Y Converting furnace copper tap hole water sleeve |
| 10/01/2008 | CN101275810A Reverbaratory furnace |
| 10/01/2008 | CN101275186A Production method for high-purity copper and low-oxygen bright copper rod |
| 10/01/2008 | CN101275185A Manufacturing technique for oxygen-enriched side blowing molten pool raw copper smelting and special equipment thereof |
| 10/01/2008 | CN100422359C Optimization method of bioleaching process |
| 09/30/2008 | CA2417417C Method for recovery of copper from sulfidic ore materials using super-fine grinding and medium temperature pressure leaching |
| 09/25/2008 | WO2008113884A1 Method to enhance clarification in a mixing reactor and said mixing reactor |
| 09/25/2008 | CA2677067A1 Method to enhance clarification in a mixing reactor and said mixing reactor |
| 09/24/2008 | CN101270411A Method for recycling copper from waste circuit board |
| 09/18/2008 | US20080223176 Outer surface of each particle has selective and high affinity for the metal by coating with archaea cells |
| 09/16/2008 | CA2427221C Process and intermediates for preparing anti-cancer compounds |
| 09/11/2008 | US20080216606 Grinding to uniform particle size; heating; pressurization;; extraction from ores, concentrates |
| 09/10/2008 | CN101260463A Leaching method for alloy material obtained from magnetic copper-nickel concentrate |
| 09/10/2008 | CN100417733C Oxidative leach process |
| 09/09/2008 | US7422621 Pyrite is removed from leaching residue by pyrolyzing the residue at 550 degrees C. or higher in a non-oxidative atmosphere to produce calcined ore containing pyrrhotite, precious metals and gangue; and re-leaching the calcined ore in an acidic, aqueous solution |
| 09/03/2008 | EP1964936A1 Process for recovering noble metals from electric and electronic wastes |
| 09/03/2008 | CN101258252A Method for separating impurities out of feed stock in copper melts |
| 09/03/2008 | CN101254948A Production of pure molybdenum oxide from low grade molybdenite concentrates |
| 08/27/2008 | CN100413983C Method of eliminating passivation film for chalcopyrite at lixiviating course by sulfur oxidizing bacteria |
| 08/21/2008 | US20080196550 Method of producing an oxygen-free copper wire material by a continuous cast-rolling method using a rotational movable mold |
| 08/20/2008 | CN101245414A Method for extracting metal from laterite mine |
| 08/13/2008 | EP1769093B1 Optimization of bioleaching process |
| 08/13/2008 | CN100410397C Supply system for suspension smelting furnace |
| 08/12/2008 | CA2381157C Bioleaching of sulphide minerals |
| 08/06/2008 | CN101238343A Method and device for extracting a metal from a slag containing the metal |
| 08/06/2008 | CN101235442A Copper extracting smelting technique for copper ore dressing tailings |
| 08/06/2008 | CN100408956C Camp stove |
| 08/05/2008 | CA2384664C Stable ferric arsenate precipitation from acid copper solutions whilst minimising copper losses |
| 07/31/2008 | WO2008046114A3 Accelerated heat generation in heap bioleaching by controlled carbon dioxide addition |
| 07/31/2008 | US20080178706 Heap bioleaching process |
| 07/30/2008 | CN100406592C Method for obtaining pure copper |
| 07/30/2008 | CN100406591C Method for extracting metal copper from electronical wastes |
| 07/29/2008 | CA2370923C A method for extracting copper from an aqueous solution |
| 07/23/2008 | CN101225476A Process for reclaiming copper from lead copper matte |
| 07/23/2008 | CN100404708C Two-section roasting production process for recovering Au, Cu, Ag, As and S from As and C containing aurin ore |
| 07/22/2008 | CA2246089C Method for producing copper in hydrometallurgical process |
| 07/19/2008 | CA2618608A1 Integrated hydrometallurgical and pyrometallurgical processing of base-metal sulphides |
| 07/17/2008 | WO2008036816A3 Multivalent iron ion separation in metal recovery circuits |
| 07/17/2008 | US20080170976 Method for the Hydrometallurgical Treatment of Sulfide Concentrate Containing Several Valuable Metals |
| 07/16/2008 | CN201087210Y Floating smelting and immersing converting integrated continual copper smelting device |
| 07/16/2008 | CN101220417A Wet-process metallurgy method for extracting copper from waste composition brass melting furnace slag |
| 07/16/2008 | CN101220416A Method for recycling copper from clean melt cinder of wet-process zinc metallurgy |
| 07/16/2008 | CN101220415A High liquid level operating technique for converting furnace |
| 07/16/2008 | CN100402677C Bacteria underground heap leaching process for copper ore |
| 07/15/2008 | CA2384451C Base metal recovery from a tailings dump by bacterial oxidation |
| 07/10/2008 | WO2008015582A3 Process for improving phase separations in solvent extraction circuits of metal winning |
| 07/09/2008 | CN101215642A Method for producing spongy copper by utilizing rejected copper oxide ore |
| 07/03/2008 | US20080156656 Method for recovering metal values from metal-containing materials using high temperature pressure leaching |
| 07/02/2008 | EP1937859A1 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 |
| 07/02/2008 | EP1937857A1 Process for recovery of metal values from materials containing arsenic and/or antimony |
| 07/01/2008 | US7393496 Method and apparatus for increasing the capacity of a waste heat boiler in a metallurgic smelting furnace |
| 06/26/2008 | WO2008074806A1 Method for obtaining copper from cupriferous arsenosulphide and/or antimony sulphide ores or ore concentrates |
| 06/26/2008 | WO2008074805A1 Method for obtaining copper and precious metals from copper-iron sulphide ores or ore concentrates |
| 06/26/2008 | US20080152558 Method for the Treatment of Copper-Bearing Materials |
| 06/24/2008 | US7390468 For the stabilization of capacity, the extraction cells and their piping are constructed and situated in such a way, that the extraction stages can be connected in different combinations, either in parallel or in a series |
| 06/18/2008 | CN101199988A Ultrahigh pure copper ingot preparing process |