| Patents for C22B 15 - Obtaining copper (5,364) |
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| 02/17/2004 | US6692709 Using an extractant solution of a calcium ion or magnesium ion loaded extractant in a water immiscible organic solvent |
| 02/17/2004 | US6692628 Process to remove ferric iron impurities from an acidic aqueous solution used in the electro-winning of copper |
| 02/17/2004 | CA2302965C Processes and intermediates for preparing anti-cancer compounds |
| 02/12/2004 | WO2004013361A1 Method of recovering platinum group element and apparatus therefor |
| 02/12/2004 | WO2003060172A3 Pressure oxidation of ore containing silver |
| 01/27/2004 | US6682824 Cords comprising a copper core and copper oxide surface layers for use as electrical and electronic conductors or connectors for communication or power transmission |
| 01/27/2004 | CA2304946C "multiple tuyere air box" for use on copper and nickel base metal converters |
| 01/22/2004 | US20040012130 Apparatus for removing dust accretions from a smelting furnace |
| 01/20/2004 | US6680034 Copper; solvent extraction, electrowinning |
| 01/15/2004 | US20040007521 Polysulfonamide matrices |
| 01/15/2004 | US20040007091 Comprises shaft furnace with porous flushing plug arranged in perpendicular direction within melt from which scavenging gas emerges |
| 01/14/2004 | EP1380656A1 Direct melting furnace and process therefor |
| 01/13/2004 | US6676909 Method for recovery of metals from metal-containing materials using medium temperature pressure leaching |
| 01/08/2004 | US20040003681 Method for recovering catalytic metals using a porous metal filter |
| 01/01/2004 | US20040000523 Silica-polyamine extraction material |
| 12/31/2003 | WO2004001098A1 Method for treating blister copper |
| 12/31/2003 | WO2003069025A3 Process for the dissolution of copper metal |
| 12/24/2003 | CN1131984C Method for cleaning slag in electric furnace |
| 12/18/2003 | WO2003105256A1 Method for manufacturing core material for electrode plate and method for manufacturing alkali storage battery |
| 12/18/2003 | WO2003104504A1 Method for producing blister copper |
| 12/18/2003 | US20030231995 Obtaining a slurry comprised of iron sulfide mineral particles and mineral sulfide particles containing zinc, nickel and/or copper; adjusting and/or maintaining pH; adding collector; conditioning; obtaining a flotation concentrate stream |
| 12/18/2003 | US20030230171 Process of recovering copper from ore |
| 12/18/2003 | CA2488398A1 Method for producing blister copper |
| 12/17/2003 | EP1370700A1 Metal ion extraction materials and processes using same |
| 12/16/2003 | US6663689 Process for direct electrowinning of copper |
| 12/11/2003 | WO2003102250A1 Microwave treatment of ores |
| 12/04/2003 | WO2003100105A1 Chloride assisted hydrometallurgical extraction of metals |
| 12/03/2003 | EP1366202A1 A method for the bacterially assisted heap leaching of chalcopyrite |
| 11/19/2003 | EP1242638B1 A process for the recovery of copper from aqueous solutions containing iodinated organic compounds |
| 11/18/2003 | US6649131 Preparation of highly pure copper oxide from waste etchant |
| 11/13/2003 | US20030209844 Mechanical waves generator system in a converter or pyrometallurgical furnace |
| 11/13/2003 | US20030209843 Mechanical waves generator system in a converter or pyrometallurgical furnace |
| 11/11/2003 | US6646147 Wood treatment |
| 11/11/2003 | US6645444 Complex of metal and ligand; using reducing agent; catalyst |
| 11/10/2003 | CA2428310A1 Process of recovering copper from ore |
| 11/06/2003 | WO2002079529A8 Method for direct metal making by microwave energy |
| 11/04/2003 | US6641642 High temperature pressure oxidation of ores and ore concentrates containing silver using controlled precipitation of sulfate species |
| 10/30/2003 | WO2003089677A1 Process for the treatment or removal of impurities in a hydrometallurgical extraction process |
| 10/30/2003 | WO2003089675A1 Method for the purification of copper chloride solution |
| 10/23/2003 | WO2003087416A1 Process for extracting platinum group metals |
| 10/23/2003 | WO2003010362B1 Process for direct electrowinning of copper |
| 10/16/2003 | US20030192404 Process for the treatment or removal of impurities in a hydrometallurgical extraction process |
| 10/14/2003 | US6632410 Solvent extraction process |
| 10/09/2003 | WO2003048400A3 Process for the treatment of molybdenum concentrate also containing copper |
| 10/08/2003 | CN1447896A Bottom structure for smelting furnace |
| 10/01/2003 | CN1445381A Method for recovering catalytic metal using porous metal filter |
| 09/30/2003 | US6626979 Adding a seeding agent to the vessel during oxidation |
| 09/24/2003 | EP1346072A1 Method and apparatus for feeding solid material and oxidizing gas into suspension smelting furnace |
| 09/24/2003 | EP1346071A2 Bioproduct production |
| 09/24/2003 | EP1346070A1 Method for leaching copper concentrate |
| 09/18/2003 | US20030173722 Bottom structure for a smelting furnace |
| 09/17/2003 | EP1229977A4 Polyamide-containing ligands covalently bonded to supports, polyamide-containing resins, and methods for removing metals from solutions |
| 09/17/2003 | CN1443248A Method and device for reducing oxygen content of copper melt |
| 08/28/2003 | WO2003010362A3 Process for direct electrowinning of copper |
| 08/28/2003 | US20030162986 Process for the dissolution of copper metal |
| 08/27/2003 | EP1337800A1 Cooling element |
| 08/27/2003 | EP1309392A4 Method for metal recovery from aqueous solutions |
| 08/27/2003 | CN1439089A Apparatus for removing dust accretions from a smelting furance |
| 08/26/2003 | CA2204060C Method and apparatus for recycling of scrap metal |
| 08/21/2003 | WO2003069025A2 Process for the dissolution of copper metal |
| 08/13/2003 | EP0958386B1 Process for reducing ore fines by fluidisation and use thereof for the production of molten pig iron or steel |
| 08/07/2003 | US20030145455 Wire processing apparatus and wire processing method |
| 08/06/2003 | CN1434140A Method for preparing coal base reductant for pyrometallurgical refining copper |
| 08/06/2003 | CN1434139A Coal base reductant use for pyrometallurgical refining reduction of copper |
| 07/31/2003 | WO2003062498A1 Anodic energy storage in electrolysis of a single halide solution |
| 07/31/2003 | US20030141242 Porous support matrices; permselective membrane |
| 07/30/2003 | EP1141424B1 Composition of oxime and hydroxy-ester for the solvent extraction of metals |
| 07/29/2003 | US6599414 Solvent extraction processes for metal recovery |
| 07/24/2003 | WO2003060172A2 Pressure oxidation of ore containing silver |
| 07/24/2003 | US20030138366 Recycling from an industrial waste sludge, separation by solidification of copper oxide; pollution control |
| 07/24/2003 | US20030136225 High temperature pressure oxidation of ores and ore concentrates containing silver using controlled precipitation of sulfate species |
| 07/22/2003 | US6596246 Process for producing stable cupric hydroxide and basic cupric salts |
| 07/22/2003 | US6596053 Processes for the recovery of copper from aqueous solutions containing nitrate ions |
| 07/16/2003 | CN1429921A Continuous refining furnace |
| 07/15/2003 | US6592644 Leaching the copper-sulfidic and/or copper/iron-sulfide ores, ores are converted to covelline, pyrite and accompanying sulfides by addition of sulfur in conversion step prior to leaching; extracting the nobel, rare earth and copper metals |
| 07/09/2003 | EP1325165A1 Recovery of nickel and cobalt values from a sulfidic flotation concentrate by chloride assisted oxidative pressure leaching in sulfuric acid |
| 07/08/2003 | US6589474 One-body horizontal continuous casting apparatus and methods of deoxidation, and refining of phosphorized copper using said apparatus |
| 07/08/2003 | US6589473 Apparatus for manufacturing low-oxygen copper |
| 07/08/2003 | CA2065491C Metal recovery |
| 07/03/2003 | WO2003054237A1 4-(alpha branched)acyl- (3h)-pyrazol-3-ones for use in the extraction of metals, especially copper, from solution |
| 07/03/2003 | US20030124040 Pressurization oxidation; separation; recovering copper |
| 07/03/2003 | US20030121857 Acid stable membranes for nanofiltration |
| 07/02/2003 | CN1113213C Method for feeding and directing reaction gas and solids into smelting furnace and multiadjustable burner designed for said purpose |
| 06/25/2003 | EP1259652A4 Process and apparatus for recovery of cyanide and metals |
| 06/25/2003 | EP1159461B1 Recovery of nickel and cobalt from ore |
| 06/24/2003 | US6582494 Biologically assisted leaching of copper concentrates with the use of a portion of the raffinate produced by solvent extraction to satisfy the demand for acid in the leaching step |
| 06/19/2003 | WO2003050464A1 Method and apparatus for increasing the capacity of a waste heat boiler in a metallurgic smelting furnace |
| 06/19/2003 | WO2003049867A1 Selective flotation agent and flotation method |
| 06/19/2003 | CA2701505A1 A method and apparatus for increasing the capacity of a waste heat boiler in a metallurgic smelting furnace |
| 06/19/2003 | CA2469359A1 Selective flotation agent and flotation method |
| 06/17/2003 | US6579339 Copper scrap processing system |
| 06/17/2003 | CA2186356C Hydrometallurgical extraction process for treating ores containing copper alone or copper and gold |
| 06/12/2003 | WO2003048400A2 Process for the treatment of molybdenum concentrate also containing copper |
| 06/10/2003 | US6576590 Materials for the separation of copper ions and ferric iron in liquid solutions |
| 06/10/2003 | US6576040 Process and plant with oxygen-enriched air feed for a non-ferrous metal production unit |
| 06/05/2003 | US20030105380 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 |
| 06/03/2003 | US6574263 Method for charging anode into furnace and method for designing furnace |
| 06/03/2003 | CA2364213A1 Process for the treatment of molybdenum concentrate |
| 05/28/2003 | EP1314788A2 A method for recovering catalytic metals using a porous metal filter |
| 05/28/2003 | EP1313993A1 Bottom structure for a smelting furnace |