| Patents for C22B 15 - Obtaining copper (5,364) |
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| 12/23/2004 | US20040255721 Heating and reduction of metal precursor compound to metal using alcoholic solvent |
| 12/22/2004 | CN1556867A Method for the production of blister copper |
| 12/22/2004 | CN1556233A Molten copper filtering deoxygen device |
| 12/22/2004 | CN1556232A Device for producing oxygen less copper utilizing waste red copper |
| 12/22/2004 | CN1556231A Technology of producing oxygenless copper using waste red copper |
| 12/22/2004 | CN1555944A Copper fused mass filtering deoxygen technology |
| 12/22/2004 | CN1181212C Copper-nickel slag treating method |
| 12/21/2004 | US6833020 Recovery of copper from copper bearing sulphide minerals by bioleaching with controlled oxygen feed |
| 12/21/2004 | US6833019 Microwave assisted continuous synthesis of nanocrystalline powders and coatings using the polyol process |
| 12/21/2004 | CA2250701C Process for separating sulphide-containing materials using hydrogen peroxide |
| 12/16/2004 | WO2004108973A1 Solvent extraction composition comprising sulphonic acid with a 4-(alpha branched) acyl-(3h)-pyrazol-3-ones and processes of metal extraction |
| 12/16/2004 | US20040250655 Precipitation/leaching of copper chloride solution |
| 12/15/2004 | CN1180099C Method for recovering waste copper foil |
| 12/14/2004 | US6830605 Recovery of metal values from cermet |
| 12/09/2004 | WO2004106561A1 Process of upgrading a copper concentrate |
| 12/09/2004 | WO2004106560A1 A process for treating dust |
| 12/09/2004 | WO2004029333A3 Method and device for electroextraction of heavy metals from technological solutions and wastewater |
| 12/09/2004 | WO2004022604A3 Solvent extraction process |
| 12/09/2004 | US20040245684 Melt launder |
| 12/09/2004 | US20040244534 From copper sulfide concentrates; oxidation in smelting chemical reactors |
| 12/07/2004 | US6827856 Using chelating resins for removing copper; displacing absorbed copper by treating resins with hydrochloric acid or sulfuric acid solutions; waste from iodine recovery by copper mineralization of X-ray contrast agent production solutions |
| 12/02/2004 | WO2004104238A2 Method for extracting copper from leach solutions at elevated temperatures |
| 12/02/2004 | WO2004104012A1 Method for the agglomeration of used material or fines from the production of organohalosilanes |
| 12/02/2004 | US20040241827 Adaptation of bacteria for use in leaching |
| 12/02/2004 | US20040237720 Zinc recovery process |
| 12/02/2004 | CA2525834A1 Method for extracting copper from leach solutions at elevated temperatures |
| 12/01/2004 | CN1177943C Method for leaching nickel from nickel matte |
| 11/25/2004 | WO2004101834A2 Treatment of base metal concentrate by a two-step bioleaching process |
| 11/25/2004 | WO2004101832A2 Microwave enhancement of the segregation roast |
| 11/25/2004 | US20040232084 Adding a sulfiding agent to the wastewater, while detecting generated hydrogen sulfide gas to maintain a state in which hydrogen sulfide gas is just starting to be generated from the wastewater; the acidity of the wastewater is adjusted to within a range suitable for the metal to be separated |
| 11/25/2004 | CA2526104A1 Treatment of base metal concentrate |
| 11/24/2004 | CN1549794A Method of treating heavy-metal-containing wastewater with sulfidizing agent and treatment apparatus |
| 11/23/2004 | US6821404 Copper recovery process |
| 11/23/2004 | CA2282848C Copper and nickel recovery |
| 11/23/2004 | CA2221930C Chloride assisted hydrometallurgical extraction of metal |
| 11/18/2004 | WO2004098775A1 A resin and process for extracting non-ferrous metals |
| 11/18/2004 | CA2525272A1 A resin and process for extracting non-ferrous metals |
| 11/16/2004 | CA2078048C Acid leaching of copper ore heap with fluoroaliphatic surfactant |
| 11/11/2004 | WO2004096717A2 Method and apparatus for treating waste water |
| 11/11/2004 | WO2004096711A1 Methods and devices for recycling copper from a discarded circuit board and a discarded fluid containing copper |
| 11/11/2004 | WO2004096400A2 Interlaced series parallel configuration for metal solvent extraction plants |
| 11/10/2004 | EP1165861B1 Copper recovery process |
| 11/10/2004 | EP1129225B1 Sulfatisation process for metal extraction from sulfide ores |
| 11/04/2004 | WO2004094676A1 Composition and process for the solvent extraction of metals using aldoxime or ketoxime extractants |
| 11/03/2004 | CN1174119C Liquid for reducing copper oxides and process thereof |
| 11/02/2004 | CA2307957C A method for total precipitation of valuable metals from an acid leaching solution |
| 11/02/2004 | CA2154560C Hydrometallurgical recovery of metals from complex ores |
| 10/28/2004 | WO2004092448A2 Precious metal recovery using thiocyanate lixiviant |
| 10/28/2004 | WO2004092425A1 Method for processing sulfide minerals and concentrates |
| 10/28/2004 | US20040213715 Selective recovery of precious metal(s) |
| 10/27/2004 | EP1242639B1 Equipment for the even feed of pulverous material to a concentrate burner of suspension smelting furnace |
| 10/27/2004 | EP1234062B1 Recovery of metals from ore by bioleaching with sulfur addition |
| 10/27/2004 | CN1540008A Method for using solid reductant in rotary type anode furnace |
| 10/21/2004 | US20040208807 A solvent extraction mixture comprising orthohydroxyarylaldoximes and orthohydroxyarylketoximes, and equilibrium modifiers; for extracting a metal from an acidic solution obtained by leaching ores |
| 10/21/2004 | US20040206208 Bacterial oxidation of sulphide ores and concentrates |
| 10/21/2004 | US20040205962 Wire processing apparatus and wire processing method |
| 10/20/2004 | EP1194612A4 Electrowinning cell incorporating metal ion filtration apparatus |
| 10/19/2004 | US6805831 Mechanical waves generator system in a converter or pyrometallurgical furnace |
| 10/14/2004 | US20040200730 Hydrometallurgical copper recovery process |
| 10/13/2004 | CN1537218A 冷却元件 Cooling element |
| 10/13/2004 | CN1170949C Method for selective precipitating arsenic from steel-containing ferric and ferric solution |
| 10/07/2004 | US20040197249 Precious metal recovery using thiocyanate lixiviant |
| 10/06/2004 | EP1463586A1 Selective flotation agent and flotation method |
| 10/06/2004 | EP1303640B1 Processing elemental sulfur-bearing materials using high temperature pressure leaching for sulfuric acid production and metal recovery |
| 10/06/2004 | CN1169943C Intermediate thermophilic acidophilic thiobacillu strin and its application |
| 10/05/2004 | US6800111 Concentrating the catalytic metal colloid on a filter; removing the catalytic metal of the catalytic metal colloid from the filter with an oxidizer; collecting the catalytic metal |
| 09/30/2004 | WO2004083468A1 Method for preventing oxidation of sulfide minerals in sulfide ore |
| 09/30/2004 | WO2004083467A2 Recovery of metal values from cermet |
| 09/30/2004 | US20040191143 Process for the dissolution of copper metal |
| 09/29/2004 | EP1194602B1 Method for reducing non-ferrous metal content in slag in the production of non-ferrous metals occurring in suspension smelting furnace |
| 09/28/2004 | US6797229 Apparatus for removing dust accretions from a smelting furnace |
| 09/28/2004 | CA2149800C Copper smelting apparatus |
| 09/23/2004 | WO2004081243A1 Method for recovering platinum group element |
| 09/23/2004 | WO2004081241A1 Improved heap leach |
| 09/23/2004 | WO2004080599A1 Method for controlling oxygen when separating minerals from a slurry |
| 09/22/2004 | EP1251940B1 A method for treatment of flue gas cleaning products |
| 09/22/2004 | CN1167819C Method for production of blister copper in suspension reactor |
| 09/22/2004 | CN1167818C Chloride assisted hydrometallurgical extraction of copper from sulphide ore materials |
| 09/16/2004 | WO2004079023A1 Microorganism and method for leaching mineral sulphides |
| 09/16/2004 | WO2004070067A3 Microwave assisted continuous synthesis of manocrystalline powders and coatings using the polyol process |
| 09/16/2004 | US20040179985 a leaching phase in which the electronic scrap is treated with a leaching solution based on cupric chloride and an alkaline chloride to dissolve the metals exposed to said solution, with the exception of gold, and a subsequent recovery phase of gold in solid form. |
| 09/16/2004 | US20040177722 Recovery of metal values from cermet |
| 09/16/2004 | US20040177721 Recovery of metal values from cermet |
| 09/16/2004 | CA2558468A1 Microorganism and method for leaching mineral sulphides |
| 09/15/2004 | EP1457577A1 Process for recovering metals, in particular precious metals, from electronic scrap |
| 09/15/2004 | EP1456424A1 4-(alpha branched)acyl- (3h)-pyrazol-3-ones for use in the extraction of metals, especially copper, from solution |
| 09/15/2004 | CN1528927A Copper smelting method |
| 09/15/2004 | CN1528926A Central vortex column flash smelting process |
| 09/08/2004 | EP1454105A1 Method and apparatus for increasing the capacity of a waste heat boiler in a metallurgic smelting furnace |
| 09/08/2004 | CN1527739A Polysulfonamide matrices |
| 09/07/2004 | US6787099 Mechanical waves generator system in a converter or pyrometallurgical furnace |
| 09/01/2004 | EP1451380A2 Process for the treatment of molybdenum concentrate also containing copper |
| 09/01/2004 | CN1525878A Acid stable membranes for nanofiltration |
| 08/31/2004 | US6783711 Process for preparing a sulfonamide polymer matrix |
| 08/24/2004 | CA2131575C Agent for treating metal ions in an aqueous solution, process for producing the metal ion-treating agent and method for treating metal ions in an aqueous solution |
| 08/19/2004 | WO2004070067A2 Microwave assisted continuous synthesis of manocrystalline powders and coatings using the polyol process |
| 08/19/2004 | US20040159655 Wire processing apparatus and wire processing method |
| 08/19/2004 | CA2515042A1 Microwave assisted continuous synthesis of nanocrystalline powders and coatings using the polyol process |
| 08/18/2004 | EP1289637A4 Polysulfonamide matrices |
| 08/17/2004 | CA2167026C Method of recovering antimony and bismuth from copper electrolyte |