| Patents for C22B 15 - Obtaining copper (5,364) |
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| 06/12/2001 | US6245124 Vertical shaft furnaces |
| 06/05/2001 | US6241801 Method for treating particulate material in the fluidized bed method and vessel and plant for carrying out the method |
| 05/31/2001 | WO2001038590A2 Solvent extraction process for the recovery of valuable metals from acidic leachates |
| 05/31/2001 | WO2001018262A3 Bioleaching of sulphide minerals |
| 05/31/2001 | US20010002312 Regenerating a raffinate solution by passing through a reactor cell having openings for entry and exit of solution, having coated packing material colonized such as with Thiobacillus; reactivation of chemical leach solutions |
| 05/31/2001 | CA2391394A1 Solvent extraction process for the recovery of valuable metals from acidic leachates |
| 05/30/2001 | CN1066479C Chemical reducing solution for copper oxide |
| 05/29/2001 | US6238457 Flow velocity and flowing direction of the reaction gas and solids are adjusted at a point where the reaction gas and solids are discharged into the suspension smelting furnace |
| 05/25/2001 | WO2001036693A2 Recovery of metals from ore by bioleaching with sulfur addition |
| 05/24/2001 | US20010001650 Recovery of nickel and cobalt from ore |
| 05/24/2001 | CA2326081A1 Recovery of copper values from copper ores |
| 05/23/2001 | DE19955881A1 Process for the recovery of valuable metals from an acidic aqueous leaching solution comprises liquid/liquid extraction of the solution by contacting the solution once with an organic water insoluble extractant |
| 05/22/2001 | US6235074 An enameled copper wire having a polyester and/or a polyurethane based insulating coating thereon, and the process includes the steps of immersing the winding into an alkali solution, removing alkali attaching to the winding, and |
| 05/15/2001 | US6231784 Water insoluble composition of an aldoxime extractant and an equilibrium modifier |
| 05/15/2001 | US6231641 Enhanced phase interaction at the interface of molten slag and blister copper, and an apparatus for promoting same |
| 05/08/2001 | US6228144 Method for operating waste heat boiler in flash-smelting furnace |
| 05/03/2001 | WO2001031072A1 A method of operating a bioleach process with control of redox potential |
| 05/02/2001 | CN1293259A Rocovery of copper and mickel |
| 04/25/2001 | EP0832303B1 Chloride assisted hydrometallurgical extraction of metal |
| 04/24/2001 | CA2179996C Manufacture of copper rod |
| 04/18/2001 | CN1292036A Process for desulphurization of blister copper |
| 04/10/2001 | CA2204858C Process for making copper metal powder, copper oxides and copper foil |
| 04/05/2001 | WO2001023628A1 Stable ferric arsenate precipitation from acid copper solutions whilst minimising copper losses |
| 04/05/2001 | WO2001023627A1 Process to selectively recover metals from waste dusts, sludges and ores |
| 04/05/2001 | WO2001023067A1 Polyamide-containing ligands covalently bonded to supports, polyamide-containing resins, and methods for removing metals from solutions |
| 04/05/2001 | CA2384631A1 Polyamide-containing ligands covalently bonded to supports, polyamide-containing resins, and methods for removing metals from solutions |
| 04/04/2001 | EP0854765B1 Process for the production of ultrafine particles |
| 04/03/2001 | US6210647 Process of recovery of metals from aqueous ammoniacal solutions employing an ammonia antagonist having only hydrogen bond acceptor properties |
| 04/03/2001 | US6210463 Process and apparatus for the continuous refining of blister copper |
| 03/29/2001 | DE19946326A1 Recycling colored metals from the slag of copper winning comprises reacting the granulated slag with semi-concentrated sulfuric acid, roasting the cake produced and treating with alkali |
| 03/28/2001 | EP1086256A1 Treatment of roasted metal sulphide ores and ferrites by leaching with peroxysulphuric acid |
| 03/28/2001 | EP0862658B1 A method for the treatment of bismuth-containing sulphide ores or concentrates of such ore |
| 03/28/2001 | CN1288966A Copper-zinc separation method during smelting in a blast furnace |
| 03/27/2001 | US6206951 Pressure leaching using copper sulfate; heating |
| 03/20/2001 | US6203768 Process for the production of ultrafine particles |
| 03/15/2001 | WO2001018270A1 Recovery of nickel and copper from sulphide concentrates by bioleaching |
| 03/15/2001 | WO2001018269A1 Recovery of copper from copper bearing sulphide minerals by bioleaching with controlled oxygen feed |
| 03/15/2001 | WO2001018268A1 Recovery of nickel from nickel bearing sulphide minerals by bioleaching |
| 03/15/2001 | WO2001018267A1 Recovery of precious metal from sulphide minerals by bioleaching |
| 03/15/2001 | WO2001018266A1 Recovery of zinc from zinc bearing sulphide minerals by bioleaching and electrowinning |
| 03/15/2001 | WO2001018265A1 Method and device for continuous treatment of copper sulphide containing ore by biological leaching |
| 03/15/2001 | WO2001018264A1 Improved bacterial oxidation of sulphide ores and concentrates |
| 03/15/2001 | WO2001018263A1 Method and apparatus for achieving enhanced oxygen mass transfer in slurry systems |
| 03/15/2001 | WO2001018262A2 Bioleaching of sulphide minerals |
| 03/08/2001 | WO2001016385A1 Base metal recovery from a tailings dump by bacterial oxidation |
| 03/08/2001 | WO2001016384A1 Sulfatisation process for metal extraction from sulfide ores |
| 03/08/2001 | WO2001016383A2 Process and solution |
| 03/03/2001 | CA2317289A1 A modular solvent extraction plant and method for making and using such a plant |
| 02/27/2001 | US6192969 Casting of high purity oxygen free copper |
| 02/22/2001 | WO2001012589A1 Method for separating copper from iron |
| 02/22/2001 | CA2381691A1 Method for separating copper from iron |
| 02/14/2001 | CN1062023C Method for recovering copper and chromium from waste industrial catalyst |
| 02/08/2001 | WO2001009399A1 Silver recovery from acidic brine solution by cementation |
| 01/31/2001 | CN1061382C Method for treatment of mismuth-containing sulphite ores or concentrates of such ore |
| 01/23/2001 | US6177055 Water solutions with copper stripping solution whereby copper values are stripped from the organic phase into the aqueous acidic stripping solution; |
| 01/23/2001 | US6176997 Apparatus and method for copper extraction by in-situ electrolysis in heap-leaching of ores |
| 01/16/2001 | US6174492 Forebay for am Metallurgical furnace |
| 01/09/2001 | US6171564 Process for extraction of metal from an ore or concentrate containing nickel and/or cobalt |
| 01/09/2001 | US6171544 Multiple coherent jet lance |
| 01/04/2001 | WO2001000890A1 Process for the extraction of copper |
| 01/04/2001 | WO2001000889A1 Composition and process for the solvent extraction of metals using aldoxime or ketoxime extractants |
| 01/03/2001 | EP1064412A1 Method for transforming slag derived from non-iron metallurgy |
| 01/03/2001 | CN1278564A Method and system for recovering and removing copper from fluid |
| 01/02/2001 | US6168766 Controlling redox potential |
| 12/27/2000 | EP1063307A2 Method for recovering copper by solvent extraction in alternate steps |
| 12/27/2000 | EP1062372A2 Process for the desulphurization of blister copper |
| 12/27/2000 | CN1059930C Method for treating particle material using fluidized bed, and equipment therefor |
| 12/26/2000 | US6165344 Method for removing copper ions from copper ore using organic extractants |
| 12/20/2000 | EP1061141A1 A method for total precipitation of valuable metals from an acid leaching solution |
| 12/13/2000 | EP1059361A1 A method of purifying an iron-containing acid leaching solution |
| 12/13/2000 | CN1276370A Process for preparing anticancer compound, and intermediate |
| 12/13/2000 | CN1059472C Method and apparatus for suspension smelting |
| 12/12/2000 | US6159435 Leaching of mineral ores |
| 12/12/2000 | US6159356 Process for the production of high purity copper metal from primary or secondary sulphides |
| 12/08/2000 | CA2273903A1 Method for operating waste heat boiler in flash-smelting furnace |
| 12/07/2000 | WO2000073539A1 Electrowinning cell incorporating metal ion filtration apparatus |
| 12/07/2000 | WO2000073520A1 Recovery of cobalt and nickel from iron-rich mattes and alloys by leaching |
| 12/07/2000 | WO2000073519A1 Equipment for the even feed of pulverous material to a concentrate burner of suspension smelting furnace |
| 12/07/2000 | CA2374888A1 Equipment for the even feed of pulverous material to a concentrate burner of suspension smelting furnace |
| 12/06/2000 | CN1275629A Method for treating high zinc infusible fine copper ore |
| 12/05/2000 | US6156186 Method for removing contaminants from process streams in metal recovery processes |
| 11/30/2000 | WO2000071763A1 An improved method for heap leaching of chalcopyrite |
| 11/30/2000 | CA2374509A1 An improved method for heap leaching of chalcopyrite |
| 11/28/2000 | US6153081 Method of recovering antimony and bismuth from copper electrolyte |
| 11/27/2000 | CA2273067A1 Process for recovering value metals from iron-containing alloys |
| 11/23/2000 | WO2000070104A1 Method for reducing non-ferrous metal content in slag in the production of non-ferrous metals occurring in suspension smelting furnace |
| 11/23/2000 | WO2000070103A1 Method and equipment for smelting non-ferrous metal sulphides in a suspension smelting furnace in order to produce matte of a high non-ferrous metal content and disposable slag |
| 11/23/2000 | WO2000069538A1 A method for extracting copper from an aqueous solution |
| 11/23/2000 | CA2373126A1 Method for reducing non-ferrous metal content in slag in the production of non-ferrous metals occurring in suspension smelting furnace |
| 11/16/2000 | WO2000068445A1 Base metal recovery |
| 11/16/2000 | CA2373012A1 Base metal recovery |
| 10/25/2000 | EP0979208A4 Composition and method for reducing copper oxide to metallic copper |
| 10/25/2000 | CN1271392A Chloride assisted hydrometallurgical extraction of nickel and cobalt fro m sulphide or laterite ores |
| 10/24/2000 | CA2091677C Process for refining crude material for copper or copper alloy |
| 10/24/2000 | CA2055842C Process for continuous copper smelting |
| 10/24/2000 | CA2055841C Apparatus for continuous copper smelting |
| 10/18/2000 | EP1044969A2 Processes and intermediates for preparing anti-cancer compounds |
| 10/18/2000 | CN1057594C Method controlling fuel-air ratios of multi-combustor systems |
| 10/11/2000 | EP1043408A2 Processes and apparatus for recovery and removal of copper from fluids |
| 10/11/2000 | CN1269425A Multi-condensed jet-flow spray gun |