| Patents for C22B 23 - Obtaining nickel or cobalt (3,818) |
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| 03/10/2004 | CN1481447A Method and appts. for feeding solid material and oxidizing gas into suspension smelting furnace |
| 03/10/2004 | CN1141405C Process for desulfurizing high-glacial nickel |
| 03/09/2004 | US6702871 Neutralization of aqueous nickel sulfate solution with alkali or alkaline earth hydroxide; catalytic hydrogen reduction of nickel hydroxide slurry under atmospheric conditions |
| 03/03/2004 | EP1392444A1 Process for sulphide concentration |
| 03/03/2004 | CN1479793A Mtehod for hydrolytic precitpitation of iron |
| 02/26/2004 | WO2004016816A1 Recovering nickel |
| 01/28/2004 | CN1136062C Method for preparation of adhered magnet of recovered raw material powder and recouering and utilizing adhered magnet |
| 01/27/2004 | CA2304946C "multiple tuyere air box" for use on copper and nickel base metal converters |
| 01/22/2004 | WO2004007775A2 Direct melting and refining of metal oxide material |
| 01/22/2004 | US20040014589 Method for removing impurities from solvent extraction solutions |
| 01/20/2004 | US6680035 Hydrometallurgy |
| 01/08/2004 | US20040003681 Method for recovering catalytic metals using a porous metal filter |
| 01/07/2004 | EP1377690A1 Method for producing large diameter ingots of nickel base alloys |
| 12/24/2003 | CN1463212A Method for mfg. metal powder metal powder, conductive paste therefor, and laminated ceramic capacitor |
| 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 |
| 12/11/2003 | WO2003102250A1 Microwave treatment of ores |
| 12/10/2003 | EP1232290B1 Method for leaching nickeliferous oxide ores of high and low magnesium laterites |
| 12/10/2003 | EP1228259B1 Resin-in-pulp method for recovery of nickel and cobalt from oxidic ore leach slurry |
| 12/10/2003 | EP1228257B1 Atmospheric leach process for the recovery of nickel and cobalt from limonite and saprolite ores |
| 12/04/2003 | WO2003100105A1 Chloride assisted hydrometallurgical extraction of metals |
| 11/27/2003 | WO2003097903A1 Method and device for producing high-purity metal |
| 11/18/2003 | US6648878 Cryoplasty device and method |
| 11/13/2003 | WO2003093517A1 Atmospheric pressure leach process for lateritic nickel ore |
| 11/13/2003 | WO2003093516A1 Method for refining concentrate containing precious metals |
| 11/13/2003 | CA2484416A1 Method for refining concentrate containing precious metals |
| 11/13/2003 | CA2484134A1 Atmospheric pressure leach process for lateritic nickel ore |
| 10/29/2003 | CN1452605A Method for recovery of metals by incineration of metal contg. basic ion exchange resin |
| 10/22/2003 | EP0828552B1 Process for recovery of metal ions |
| 10/15/2003 | CN1449457A Method and apparatus for processing metals, and the metals so produced |
| 10/02/2003 | WO2003080878A1 Process for the recovery of nickel from spent catalyst |
| 10/01/2003 | CN1445381A Method for recovering catalytic metal using porous metal filter |
| 09/24/2003 | EP1346072A1 Method and apparatus for feeding solid material and oxidizing gas into suspension smelting furnace |
| 09/18/2003 | WO2003054238A8 A method for the recovery of cobalt |
| 09/17/2003 | EP1229977A4 Polyamide-containing ligands covalently bonded to supports, polyamide-containing resins, and methods for removing metals from solutions |
| 09/10/2003 | CN1120893C Process for recovering Co and Mn Catalyst from oxidized dregs of terephthalic acid |
| 09/04/2003 | WO2003072835A1 Method and apparatus for separating metal values |
| 09/03/2003 | EP1339883A1 Method for the hydrolytic precitpitation of iron |
| 08/28/2003 | US20030159281 Method for producing metal powser and metal powder, and electroconductive paste and monolithic ceramic capacitor |
| 08/27/2003 | EP1337677A2 Direct atmospheric leaching of highly-serpentinized saprolitic nickel laterite ores with sulphuric acid |
| 08/06/2003 | CN1117163C Method for recovery of Co-Mn metal from P-phthalic acid residual liquid |
| 07/31/2003 | WO2003062478A1 Method for the separation of zinc and a second metal which does not form an anionic complex in the presence of chloride ions |
| 07/30/2003 | EP1141424B1 Composition of oxime and hydroxy-ester for the solvent extraction of metals |
| 07/29/2003 | US6599450 Method of producing recycled raw material powder for use in bonded magnet and method of recycling bonded magnet |
| 07/16/2003 | EP1327693A1 Process for extracting cobalt and nickel from ores and ore concentrates |
| 07/16/2003 | CN1114500C Production of aromatic carboxylic acids and recovery of Co/Mn catalyst fromash |
| 07/10/2003 | WO2003056045A1 Chromium removal from leach liquors produced during high pressure acid leaching of lateritic ores |
| 07/10/2003 | WO2003056042A1 A method for precipitating iron from a zinc sulphate solution as hematite |
| 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 | CA2065491C Metal recovery |
| 07/03/2003 | WO2003054238A1 A method for the recovery of cobalt |
| 07/02/2003 | CN1113213C Method for feeding and directing reaction gas and solids into smelting furnace and multiadjustable burner designed for said purpose |
| 07/01/2003 | US6585800 Method for making molten metal |
| 06/25/2003 | EP1259652A4 Process and apparatus for recovery of cyanide and metals |
| 06/25/2003 | EP1159461B1 Recovery of nickel and cobalt from ore |
| 06/19/2003 | WO2003025234A3 Method for obtaining cobalt and nickel from ores and ore concentrates |
| 06/05/2003 | WO2003046233A1 Integrated ammoniacal solvent extraction and hydrogen reduction of nickel |
| 06/05/2003 | CA2468518A1 Integrated ammoniacal solvent extraction and hydrogen reduction of nickel |
| 06/04/2003 | EP1315693A1 Recovery of metals by incineration of metal containing basic ion exchange resin |
| 05/28/2003 | EP1314788A2 A method for recovering catalytic metals using a porous metal filter |
| 05/27/2003 | US6569224 Hydrometallurgical process for the recovery of nickel and cobalt values from a sulfidic flotation concentrate |
| 05/27/2003 | CA2307036C Nickel carbonyl vapour deposition apparatus and process |
| 05/15/2003 | US20030089619 Process and apparatus for recovery of cyanide and metals |
| 05/07/2003 | EP1307600A1 Method for reducing the oxygen and oxide content in cobalt to procuce cobalt sputtering targets |
| 05/02/2003 | EP1305455A2 Method and apparatus for processing metals, and the metals so produced |
| 05/02/2003 | EP1235942A4 Nickel powder desulfurisation |
| 04/15/2003 | US6548178 Adding a metal hydride to high temperature water, dissociating and reducing the concentration of the oxidizer by reacting with the hydrogen ions |
| 04/15/2003 | US6547847 Introducing through a injection level, a comburent gas; introducing material to be transformed, fuel, comburent and slag inoculants and additives and material-carrying gases, inert strirring gases; extracting process gases, tapping |
| 04/10/2003 | US20030066389 Forming nickel sulfide from nickel oxide ore; hydrometallurgy; reacting with copper; chlorine leaching nickel |
| 04/09/2003 | EP1299185A1 Mixed metal catalyst comprising a combustible binder |
| 04/03/2003 | US20030064013 Solvent extraction of impurity metals from a valuable metal sulphate solution |
| 04/01/2003 | CA2222900C Method of biotreatment for solid materials in a nonstirred surface bioreactor |
| 03/27/2003 | WO2003025234A2 Method for obtaining cobalt and nickel from ores and ore concentrates |
| 03/27/2003 | CA2460116A1 Method for obtaining cobalt and nickel from ores and ore concentrates |
| 03/26/2003 | EP1144699B1 Method for extracting anions of ivb to viii metals using alkyl-substituted 1,3-diaminopropanes |
| 03/26/2003 | CN1404950A Method for preapaing nano nickel and its alloy powder in water solution by chemical reduction method |
| 03/26/2003 | CN1103646C Decomposition treatment method for cohesive magnet |
| 03/25/2003 | US6537345 Organic solvent and heating; powder binder |
| 03/19/2003 | EP0993510B1 Method for phytomining of nickel, cobalt and other metals from soil |
| 03/18/2003 | CA2150455C Process to convert non-ferrous metal such as copper or nickel by oxygen enrichment |
| 03/12/2003 | CN1401798A Method for separating cobalt and zirconium from Co/ZrO2-SiO2 waste catalyst |
| 03/12/2003 | CN1401427A Method for recovery of waste cobalt-contg. catalyst for Fischer-Tropsch synthesis |
| 03/06/2003 | WO2003018851A1 Organic reagent cleaning |
| 02/26/2003 | EP1012352B1 Chloride assisted hydrometallurgical extraction of nickel and cobalt from sulphide or laterite ores |
| 02/25/2003 | US6524367 Ammonia and ammonium carbonate solution |
| 02/20/2003 | US20030033906 Chlorine leaching; oxidation pressure leaching |
| 02/13/2003 | US20030029523 Method of reducing corrosion potential and stress corrosion cracking susceptibility in nickel-base alloys |
| 02/10/2003 | CA2396972A1 Processing of nickel bearing solutions |
| 02/05/2003 | EP0946300B1 Process for the RECOVERY OF CO/MN FROM ASH |
| 01/30/2003 | US20030019329 Method for making molten metal |
| 01/22/2003 | CN1392902A Recovery of nickel and cobalt values from sulfidic flotation concentrate by chloride assisted oxidative pressure leaching in sulfuric acid |
| 01/08/2003 | EP1272680A2 Heap leaching of nickel containing ore with sulfuric acid |
| 01/03/2003 | WO2002050321A3 Acid leaching of nickel laterite ores for the extraction of their nickel and cobalt values |
| 01/02/2003 | EP1268105A1 Method for manufacturing metal parts |
| 12/27/2002 | WO2002102533A1 Method for producing metal powder and metal powder, and electroconductive paste and monolithic ceramic capacitor |
| 12/27/2002 | CA2448381A1 Method for manufacturing metal nuggets |
| 12/26/2002 | US20020194960 Thermally treating the valuables recovered from the scrap containing the valuable metals in the non-oxidizing atomopshere, after carbon removal step, metling thus obtained decarbonized metal |
| 12/25/2002 | CN1387584A Method for reduction of nickel |
| 12/25/2002 | CN1387583A Method for reduction of nickel from aqueous solution |
| 12/19/2002 | US20020189953 Method for processing metals |
| 12/19/2002 | US20020189937 Apparatus for processing metals |