| Patents for C22B 23 - Obtaining nickel or cobalt (3,818) |
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| 07/02/2008 | CN100398676C Process for recovery of nickel and cobalt by heap leaching of low grade nickel or cobalt containing material |
| 06/25/2008 | EP1841891A4 Extraction of nickel and cobalt from a resin eluate stream |
| 06/19/2008 | US20080141828 sludge created in the metal separation is classified, as the process is concerned, into a better and a worse substance fraction based on a predetermined property of the sludge, and the worse substance fraction is removed from the process and the better substance fraction is returned back to the process |
| 06/18/2008 | EP1932929A1 METHOD OF ROASTING V, Mo AND Ni-CONTAINING MATTER, AND ROTARY KILN FOR ROASTING OF V, Mo AND Ni-CONTAINING MATTER |
| 06/18/2008 | EP1931807A1 Method for processing nickel bearing raw material in chloride-based leaching |
| 06/18/2008 | CN100395355C Method and apparatus for processing metalline sludge |
| 06/18/2008 | CN100395354C Comprehensive recovering process of multimetal sulfide mineral |
| 06/17/2008 | US7387767 neutralized and reduced product liquor is contacted with hydrogen sulfide gas to precipitate nickel and cobalt sulfides, which are reduced to produce nickel and cobalt metal; environmentally safe manner |
| 06/11/2008 | EP1929056A1 Process for leaching lateritic ore at atmospheric pressure |
| 06/11/2008 | EP1928624A2 Continuous production of nano-scale metal particles |
| 06/11/2008 | EP1678336A4 A process for the recovery of value metals from base metal sulfide ores |
| 06/11/2008 | EP1644541A4 Process for recovery of nickel and cobalt by heap leaching of low grade nickel or cobalt containing material |
| 06/11/2008 | EP1252345B1 Solvent extraction of impurity metals from a valuable metal sulphate solution |
| 06/11/2008 | CN101195870A Method for processing waste alloy of nickel cobalt |
| 06/11/2008 | CN101195869A Solvent extraction method for materials after nickelous oxide mine chloridization oxidation treatment |
| 06/11/2008 | CN101195868A Method for processing roasted product raw material containing nickel |
| 06/11/2008 | CN101195864A Nickel cobalt waste material recycling and processing method |
| 06/11/2008 | CN101195862A Method for purifying and cadmium removing from nickel and cobalt solution |
| 06/11/2008 | CN101195861A Method for separating copper from nickel and cobalt solution |
| 06/11/2008 | CN101195858A Method for extracting nickel with pressure leaching of non-metal high nickel sulfonium material |
| 06/05/2008 | US20080134364 Recovering metals from soil |
| 06/04/2008 | CN101191152A Biological stirring cobalt-dipping technique for concentrate containing cobalt and sulfur |
| 05/30/2008 | CA2607770A1 Method for recovering valuable metals from wastes |
| 05/28/2008 | EP1613785A4 Reductive ammoniacal leaching of nickel and cobalt bearing materials |
| 05/28/2008 | CN101188323A Vacuum distillation industrial device special for recycling abandoned nickel and cadmium cell |
| 05/28/2008 | CN101186972A Leaching treatment technique for cobalt-containing rare alloy |
| 05/28/2008 | CN101186969A Method for separating rare earth, iron, copper, cobalt and tungsten from alloy |
| 05/22/2008 | WO2008059439A1 Sulfidisation process and apparatus for enhanced recovery of oxidised and surface oxidised base and precious metal minerals |
| 05/22/2008 | CA2669785A1 Sulfidisation process and apparatus for enhanced recovery of oxidised and surface oxidised base and precious metal minerals |
| 05/22/2008 | CA2610927A1 Method of making up and treating nickel concentrates |
| 05/21/2008 | EP1923474A1 Large diameter ingots of nickel base alloys |
| 05/21/2008 | EP1922423A1 Hydrometallurgical method for the extraction of nickel and cobalt from laterite ores |
| 05/21/2008 | EP1618219A4 Recovery of metal values from cermet |
| 05/15/2008 | WO2008057670A2 Process for treating iron-containing waste streams |
| 05/15/2008 | WO2008055335A1 Process for recovery of nickel and cobalt from laterite ores using ion exchange resin |
| 05/15/2008 | CA2669147A1 Process for recovery of nickel and cobalt from laterite ores using ion exchange resin |
| 05/14/2008 | CN101177735A Process for extracting and separating nickel-phase form bone coal ore by high pressure oxygen-ammonia leaching |
| 05/07/2008 | CN101175863A An improved process for heap leaching of nickeliferous oxidic ores |
| 05/02/2008 | WO2008049177A2 Method for production of metallic cobalt from the nickel solvent extraction raffinate |
| 05/02/2008 | CA2666229A1 Method for production of metallic cobalt from the nickel solvent extraction raffinate |
| 05/01/2008 | US20080102007 dividing the waste stream into a first and a second stream, then adding a neutralization agent (e.g., calcium hydroxide) to the first stream to form a partially neutralized slurry, and combining this partially neutralized first stream with the second stream to form a combined stream |
| 04/23/2008 | CN100383261C Process for extracting metal cobalt from waste hard alloy |
| 04/23/2008 | CN100383259C Method for recovering nickel and cobalt from nickel oxide ore and nickel silicide ore |
| 04/15/2008 | US7357827 High yield industrial scale precipitation; based on strongly ammoniacal carbonate or sulfate |
| 04/02/2008 | CN100378233C Process for cleaning decopper nickel electrolytic solution |
| 03/27/2008 | WO2008034198A1 An ion exchange resin and a process for the use thereof |
| 03/27/2008 | WO2008034189A1 Improved process and plant for producing nickel |
| 03/27/2008 | CA2664013A1 An ion exchange resin and a process for the use thereof |
| 03/26/2008 | CN101149347A Method for separating and enriching trace cobalt nickel and copper metal ion using cloud point extraction system |
| 03/26/2008 | CN101148698A Extraction method for removing calcium and magnesium from copper-cobalt ore leachate |
| 03/20/2008 | WO2008031897A1 Process for recovering group vi-b metals from spent catalysts |
| 03/20/2008 | WO2008031203A1 Oxidative and anoxic extraction of metals from sulphide minerals |
| 03/20/2008 | CA2663228A1 Process for recovering group vi-b metals from spent catalysts |
| 03/20/2008 | CA2662588A1 Oxidative and anoxic extraction of metals from sulphide minerals |
| 03/19/2008 | EP1900831A1 A process for the recovery of value metals from material containing base metal oxides |
| 03/19/2008 | EP1899271A2 Process for the extraction of specific transition metals |
| 03/13/2008 | WO2008029009A1 Process for the hydrometallurgical treatment of a lateritic nickel/cobalt ore and process for producing nickel and/or cobalt intermediate concentrates or commercial products using it |
| 03/13/2008 | CA2662739A1 Process for the hydrometallurgical treatment of a lateritic nickel/cobalt ore and process for producing nickel and/or cobalt intermediate concentrates or commercial products usingit |
| 03/12/2008 | CN101139659A Method for reclaiming nickel from acidic nickel plating waste water |
| 03/12/2008 | CN101139658A Equipment for reclaiming nickel from acidic nickel plating waste water |
| 03/12/2008 | CN101139656A Laterite nickel ore leaching method |
| 03/12/2008 | CN100374593C Tech. of extracting metallic cobait from magnetic-iron ore tailing slag |
| 03/06/2008 | US20080053276 Nickel and cobalt recovery; separating ore into low magnesium limonite and high magnesium saprolite; high pressure sulfuric acid leaching of limonite; adding saprolite to primary slurry to precipitate iron as goethite or hematite; ambient leaching; low alkali solutions inhibit jarosite; hydrometallurgy |
| 02/28/2008 | WO2008022395A1 Improved hydrometallurgical method for the extraction of nickel from laterite ores |
| 02/28/2008 | WO2008022381A1 Production of metallic nickel with low iron content |
| 02/28/2008 | US20080050295 Lithium Battery Treatment Method |
| 02/28/2008 | US20080050294 leaching laterite ore and/or partially oxidized sulfide ore with acid solution to produce pregnant leach solution containing dissolved nickel, cobalt and ferric ions, and subsequently leaching a sulfide ore or concentrate with pregnant leach solution to produce a product liquor |
| 02/28/2008 | CA2659449A1 Improved hydrometallurgical method for the extraction of nickel from laterite ores |
| 02/27/2008 | CN101133171A Process for enhanced acid leaching of laterite ores |
| 02/27/2008 | CN101133170A Production of ferronickel |
| 02/21/2008 | WO2008019633A1 Process for treating aqueous lateritic-ore pulps in pressurized acid technology |
| 02/20/2008 | CN101126127A Method for eliminating impurity from nickel sulfate solution |
| 02/20/2008 | CN101126126A Crystallization method for nickel chloride solution |
| 02/20/2008 | CN101126123A Method for washing and processing nickel-containing iron slag |
| 02/20/2008 | CN101126122A Method for processing nickel chloride leachate |
| 02/19/2008 | CA2421780C Heat transfer in heap leaching of sulphide ores |
| 02/14/2008 | US20080038168 Solvent Extraction Process For Separating Cobalt And/Or Manganese From Impurities In Leach Solutions |
| 02/12/2008 | US7329396 leaching ores with lixiviant comprising magnesium chloride and hydrochloric acid |
| 02/06/2008 | CN100366769C Method for producing large diameter ingots of nickel base alloys |
| 02/06/2008 | CN100366315C Method and equipment for liquid-liquid extraction |
| 01/24/2008 | WO2008009433A2 Method and apparatus for reducing metalliferous material to a reduction product |
| 01/24/2008 | US20080016986 Production of Ferro-Nickel or Nickel Matte by a combined Hydrometallurgical and Pyrometallurgical Process |
| 01/23/2008 | EP1880029A1 An improved process for heap leaching of nickeliferous oxidic ores |
| 01/16/2008 | CN101104885A Normal pressure leaching method for treating low-iron nickel oxide ore |
| 01/16/2008 | CN100362118C Method and apparatus for controlling metal separation |
| 01/15/2008 | US7318914 Adding carbon during autoclaving operation; rejecting dissolved chromium |
| 01/10/2008 | WO2008003152A1 A process for the instantaneous control of precipitation of nickel and cobalt present in the leach liquor, by adjusting the ph of the solution |
| 01/10/2008 | CA2656951A1 A process for the instantaneous control of precipitation of nickel and cobalt present in the leach liquor, by adjusting the ph of the solution |
| 01/09/2008 | EP1377690B1 Method for producing large diameter ingots of nickel base alloys |
| 01/03/2008 | WO2008000810A1 Recycling of superalloys with the aid of an alkali metal salt bath |
| 01/03/2008 | US20080003154 Solvent, extraction of impurities from concentrated metal sulphate solutions |
| 01/03/2008 | CA2654516A1 Recycling of superalloys with the aid of an alkali metal salt bath |
| 01/01/2008 | US7314139 Process for sulphide concentration |
| 12/27/2007 | US20070295613 Recovery Of Metals From Oxidised Metalliferous Materials |
| 12/26/2007 | CN101094926A Extraction of nickel and cobalt from a resin eluate stream |
| 12/21/2007 | WO2007143807A1 Recycling of solids in oxidative pressure leaching of metals using halide ions |
| 12/21/2007 | CA2650043A1 Recycling of solids in oxidative pressure leaching of metals using halide ions |
| 12/20/2007 | US20070292325 Process for improving phase separations in solvent extraction circuits |
| 12/19/2007 | CN101090984A Method for the hydrometallurgical treatment of sulfide concentrate containing several valuable metals |
| 12/19/2007 | CN101090983A Leaching process in the presence of hydrochloric acid for the recovery of a value metal from an ore |