Patents for C22B 23 - Obtaining nickel or cobalt (3,818) |
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01/25/2005 | US6846346 Sulfatization process for metal extraction from sulfide ores |
01/20/2005 | WO2005005671A1 Process for recovery of nickel and cobalt by heap leaching of low grade nickel or cobalt containing material |
01/20/2005 | CA2532144A1 Process for recovery of nickel and cobalt by heap leaching of low grade nickel or cobalt containing material |
01/18/2005 | US6843896 Electrolysis and ion exchange followed by melting to produce a pure metal |
01/13/2005 | WO2004083467A3 Recovery of metal values from cermet |
01/12/2005 | CN2670374Y Filter for separating crystal cobalt carbonyl from liquid cobalt carbonyl mixture |
01/11/2005 | CA2323412C Method for transforming slag derived from non-iron metallurgy |
01/06/2005 | WO2005001362A1 High temperature process |
12/29/2004 | CN1182265C Method for reduction of nickel |
12/28/2004 | US6835228 Process of recovering valuable metals from waste secondary batteries |
12/23/2004 | US20040258591 Method and apparatus for separating metal values |
12/23/2004 | US20040255721 Heating and reduction of metal precursor compound to metal using alcoholic solvent |
12/22/2004 | EP1488016A1 Method and apparatus for separating metal values |
12/22/2004 | EP1488015A1 Process for the recovery of nickel from spent catalyst |
12/22/2004 | CN1181212C Copper-nickel slag treating method |
12/21/2004 | US6833019 Microwave assisted continuous synthesis of nanocrystalline powders and coatings using the polyol process |
12/14/2004 | US6830605 Recovery of metal values from cermet |
12/01/2004 | CN1177943C Method for leaching nickel from nickel matte |
11/25/2004 | WO2004101833A1 A process for the recovery of value metals from material containing base metal oxides |
11/25/2004 | WO2004101832A2 Microwave enhancement of the segregation roast |
11/25/2004 | WO2004101202A1 Method for recycling rare earth-transition metal based scrap, magnetic powder for absorbing radio wave and radio wave absorbing material using the same |
11/24/2004 | EP1252348B1 Iron-nickel alloy production |
11/23/2004 | CA2221930C Chloride assisted hydrometallurgical extraction of metal |
11/18/2004 | US20040228783 leaching ores with lixiviant comprising magnesium chloride and hydrochloric acid |
11/16/2004 | US6818119 Electrolysis and ion exchange followed by melting to produce pure metals |
11/16/2004 | CA2548225A1 A process for the recovery of value metals from material containing base metal oxides |
11/10/2004 | EP1129225B1 Sulfatisation process for metal extraction from sulfide ores |
11/10/2004 | CN1544666A Method for recovering nickel and aluminum from waste aluminum based nickel-containing catalyst |
11/04/2004 | US20040219082 Selective recovery of aluminium, cobalt and platinum values from a spent catalyst composition |
11/04/2004 | US20040217070 Specific gravity separation of such as magnesia from nickel sulfide |
10/27/2004 | EP1234062B1 Recovery of metals from ore by bioleaching with sulfur addition |
10/21/2004 | WO2004090176A1 Reductive ammoniacal leaching of nickel and cobalt bearing materials |
10/21/2004 | CA2521888A1 Reductive ammoniacal leaching of nickel and cobalt bearing materials |
10/20/2004 | EP1468766A1 Method for producing metal powder and metal powder, and electroconductive paste and monolithic ceramic capacitor |
10/20/2004 | EP1468122A1 Method for the separation of zinc and a second metal which does not form an anionic complex in the presence of chloride ions |
10/12/2004 | CA2348483C Recovering metals from soil |
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 | WO2004083467A2 Recovery of metal values from cermet |
09/30/2004 | US20040187643 Method for obtaining cobalt and nickel from ores and ore concentrates |
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 |
09/23/2004 | WO2004081238A1 Process for producing reduced matal and agglomerate with carbonaceous material incorporated therein |
09/22/2004 | EP1458897A1 Chromium removal from leach liquors produced during high pressure acid leaching of lateritic ores |
09/22/2004 | CN1167818C Chloride assisted hydrometallurgical extraction of copper from sulphide ore materials |
09/16/2004 | WO2004070067A3 Microwave assisted continuous synthesis of manocrystalline powders and coatings using the polyol process |
09/16/2004 | US20040177722 Recovery of metal values from cermet |
09/16/2004 | US20040177721 Recovery of metal values from cermet |
09/15/2004 | EP1456427A1 Integrated ammoniacal solvent extraction and hydrogen reduction of nickel |
09/15/2004 | EP1456426A1 A method for the recovery of cobalt |
09/15/2004 | CN1528926A Central vortex column flash smelting process |
09/09/2004 | DE10308269A1 Recovering nickel comprises loosening reduced ore with inert gas during cooling and indirectly cooling using cooling medium |
09/08/2004 | EP1453985A1 A method for precipitating iron from a zinc sulphate solution as hematite |
09/07/2004 | US6786948 Growing hyperaccumulating alyssum plant; maintaining calcium; drying, recovering |
09/01/2004 | CN1164774C Method for separating cobalt and zirconium from Co/ZrO2-SiO2 waste catalyst |
08/24/2004 | CA2270079C Recovery of nickel from bioleach solution |
08/19/2004 | WO2004070067A2 Microwave assisted continuous synthesis of manocrystalline powders and coatings using the polyol process |
08/19/2004 | US20040159187 Method for the reduction of nickel from an aqueous solution |
08/19/2004 | CA2515042A1 Microwave assisted continuous synthesis of nanocrystalline powders and coatings using the polyol process |
08/12/2004 | WO2004067787A1 Process for nickel and cobalt extraction from laterite ores |
08/12/2004 | US20040154436 Method for producing granular metal |
08/12/2004 | CA2512865A1 Process for nickel and cobalt extraction from laterite ores |
08/10/2004 | US6773485 Method for recovering catalytic metals using a porous metal filter |
07/28/2004 | CN1516744A Method for producing granular metal |
07/07/2004 | EP0948655B1 Recovery of nickel from bioleach solution |
07/07/2004 | CN1156590C Method for reducing non-ferrous metal content in slag in the production of non-ferrous metals occurring in suspension smelting furnace |
07/01/2004 | WO2004055225A1 A process for extraction of nickel from low grade chromite ore |
06/29/2004 | US6755890 Positioning baffles from roof downwards forcing small particle metallurgical coke to settle in reduction zone |
06/23/2004 | CN1506182A Process of producing superfine nickel powder added into active matter for nickel power cell |
06/10/2004 | WO2004048621A1 Production of metals and alloys using solid carbon produced from carbon-containing gas |
06/09/2004 | EP1425428A2 Method for obtaining cobalt and nickel from ores and ore concentrates |
06/09/2004 | CN1503850A Method for producing large diameter ingots of nickel base alloys |
06/08/2004 | US6746653 Process for recovering catalyst transition metals from salt-containing reaction mixtures |
06/01/2004 | CA2301097C Chloride assisted hydrometallurgical extraction of nickel and cobalt from sulphide or laterite ores |
06/01/2004 | CA2301096C Chloride assisted hydrometallurgical extraction of copper from sulphide ore materials |
05/27/2004 | US20040102658 For recovering rhodium catalysts from homogeneously catalysed hydroformylation reactions of olefins with carbon monoxide |
05/26/2004 | EP1268105B1 Method for manufacturing metal parts |
05/26/2004 | CN1151290C Electromagnetic filter method for purifying molten aluminium and aluminium alloy |
05/25/2004 | US6740290 Converting impurity divalent copper ions in aqueous solution of cobalt chloride to monovalent copper ions using hydrochloric acid, separating monovalent copper ions using ion exchange resins |
05/13/2004 | DE10251163A1 Process for recovering transition metals from organic solvents acting as catalysts comprises using ligand systems to desorb the metals from sulfur-containing exchange materials, and expelling the exchange materials with heterocycles |
05/11/2004 | US6733564 Leaching with sulphuric acid in presence of small amount of an additive |
05/06/2004 | WO2002018663A8 Selective recovery of aluminium, cobalt and platinum values from a spent catalyst composition |
04/29/2004 | WO2004007775A3 Direct melting and refining of metal oxide material |
04/27/2004 | US6726887 Composition of oxime and hydroxy-ester for the solvent extraction of metals |
04/21/2004 | EP1409753A1 Solvent extraction of impurities from concentrated metal sulphate solutions |
04/15/2004 | WO2004031422A1 Heap leaching base metals from oxide ores |
04/13/2004 | US6719858 Large diameter ingots of nickel base alloys |
04/08/2004 | US20040067183 Using sulfate; neutralization, leaching, electrolysis |
04/08/2004 | US20040067152 Mixing metal particles with binder; compaction; removal binder with reducing gas; powder metallurgy |
04/07/2004 | EP1405924A1 Method for producing granular metal |
03/30/2004 | US6712874 Continuously reducing aqueous solution of nickel sulfate in pressurized space using hydrogen as reducing agent, at specified temperature and hydrogen pressure in autoclave divided by partitions into sections, each equipped with mixer |
03/24/2004 | CN1143002C Method for extracting anions of IVB to VIII metals using alkyl-substituted 1,3-diaminopropanes |
03/23/2004 | US6709641 Using dialkyl-substituted 1,3-diaminopropanes; high loading capacity |
03/18/2004 | WO2004022795A1 Process for recovering platinum group metals from material containing base metals |
03/18/2004 | US20040053185 Method and apparatus for feeding solid material and oxidizing gas into a suspension smelting furnace |
03/18/2004 | US20040052707 Solvent extraction of impurities from concentrated metal sulphate solutions |
03/18/2004 | CA2497993A1 Process for recovering platinum group metals from material containing base metals |
03/11/2004 | WO2004020714A1 Method for removal of metal contaminants |
03/11/2004 | US20040049176 Cryoplasty device and method |
03/11/2004 | US20040047780 Extraction of a base metal such as Ni, Co or Zn, from a sulphide ore or concentrate containing copper and the base metal comprises the step of subjecting the ore or concentrate to pressure oxidation in the presence of oxygen and an acidic |
03/11/2004 | US20040045405 The process of the present invention recovers platinum group metal(s), such as platinum and palladium, from PGM-containing materials containing base metals, such as copper and nickel. The process controls sulfur levels by using solvent extraction |