Patents for C22B 23 - Obtaining nickel or cobalt (3,818)
01/2005
01/25/2005US6846346 Sulfatization process for metal extraction from sulfide ores
01/20/2005WO2005005671A1 Process for recovery of nickel and cobalt by heap leaching of low grade nickel or cobalt containing material
01/20/2005CA2532144A1 Process for recovery of nickel and cobalt by heap leaching of low grade nickel or cobalt containing material
01/18/2005US6843896 Electrolysis and ion exchange followed by melting to produce a pure metal
01/13/2005WO2004083467A3 Recovery of metal values from cermet
01/12/2005CN2670374Y Filter for separating crystal cobalt carbonyl from liquid cobalt carbonyl mixture
01/11/2005CA2323412C Method for transforming slag derived from non-iron metallurgy
01/06/2005WO2005001362A1 High temperature process
12/2004
12/29/2004CN1182265C Method for reduction of nickel
12/28/2004US6835228 Process of recovering valuable metals from waste secondary batteries
12/23/2004US20040258591 Method and apparatus for separating metal values
12/23/2004US20040255721 Heating and reduction of metal precursor compound to metal using alcoholic solvent
12/22/2004EP1488016A1 Method and apparatus for separating metal values
12/22/2004EP1488015A1 Process for the recovery of nickel from spent catalyst
12/22/2004CN1181212C Copper-nickel slag treating method
12/21/2004US6833019 Microwave assisted continuous synthesis of nanocrystalline powders and coatings using the polyol process
12/14/2004US6830605 Recovery of metal values from cermet
12/01/2004CN1177943C Method for leaching nickel from nickel matte
11/2004
11/25/2004WO2004101833A1 A process for the recovery of value metals from material containing base metal oxides
11/25/2004WO2004101832A2 Microwave enhancement of the segregation roast
11/25/2004WO2004101202A1 Method for recycling rare earth-transition metal based scrap, magnetic powder for absorbing radio wave and radio wave absorbing material using the same
11/24/2004EP1252348B1 Iron-nickel alloy production
11/23/2004CA2221930C Chloride assisted hydrometallurgical extraction of metal
11/18/2004US20040228783 leaching ores with lixiviant comprising magnesium chloride and hydrochloric acid
11/16/2004US6818119 Electrolysis and ion exchange followed by melting to produce pure metals
11/16/2004CA2548225A1 A process for the recovery of value metals from material containing base metal oxides
11/10/2004EP1129225B1 Sulfatisation process for metal extraction from sulfide ores
11/10/2004CN1544666A Method for recovering nickel and aluminum from waste aluminum based nickel-containing catalyst
11/04/2004US20040219082 Selective recovery of aluminium, cobalt and platinum values from a spent catalyst composition
11/04/2004US20040217070 Specific gravity separation of such as magnesia from nickel sulfide
10/2004
10/27/2004EP1234062B1 Recovery of metals from ore by bioleaching with sulfur addition
10/21/2004WO2004090176A1 Reductive ammoniacal leaching of nickel and cobalt bearing materials
10/21/2004CA2521888A1 Reductive ammoniacal leaching of nickel and cobalt bearing materials
10/20/2004EP1468766A1 Method for producing metal powder and metal powder, and electroconductive paste and monolithic ceramic capacitor
10/20/2004EP1468122A1 Method for the separation of zinc and a second metal which does not form an anionic complex in the presence of chloride ions
10/12/2004CA2348483C Recovering metals from soil
10/06/2004CN1169943C Intermediate thermophilic acidophilic thiobacillu strin and its application
10/05/2004US6800111 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
09/2004
09/30/2004WO2004083467A2 Recovery of metal values from cermet
09/30/2004US20040187643 Method for obtaining cobalt and nickel from ores and ore concentrates
09/29/2004EP1194602B1 Method for reducing non-ferrous metal content in slag in the production of non-ferrous metals occurring in suspension smelting furnace
09/23/2004WO2004081238A1 Process for producing reduced matal and agglomerate with carbonaceous material incorporated therein
09/22/2004EP1458897A1 Chromium removal from leach liquors produced during high pressure acid leaching of lateritic ores
09/22/2004CN1167818C Chloride assisted hydrometallurgical extraction of copper from sulphide ore materials
09/16/2004WO2004070067A3 Microwave assisted continuous synthesis of manocrystalline powders and coatings using the polyol process
09/16/2004US20040177722 Recovery of metal values from cermet
09/16/2004US20040177721 Recovery of metal values from cermet
09/15/2004EP1456427A1 Integrated ammoniacal solvent extraction and hydrogen reduction of nickel
09/15/2004EP1456426A1 A method for the recovery of cobalt
09/15/2004CN1528926A Central vortex column flash smelting process
09/09/2004DE10308269A1 Recovering nickel comprises loosening reduced ore with inert gas during cooling and indirectly cooling using cooling medium
09/08/2004EP1453985A1 A method for precipitating iron from a zinc sulphate solution as hematite
09/07/2004US6786948 Growing hyperaccumulating alyssum plant; maintaining calcium; drying, recovering
09/01/2004CN1164774C Method for separating cobalt and zirconium from Co/ZrO2-SiO2 waste catalyst
08/2004
08/24/2004CA2270079C Recovery of nickel from bioleach solution
08/19/2004WO2004070067A2 Microwave assisted continuous synthesis of manocrystalline powders and coatings using the polyol process
08/19/2004US20040159187 Method for the reduction of nickel from an aqueous solution
08/19/2004CA2515042A1 Microwave assisted continuous synthesis of nanocrystalline powders and coatings using the polyol process
08/12/2004WO2004067787A1 Process for nickel and cobalt extraction from laterite ores
08/12/2004US20040154436 Method for producing granular metal
08/12/2004CA2512865A1 Process for nickel and cobalt extraction from laterite ores
08/10/2004US6773485 Method for recovering catalytic metals using a porous metal filter
07/2004
07/28/2004CN1516744A Method for producing granular metal
07/07/2004EP0948655B1 Recovery of nickel from bioleach solution
07/07/2004CN1156590C Method for reducing non-ferrous metal content in slag in the production of non-ferrous metals occurring in suspension smelting furnace
07/01/2004WO2004055225A1 A process for extraction of nickel from low grade chromite ore
06/2004
06/29/2004US6755890 Positioning baffles from roof downwards forcing small particle metallurgical coke to settle in reduction zone
06/23/2004CN1506182A Process of producing superfine nickel powder added into active matter for nickel power cell
06/10/2004WO2004048621A1 Production of metals and alloys using solid carbon produced from carbon-containing gas
06/09/2004EP1425428A2 Method for obtaining cobalt and nickel from ores and ore concentrates
06/09/2004CN1503850A Method for producing large diameter ingots of nickel base alloys
06/08/2004US6746653 Process for recovering catalyst transition metals from salt-containing reaction mixtures
06/01/2004CA2301097C Chloride assisted hydrometallurgical extraction of nickel and cobalt from sulphide or laterite ores
06/01/2004CA2301096C Chloride assisted hydrometallurgical extraction of copper from sulphide ore materials
05/2004
05/27/2004US20040102658 For recovering rhodium catalysts from homogeneously catalysed hydroformylation reactions of olefins with carbon monoxide
05/26/2004EP1268105B1 Method for manufacturing metal parts
05/26/2004CN1151290C Electromagnetic filter method for purifying molten aluminium and aluminium alloy
05/25/2004US6740290 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
05/13/2004DE10251163A1 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
05/11/2004US6733564 Leaching with sulphuric acid in presence of small amount of an additive
05/06/2004WO2002018663A8 Selective recovery of aluminium, cobalt and platinum values from a spent catalyst composition
04/2004
04/29/2004WO2004007775A3 Direct melting and refining of metal oxide material
04/27/2004US6726887 Composition of oxime and hydroxy-ester for the solvent extraction of metals
04/21/2004EP1409753A1 Solvent extraction of impurities from concentrated metal sulphate solutions
04/15/2004WO2004031422A1 Heap leaching base metals from oxide ores
04/13/2004US6719858 Large diameter ingots of nickel base alloys
04/08/2004US20040067183 Using sulfate; neutralization, leaching, electrolysis
04/08/2004US20040067152 Mixing metal particles with binder; compaction; removal binder with reducing gas; powder metallurgy
04/07/2004EP1405924A1 Method for producing granular metal
03/2004
03/30/2004US6712874 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
03/24/2004CN1143002C Method for extracting anions of IVB to VIII metals using alkyl-substituted 1,3-diaminopropanes
03/23/2004US6709641 Using dialkyl-substituted 1,3-diaminopropanes; high loading capacity
03/18/2004WO2004022795A1 Process for recovering platinum group metals from material containing base metals
03/18/2004US20040053185 Method and apparatus for feeding solid material and oxidizing gas into a suspension smelting furnace
03/18/2004US20040052707 Solvent extraction of impurities from concentrated metal sulphate solutions
03/18/2004CA2497993A1 Process for recovering platinum group metals from material containing base metals
03/11/2004WO2004020714A1 Method for removal of metal contaminants
03/11/2004US20040049176 Cryoplasty device and method
03/11/2004US20040047780 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
03/11/2004US20040045405 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
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