Patents for C01G 51 - Compounds of cobalt (4,198)
12/1992
12/10/1992WO1992021811A1 Buff rutile pigment compositions
12/10/1992CA2109959A1 Buff rutile pigment compositions
12/09/1992EP0517448A1 Fibrous composite metal hydroxide and process for the production thereof
12/06/1992CA2043892A1 Lithium transition metal oxide
12/01/1992US5168095 Superconducting ceramics
11/1992
11/04/1992EP0511632A1 Nonaqueous electrolyte secondary battery
11/04/1992CN1018912B Process for preparation of promoter for bonding rubber-steel wire
11/03/1992US5160712 With cobalt and nickel, used as cathodes
10/1992
10/24/1992WO1992018425A1 Method for the preparation of limn2o4 and licoo2 intercalation compounds for use in secondary lithium batteries
10/13/1992US5154757 Method of making pure cobalt metal powder substantially free of divalent cationic impurities
09/1992
09/23/1992EP0504678A1 Lithium secondary battery
09/22/1992US5149516 Partial oxidation of methane over perovskite catalyst
09/03/1992WO1992014494A1 Layered mixed metal hydroxides for the stabilization of radioactive colloids
08/1992
08/12/1992EP0498566A1 Composite metal hydroxide and its use
08/11/1992US5137709 Layered mixed metal hydroxides for the stabilization of radioactive colloids
08/04/1992US5135732 Method for preparation of LiMn2 O4 intercalation compounds and use thereof in secondary lithium batteries
07/1992
07/14/1992US5130107 Minimizing cobalt catalyst loss in the production of alcohols by hydroformylation of olefins
06/1992
06/25/1992DE4122586C1 Prodn. of e.g. potassium beta- or beta alumina powder giving ceramics of good ion conduction etc. - by attrition of cubic densely packed alumina with dopant, calcination in atmos. contg. oxygen@, potassium oxide or rubidium oxide then in atmos. contg. oxygen@
06/17/1992CN1017101B Superconducting material and method of manufacturing same
06/02/1992US5118659 Rare earth, alkaline earth and transition metal oxides, solubilizing, atomizing, calcining
05/1992
05/20/1992EP0486236A1 Zinc sulfide optical elements
05/06/1992EP0484187A2 Positive active material for non-aqueous electrolyte secondary battery
05/06/1992EP0483654A1 Process and apparatus for the preparation of metal oxides powders for ceramic masses
05/06/1992EP0483259A1 COMPOSITIONS DERIVED FROM Bi4V2O11.
05/05/1992US5110961 Catalytic process for the synthesis of an alcohol, new metal complexes and process for the synthesis of these complexes
04/1992
04/29/1992EP0482444A1 Process for preparing zinc oxide pigments doped with metal oxides
04/07/1992US5102633 Method for reducing impurities in hexammine cobalt halide compounds
03/1992
03/17/1992US5096642 Process for producing a high density ceramic of perovskite
03/10/1992CA1297131C Process for the isolation of p-hydroxybenzaldehyde
03/03/1992US5093134 Tungstates
02/1992
02/25/1992US5091012 Cobalt titanate particles and process for producing the same
02/18/1992CA1295807C Coprecipitation method for the manufacture of zinc oxyde based doped powders
02/11/1992CA1295486C Extraction of transition metals from organic solutions
01/1992
01/23/1992WO1992000808A1 Method of intercalation of perovskitic particles in the form of pillars into layered clays
01/08/1992EP0465075A1 Cobalt titanate particles and process for producing the same
12/1991
12/30/1991WO1992000078A1 Antiviral agents containing heteropolytungstate
12/30/1991CA2086263A1 Antiviral agents containing heteropolytungstate
12/27/1991EP0462575A2 Cathode active material for lithium secondary batteries
12/12/1991DE4118750A1 Sinterable powder prodn. from polymerisable metal carboxylate cpds. - by polymerising homogeneous mixt. and heating, useful for making special ceramics
12/11/1991EP0460714A2 Preparation process for polar and apolar superparamagnetic fluids
12/10/1991US5071827 Production of superconductor materials
11/1991
11/27/1991EP0458020A1 Non-chromated oxide coating for aluminum substrates
10/1991
10/15/1991US5057299 Method for making beta cobaltous hydroxide
10/15/1991CA1290575C Leaching cobalt, molybdenum, nickel, and vanadium from spent hydroprocessing catalysts
10/09/1991CN1055205A Solid multi-component membranes, electrochemical reactor components reactor for oxidation reactions
09/1991
09/18/1991EP0446772A1 Fluorinated beta-ketoiminato metal complexes
09/13/1991CA2037538A1 Fluorinated beta-ketoiminato metal complexes
08/1991
08/13/1991US5039502 Dissolving metals in nitric acid containing nitrous acid-forming additive; inhibition of ammonium nitrate formation
07/1991
07/31/1991EP0438902A2 Electrochemical reactors and multicomponent membranes useful for oxidation reactions
07/02/1991US5028403 Metal recovery with monothiophosphinic acids
06/1991
06/12/1991EP0432125A1 Recovery of cobalt catalyst values
06/11/1991US5023067 Aqueous slurry consisting of homogeneous dispersion of coprecipitated metal carbonates and quaternary ammonium salts
05/1991
05/22/1991EP0428389A2 Process for producing metal hydroxide sol
05/22/1991EP0428387A2 Process for producing powder material for lead perovskite ceramic
04/1991
04/30/1991CA1283616C Process of thermally cracking heavy petroleum oil
01/1991
01/29/1991US4988671 Roasting in molecular oxygen a bimetallic complex, precipitate d from an aqueous solution. Forming inorganic fibers by annea ling Lanthanide and group 2a metal alloys
01/22/1991CA1279197C Cobalt recovery method
01/19/1991WO1991001274A1 COMPOSITIONS DERIVED FROM Bi4V2O¿11?
01/02/1991CN1048169A Novel solid multi-component membranes, electrochemical reactor and use of membranes and reactor for oxidation reactions
12/1990
12/18/1990US4978515 Dispersion of solid, powdered precursor in a fluid polymer, heating to burn off polymer
12/05/1990EP0400311A2 Metal recovery with monothiophosphinic acids
12/04/1990US4975253 Solvent extraction of nickel using hydroxamic acids
11/1990
11/29/1990WO1990014307A1 Process for manufacturing powdered ceramic oxides
11/28/1990EP0399833A1 Novel solid multi-component membranes, electrochemical reactor and use of membranes and reactor for oxidation reactions
11/13/1990WO1990013605A1 Magnetic materials and products made therefrom
11/13/1990CA2054741A1 Magnetic materials and products made therefrom
10/1990
10/24/1990EP0393287A1 Process for treating scrap containing rare earth and cobalt
10/23/1990US4965116 Precipitation of cobalt hydroxide by sodium hypochlorite leaving nickel in solution
10/23/1990US4964997 Dissolving residue with nitric acid, extracting with water-insoluble neutral organophosphoric extractant
10/23/1990US4964996 Liquid/liquid extraction of rare earth/cobalt values
10/03/1990EP0390365A1 Improvements in chemical compounds
09/1990
09/26/1990EP0364463A4 Separation and recovery of nickel and cobalt in ammoniacal systems
09/19/1990EP0388245A1 Agent resistant to AIDS virus
09/17/1990CA2012153A1 Chemical compounds
09/11/1990US4956154 Selective removal of chromium, nickel, cobalt, copper and lead cations from aqueous effluent solutions
09/05/1990EP0261590B1 Process for the preparation of metal oxides or mixed metal oxides
09/04/1990US4954466 Solvent extraction with trialkylamine containing hydrocarbon from n-acetyliminodiacetic acid
08/1990
08/22/1990EP0383122A1 Process for the preparation of aquous metal nitrate solutions
08/17/1990CA2009667A1 Process for the preparation of metal nitrates
07/1990
07/18/1990EP0377821A1 Method for the preparation of particulate magnetic hexagonal ferrites by spray-drying barium salts and iron oxides, and their use
06/1990
06/27/1990CN1043310A Minimising catalyst loss in production of alcohols
06/13/1990EP0372925A1 Minimising catalyst loss in the production of alcohols
06/12/1990US4933054 Solid electrolyte with coating on one surface of conductive metal, metal oxide or mixture, second surface coated with metal, metal oxide or mixture
06/08/1990CA2004894A1 Minimising catalyst loss in the production of alcohols
05/1990
05/22/1990US4927794 Aqueous, ammonia, ammonium salt, hydrogen peroxide
05/15/1990US4925647 Process for the production of metal oxides or metal mixed oxides
05/02/1990EP0365719A2 Preparation of doped materials containing barium or strontium and iron
04/1990
04/25/1990EP0364463A1 Separation and recovery of nickel and cobalt in ammoniacal systems.
04/25/1990EP0240530B1 Particulate compositions of ferromagnetic metal oxalates in the form of submicronic needle shaped particles, preparation and application thereof
04/17/1990US4918035 Process for the preparation of complex perovskite type compounds
03/1990
03/21/1990CN1040572A Manufacturing method for ceramics and products thereof
03/13/1990US4908462 Cobalt recovery method
02/1990
02/28/1990EP0355252A2 Manufacturing method for ceramics and products thereof
02/13/1990US4900522 Separation of nickel and cobalt from sulfate solutions by solvent extraction
01/1990
01/16/1990US4894185 Buffers to cause precipitation
12/1989
12/28/1989DE3920144A1 Orbital umgelagerte, monoatomare elemente, verfahrenzu ihrer herstellung und ihre weiterverarbeitung Orbital rearranged monoatomic, elements, verfahrenzu their production and their further processing
12/20/1989CN1038117A Preparation of promotor for bonding rubber-steel wire
11/1989
11/21/1989US4882183 Coating with supersaturated liquid, fluorine additive
11/21/1989US4882132 Using hydrocarbon solvent
11/14/1989US4880546 Recovery of transition metals from aqueous solutions
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