Patents for C01G 37 - Compounds of chromium (1,613)
04/2002
04/23/2002US6376127 Rechargeable lithium battery containing a complex sulfide active material
04/23/2002CA2359314A1 Method for producing cathode active material and method for manufacturing nonaqueous electrolyte battery
04/18/2002US20020044908 Method for liquid chromate ion and oxy-metal ions removal and stabilization
04/10/2002CN1343625A Process for preparing nm chromium nitride powder by direct nitridation of nano chromium oxide
04/03/2002CN1342613A Process for preparing Cr2O3 from waste dregs of chromium hydroxide
03/2002
03/28/2002US20020036281 Spin electronic material and fabrication method thereof
03/27/2002EP1190988A2 Bismuth-containing laser markable compositions and methods of making and using same
03/27/2002EP1189841A1 Continuous calcination of mixed metal oxides
03/19/2002US6359183 Treatment of chromium oxide and catalytic manufacture of vinyl fluoride
03/14/2002US20020032119 Adsorbent for nitrogen oxides and its treatment method
03/07/2002WO2001068244A3 Catalytic dehydrogenation processes and chromium catalysts for use therein
01/2002
01/29/2002CA2031010C Method of making highly sinterable lanthanum chromite powder
12/2001
12/20/2001WO2001052985A3 Gel catalysts and methods for their use in catalytic dehydrogenation processes
11/2001
11/29/2001US20010046942 Dehydrogenation catalysts; containing 1) Al, Mg, or Si and 2) Zn, Sn, Rh, or an alkali or alkaline earth metal
11/08/2001WO2001083396A1 Substituted barium titanate and barium strontium titanate ferroelectric compositions
11/08/2001CA2403894A1 Substituted barium titanate and barium strontium titanate ferroelectric compositions
11/07/2001EP0831965B1 Treatment of chromium oxide and catalytic manufacture of vinyl fluoride
11/07/2001EP0815055B1 Yttrium and/or rare earths aluminates having perovskite structure, preparation thereof and use as pigments
10/2001
10/16/2001US6303091 When a raw material is calcined in hydrogen halide or chlorine gas, metal oxide containing less agglomerated particles and having a narrow particle size distribution and a uniform particle shape is obtained
10/04/2001US20010026880 Layer applied to the substrate incorporates inorganic needle-shaped pigment as a supporting pigment
09/2001
09/27/2001WO2001070631A1 Porous, doped titanium oxides as selective oxidation and dehydration catalysts
09/27/2001DE10013934A1 Porous mixed oxides, useful for the selective oxidation of hydrocarbons, contain titanium dioxide and an oxide that is uniformly dispersed and domain free
09/26/2001CN1071715C Process for producing pure ammonium metallates
09/26/2001CN1071707C Process for preparing potassium sulfate with chromium containing sodium sulfate
09/20/2001WO2001068244A2 Catalytic dehydrogenation processes and chromium catalysts for use therein
09/19/2001CN1071290C Conversion coatings on silicon carbide and products therefrom
08/2001
08/29/2001EP0761601B1 Process for preparing precipitate of perovskite composite oxide
08/29/2001CN1310132A Clean production process of ammonium chromate crystal
08/16/2001EP0832040B1 Process for producing pure ammonium metallates
07/2001
07/26/2001WO2001053204A1 A method for treatment of hexavalent chromium compounds in waste water originating from processing of metals
07/26/2001WO2001053198A1 Preparation of lithium-containing materials
07/26/2001WO2001052985A2 Gel catalysts and methods for their use in catalytic dehydrogenation processes
07/25/2001EP1118384A2 Treatment of chromium oxide; use thereof in catalytic manufacture of vinyl fluoride
06/2001
06/20/2001CN1067349C Detoxication utilization for barium and chromium slag
05/2001
05/15/2001US6231963 Magnetic recording media
03/2001
03/07/2001CN1062885C Coloured pigments based on oxide-nitrides, preparation and use thereof
03/06/2001US6198119 Ferroelectric element and method of producing the same
02/2001
02/28/2001CN1062528C Clean production method for sodium chlomate
02/20/2001US6190508 Method of oxidizing nitride material enhanced by illumination with UV light at room temperature
01/2001
01/09/2001US6171563 Supported liquid membrane process for chromium removal and recovery
11/2000
11/21/2000US6150290 Ceramic material for use in the separation of oxygen from gas mixture
11/21/2000CA2106117C Ceric oxide based composition, its preparation and its utilisation
11/02/2000WO2000064813A1 Continuous calcination of mixed metal oxides
10/2000
10/19/2000WO2000024676A9 A molecular decomposition process for the synthesis of nanosize ceramic and metallic powders
09/2000
09/27/2000CN1267639A Chromium sesquioxide producing process
09/26/2000US6123907 Method and apparatus for performing continuous hydrothermal synthesis
09/20/2000CN1056592C Method for producing sodium chromate
07/2000
07/25/2000US6093234 Process for preparing submicron/nanosize ceramic powders from precursors incorporated within a polymeric foam
07/19/2000EP1020544A2 Reactor for electrolytic reduction of CR+6
07/13/2000WO2000041256A1 Electroactive material for secondary batteries and methods of preparation
07/12/2000EP0762930B1 Absorbent and process for removing sulfur oxides from a gaseous mixture
06/2000
06/28/2000CN1257837A Formulation of compound potassium bichromate and its preparing process
06/27/2000US6080232 Spray-pyrolizing predried spinel-forming metal oxides, then separating resulting pigment from the pyrolysis gas
05/2000
05/17/2000CN1052461C Method for manufacturing alkali chromates from chromium ore
05/04/2000WO2000024676A1 A molecular decomposition process for the synthesis of nanosize ceramic and metallic powders
04/2000
04/12/2000CN1051252C Waste chrome-base fluorination catalyst treating process
03/2000
03/07/2000US6034289 Treatment of chromium oxide and catalytic manufacture of vinyl fluoride
02/2000
02/02/2000EP0818040B1 Magnetic recording media
02/02/2000CN1048960C Method for preparing sodium chromate chamotte
01/2000
01/25/2000US6017505 Method of producing inorganic aerogels under subcritical conditions
01/12/2000EP0868402B1 Method of producing inorganic aerogels under subcritical conditions
01/12/2000CN1240763A Process for preparing sodium chlomate and sodium bichromate by pure-oxygen alkali fusion method
11/1999
11/17/1999CN1046489C Prepn. of dichromium trioxide by carbon reduction process and comprehensive recovery
11/09/1999US5981445 Reacting reactive oxides mixture with water in aqueous solution to form metal hydroxide slurry, reacting formed hydroxide slurry with alkaline metal salt and an other metal salt, spray freezing, freeze-drying, calcining
10/1999
10/27/1999CN1232786A Technological process of preparing potassium sulfate with chromium containing sodium sulfate
10/26/1999US5972301 Minimizing emission of hexavalent chromium from combustion sources
10/06/1999EP0947484A1 Ceramic material for use in the separation of oxygen from gas mixture
08/1999
08/25/1999CN1226512A Clean production of sodium chlomate
07/1999
07/27/1999US5928619 Treating exhaust gases from internal combustion engines
07/21/1999CN1044222C Method for comprehensive utilization of sodium sulfate containing chromium
07/06/1999US5919728 Catalyst for the fluorination of halogenated hydrocarbons
06/1999
06/22/1999US5914293 Absorbent and process for removing sulfur oxides from a gaseous mixture
06/08/1999US5910298 Method of and apparatus for performing continuous hydrothermal synthesis
06/02/1999EP0689478B1 Catalyst for the synthesis of higher alcohols
05/1999
05/25/1999CA2089950C Sunscreen agents
04/1999
04/13/1999US5894016 Reacting the mixture of tin, a second metal or metal sulfide with a superstoichiometric quantity of solid phase sulfur with ammonium or tin chloride as an exothermic reaction to form mixed sulfide or tin sulfide in pressureless condition
04/06/1999US5891407 Process for producing pure ammonium metallates
01/1999
01/27/1999CN1041853C Transparent polycrystalline garnets
01/13/1999EP0666238B1 Metal oxide powder and process for producing the same
01/13/1999CN1041614C Method of producing mixed metal oxide powder and mixed metal oxide powder produced according to said method
12/1998
12/23/1998CN1202464A Process for producing chromic anhydride
12/09/1998CN1041078C Process for calcium-less granulating roasting chromite
12/02/1998CN1040969C Composite metal oxide powder and process for producing same
10/1998
10/28/1998EP0873969A1 Process for the preparation of a ceramic powder for powder coating and use of the process for preparing a component of a high temperature fuel cell
10/21/1998CN1040314C Metal oxide powder and process for producing same
10/20/1998US5824278 Metal rare earth metal oxide complexes with hydrofluoric acid with precipitation
10/08/1998DE19719974C1 High temperature fuel cell stack disintegration
10/07/1998EP0868402A1 Method of producing inorganic aerogels under subcritical conditions
09/1998
09/22/1998US5811071 Refractory oxides
07/1998
07/28/1998CA1339973C Process for the production of an electrolyte for the production of alkali dichromates and chromic acid
07/15/1998CN1187802A Process for producing pure ammonium metallates
06/1998
06/16/1998US5766336 Colored pigments based on oxide-nitrides, the preparation and use thereof
05/1998
05/20/1998EP0842990A2 Spherical colour pigments, process for their preparation and their use
05/13/1998CN1181353A Method for producing sodium chromate
05/12/1998US5750020 Cyclic, fluidized catalytic-cracking of hydrocarbon feedstock including oxides of nitrogen and sulfur, converting nitrogen oxide in regeneration zone by exposing gas stream to a catalyst bed of microcrystalline mixed oxides
04/1998
04/21/1998US5741748 Catalyst production for use in a process for fluorination of hydrocarbons
04/08/1998EP0666239B1 Composite metal oxide powder and process for producing the same
04/01/1998EP0832040A1 Process for producing pure ammonium metallates
04/01/1998EP0831965A1 Treatment of chromium oxide and catalytic manufacture of vinyl fluoride
04/01/1998CN1177522A Catalyst for fluorination of halogenated hydrocarbon
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