Patents for C01G 25 - Compounds of zirconium (4,186)
02/2000
02/02/2000CN1049065C Removal of radioactivity from ziron
01/2000
01/25/2000US6017629 Amorphous microporous oxidic solids, process for producing them and their use
01/25/2000US6017505 Method of producing inorganic aerogels under subcritical conditions
01/19/2000EP0971855A1 CERIUM OXIDES, ZIRCONIUM OXIDES, Ce/Zr MIXED OXIDES AND Ce/Zr SOLID SOLUTIONS HAVING IMPROVED THERMAL STABILITY AND OXYGEN STORAGE CAPACITY
01/19/2000CN1241989A Cerium and zirconium oxides, mixed oxides and solid solutions having improved thermal stability for catalysis of exhaust gas systems and methods of producing
01/19/2000CN1241988A Composite zirconium-cerium oxide, process for the preparation thereof, and cocatalyst for cleaning exhaust gas
01/19/2000CN1048473C Process for the synthesis of crystalline ceramic powders of perovskite compounds
01/12/2000EP0868402B1 Method of producing inorganic aerogels under subcritical conditions
01/05/2000EP0968319A1 Multiple vaporizer reagent supply system for chemical vapor deposition utilizing dissimilar precursor compositions
01/04/2000CA2175814C antiperspirants containing aerogel particles
12/1999
12/29/1999CN1047767C Super-fine trace element biochemical mixture and its foam plastic product contained the same
12/28/1999US6007870 Dissolving crystalline ceramic powder in water so as to leave core portion of ceramic powder while heating; depositing coating of ceramic powder dissolved in the water on and around surfaces of core; firing to form shell around core cooling
12/15/1999EP0963951A1 Cerium- and zirconium-based mixed oxide, method of producing same and catalyst material for exhaust gas purification
12/14/1999CA2133702C Process for controlling sulfate ions in saline solutions
12/14/1999CA2111892C Cerium-zirconium oxidy based composition, preparation method and use thereof
12/07/1999US5998523 Controlling particle size
11/1999
11/30/1999US5993643 Catalyst comprising a hydrogenation/dehydrogenation catalytic component and an acidic solid catalytic component comprising a group ivb metal oxide modified with an oxyanion of a group vib metal.
11/25/1999WO1999059754A1 Process for the production of ultrafine powders
11/16/1999US5985113 Modular ceramic electrochemical apparatus and method of manufacture therefor
11/10/1999EP0955267A1 Composite zirconium-cerium oxide, process for the preparation thereof, and cocatalyst for cleaning exhaust gas
10/1999
10/27/1999EP0644914B1 Inorganic fillers and organic matrix materials whose refractive index is adapted
10/27/1999CN1232787A Superstrong alkali process to synthesize superfine zirconium dioxide powder at low temperature
10/26/1999US5972245 Basic layered lattice compounds
10/20/1999EP0950022A1 Composition with base of cerium oxide or cerium and zirconium oxides, in extruded form, method of preparation and use as catalyst
10/06/1999EP0946420A1 Cerium and zirconium oxides, mixed oxides and solid solutions having improved thermal stability for catalysis of exhaust gas systems and methods of producing
10/06/1999EP0946291A1 Catalyst composition containing oxygen storage components
10/06/1999EP0946289A1 Ceric oxide washcoat
09/1999
09/28/1999US5958355 Process for reacting a zirconia based material
09/28/1999CA2150295C Rare earth-based dispersible compound, colloid suspension obtained from this compound, processes for their preparation and their use in catalyst production
09/22/1999EP0710152B1 Process for producing a modified oxide catalyst
09/22/1999CN1045192C Process for preparing high-purity zirconium oxychloride crystals
09/01/1999EP0939434A1 Method for fabricating ferroelectric thin films using a sol-gel technique
08/1999
08/31/1999US5945370 Composite oxide having oxygen absorbing and desorbing capability and method for preparing the same
08/26/1999WO1999042200A1 Aerosol method and apparatus for making particulate products
08/17/1999CA2150772C Ultraviolet-protecting cosmetic compositions made of a synergetic mix of filters and nanopigments, and uses thereof
08/10/1999US5935275 Process for producing weakly agglomerated nanoscalar particles
08/10/1999CA2115305C Process for synthesizing zirconium and cerium mixed oxides compositions; compositions thus obtained and use thereof
08/10/1999CA2115304C Process for preparing zirconium and cerium mixed oxides compositions
07/1999
07/29/1999WO1999037705A1 Block polymer processing for mesostructured inorganic oxide materials
07/29/1999DE19752080A1 Multi-component oxide ceramic material
07/28/1999EP0932214A2 Modular ceramic electrochemical apparatus and method of manufacture therefor
07/21/1999EP0930271A2 Compositions based on mixed oxides of zirconium and cerium and use of these compositions
07/19/1999CA2224090A1 Zirconium and hafnium separation in sulfate solutions using continuous ion exchange chromatography
07/07/1999CN1222127A Cerium oxide and zirconium oxide based compsn., method of prepn.and utilisation in catalysis
07/06/1999US5919727 Ceric oxide washcoat
06/1999
06/09/1999EP0921561A2 Composition for film formation and film
06/08/1999US5910462 Heating zironia-silica to a liquid melt, quenching to effect spinodal decomposition; annealing to transform zirconia to monoclinic form, leaching out silica phase; three dimensional porous interpenetrating network; alkali resistant supports
06/08/1999US5910298 Method of and apparatus for performing continuous hydrothermal synthesis
06/08/1999CA2016345C Mcroporous zircone and process for preparation thereof
06/01/1999US5908802 Nonaqueous solution synthesis process for preparing oxide powders of lead zirconate titanate and related materials
06/01/1999US5908800 Composition precursor and mixed cerium and zirconium oxide-based composition, and procedure for preparation and use thereof
06/01/1999US5908616 Produced by reacting (a) aluminum powder, (b) an aluminum halide or nitrate solution and (c) water at a temperature greater than about 85 degrees c.
05/1999
05/06/1999EP0913359A1 Ferroelectric element and process for producing the same
05/04/1999US5900223 Process for the synthesis of crystalline powders of perovskite compounds
04/1999
04/28/1999EP0765291B1 Process for treating zircon
04/27/1999US5898014 Catalyst composition containing oxygen storage components
04/14/1999EP0908425A1 Zirconia sintered body, process for production thereof, and application thereof
04/07/1999EP0906244A1 Cerium oxide and zirconium oxide based composition, method of preparation and utilisation in catalysis
03/1999
03/31/1999EP0796226B1 Treatment of a chemical
03/16/1999US5883037 Thermally stable/highly reducible catalyst compositions comprising alumina and the oxides of cerium and zirconium
03/03/1999CN1209789A Nanostructured oxides and hydroxides and method of synthesis therefor
03/02/1999US5876503 Multiple vaporizer reagent supply system for chemical vapor deposition utilizing dissimilar precursor compositions
02/1999
02/25/1999WO1999008963A1 Process for producing fine metal oxide particles
02/24/1999EP0897895A1 Process for the preparation of a ceramic powder for an electrolyte of a high temperature fuel cell and high temperature fuel cell
02/23/1999US5874684 Nanocrystalline materials
02/23/1999US5874374 Gelation of polymer solution with metal salt, shaping gel, heating to form metal oxide while combusting away organic material
02/03/1999EP0894779A1 Process for preparing ceramic powder
02/03/1999EP0655948B1 Preparation of solid state materials
02/02/1999US5864923 Method of forming particles using a supercritical fluid
02/02/1999CA2153048C Process for producing nanoscale ceramic powders
01/1999
01/28/1999WO1999003627A1 A composition comprising a metal salt and metal powder therefrom by the calcining thereof
01/28/1999CA2296082A1 A composition comprising a metal salt and metal powder therefrom by the calcining thereof
01/26/1999CA2129505C Novel zirconium salts and their synthesis
01/20/1999CN1205678A Organic sol comprising at least one oxygenated rare-earth compound, synthesis method therefor, and use of said sol for catalysis
01/14/1999WO1999001379A1 Process for the preparation of lead zirconate titanate compounds
01/13/1999EP0728037B1 Method of forming particles using a supercritical fluid, aerogel particles formed thereby, and antiperspirants containing aerogel particles
01/13/1999EP0666238B1 Metal oxide powder and process for producing the same
01/12/1999US5858451 Process for production of solution-derived (Pb,La)(Nb,Sn,Zr,Ti)O3 thin films and powders
12/1998
12/23/1998EP0854765A4 Process for the production of ultrafine particles
12/16/1998EP0884280A1 Zirconia powder, method for producing the same, and zirconiaceramics using the same
12/09/1998EP0882710A1 Method for the preparation of caprolactam and preparation of catalysts for this method
12/08/1998US5846505 Method for producing double metal oxide powder
12/02/1998CN1040969C Composite metal oxide powder and process for producing same
11/1998
11/24/1998US5840641 Dissolving a chloride-free zirconium copmpound in formic acid, removing the volatile components and calcining the residue
11/24/1998US5840268 Method for preparing an ultrafine powder
11/19/1998WO1998051617A1 Low temperature production of metal oxides
11/17/1998US5837642 Heat-resistant oxide
11/11/1998EP0876295A1 Nanostructured oxides and hydroxides and methods of synthesis therefor
11/10/1998US5834390 Copper-substituted, lithium zirconate-based ceramic usable as a tritium producing material
11/03/1998US5830242 Using fluoride complexing agent in aqueous solution
10/1998
10/27/1998US5827572 Heat treating sintered zirconia compacts or composites in nitrogen atmosphere to form protective surface nitride layer, low temperature stability, high strength, toughness, mechanical properties
10/21/1998CN1040314C Metal oxide powder and process for producing same
10/15/1998WO1998045212A1 CERIUM OXIDES, ZIRCONIUM OXIDES, Ce/Zr MIXED OXIDES AND Ce/Zr SOLID SOLUTIONS HAVING IMPROVED THERMAL STABILITY AND OXYGEN STORAGE CAPACITY
10/15/1998CA2285228A1 Cerium oxides, zirconium oxides, ce/zr mixed oxides and ce/zr solid solutions having improved thermal stability and oxygen storage capacity
10/14/1998EP0711261A4 Zirconia particles
10/07/1998EP0868942A1 Method of forming particles using a supercritical fluid and aerogel particles formed thereby
10/07/1998EP0868402A1 Method of producing inorganic aerogels under subcritical conditions
10/07/1998CN1195037A Monoclinic zirconium dioxide having large surface area
09/1998
09/30/1998EP0866885A1 Nanostructured feeds for thermal spray
09/30/1998CN1194625A Composite oxide having oxygen absorption and release capabilities and process for preparing the same
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