Patents for C01F 7 - Compounds of aluminium (12,677)
10/2002
10/16/2002CN1374251A Prepn of superpurity nano level alumina powder
10/16/2002CN1092604C Removal of silica from bauxite
10/10/2002WO2002079090A1 Process for producing synthetic spinel
10/09/2002CN1092146C Pseudoboehmite powder for catalyst carrier and process for preparing same
10/09/2002CN1092145C Process for preparation of superfine aluminium hydroxide
10/08/2002US6461584 Small crysllite size and little agglomeration
10/03/2002WO2001094263A3 Method for preparing colloidal particles derived from hydrolysis of a metal cation salt
10/02/2002DE10065583A1 Pigmente für die Papierherstellung Pigments for papermaking
10/02/2002CN1371865A Method for producing white alum
09/2002
09/26/2002WO2002074689A2 Formation of crystals containing hydrated aluminum oxide from caustic mother liquors
09/25/2002EP1242173A1 Aqueous colloidal dispersion based on at least a metal compound and a complexing agent, preparation method and use
09/25/2002CN1371341A Attrition resistant, shaped, crystalline anionic clay-containing bodies
09/25/2002CN1370741A Red clay separation process for alumina sintering production
09/25/2002CN1091428C Process for preparing artificial diasporite and gamma-alumina
09/25/2002CN1091427C Preparation of alumina
09/24/2002US6455455 Produced by flame hydrolysis; silicon halide and aluminum halide are vaporized, homogeneously mixed with air, oxygen and hydrogen, combustion; for chemical mechanical polishing
09/19/2002WO2002072526A1 Quasi-crystalline hydrated magnesium-aluminium hydroxy carboxylates, their preparation and their use
09/19/2002WO2002072474A1 In situ formed anionic clay-containing bodies
09/19/2002WO2002008124A3 Nanoscale corundum powders, sintered compacts produced from these powders and method for producing the same
09/19/2002DE10113294A1 Bildung von Aluminiumoxidhydrat-haltigen Kristallen aus kaustischen Mutterlaugen Formation of alumina hydrate-containing crystals of caustic mother liquors
09/19/2002CA2437605A1 Quasi-crystalline hydrated magnesium-aluminium hydroxy carboxylates, their preparation and their use
09/19/2002CA2437604A1 In situ formed anionic clay-containing bodies
09/18/2002EP1241137A1 Novel alumina hydrate particles alumina hydrate particle dispersion sol and liquid coating for forming ink-receiving layer and substrate having ink-receiving layer
09/18/2002EP1239955A1 Hydrothermally stable high pore volume aluminum oxide/swellable clay composites and methods of their preparation and use
09/18/2002EP1239954A1 Alumina trihydrate derived high pore volume, high surface area aluminum oxide composites and methods of their preparation and use
09/18/2002CN1370133A Polytype Mg-Al hydrotalcite
09/18/2002CN1370130A Process for producing al-contg. non-mg-anionic clay
09/18/2002CN1370129A Process for producing mg-contg. non-al-anionic clay
09/18/2002CN1369434A Process for preparing alumina powder with high sinter activity
09/18/2002CN1369328A Ore dressing process for desiliconizing bauxite
09/17/2002US6451200 Hydrothermally stable high pore volume aluminum oxide/swellable clay composites and methods of their preparation and use
09/12/2002WO2002070411A1 Scale removal or prevention
09/12/2002WO2002053655A3 Pigments used to produce paper
09/12/2002US20020128327 Polishing composition and magnetic recording disk substrate polished with the polishing composition
09/12/2002CA2436417A1 Scale removal or prevention
09/11/2002CN1368939A Process for preparation of quasi-crystalline boehmites from inexpensive precursors
09/11/2002CN1368938A Process for preparation of quasi-crystalline boehmites
09/11/2002CN1368937A Quasi-crystalline boehmites containing additives
09/10/2002US6447738 Leaching with sulfuric acid, reducing any ferric values to ferrous, crystallizing formed double salts, washing, hydrolyzing, washing, drying, calcining
09/10/2002US6447597 Hydrated calcium aluminate based expansive admixture
09/06/2002WO2002068329A1 Process for the preparation of anionic clay
09/06/2002CA2437556A1 Process for the preparation of anionic clay
09/05/2002US20020122895 Blue phosphor that may be used without an optical filter to provide acceptable colour coordinates for the blue sub-pixel element of a full-colour electroluminescent display
09/05/2002US20020121156 Silicon-aluminum mixed oxide powder containing 0.1 to 99.9 wt. % Al2O3 and Si-O- Al-bonds; used for the chemical- mechanical polishing of semiconductor substrates.
09/05/2002DE10109892A1 Production of a monomodal nanocrystalline oxide powder comprises vaporizing a starting material and subjecting the vapor to pulsating combustion in a hot gas stream under reduced pressure
09/04/2002EP1044164A4 Improvements relating to the bayer process
09/04/2002CN1367135A Chromatographic aluminium oxide for industrialization
09/04/2002CN1090152C Synthetic chalcoalumite compounds and process for producing thereof
09/04/2002CN1090151C Method for continuous refining of quartz powder
09/03/2002US6444232 Aqueous suspension
09/03/2002US6444188 One step; spray drying; forming spheres
09/03/2002CA2068545C Silica-stabilized alumina and process for its preparation
08/2002
08/29/2002US20020119093 Method of producing fine particles of metal oxide
08/28/2002EP1234800A1 Aqueous dispersion, process for its production and use thereof
08/28/2002EP1233929A1 Composite material of improved fire resistance
08/28/2002CN1366547A Polishing composition and magnetic recording disk substrate polished with polishing composition
08/28/2002CN1089728C Process for treatment of sodium hydroxide waste liquor containing aluminium
08/27/2002US6440888 With carbonate and/or hydroxide anions as the charge balancing interlayer species; hydrothermally reacting aluminum source (alumina trihydrate, gibbsite, bayerite, nordstrandite) and divalent metal source; no necessity to wash or filter
08/27/2002US6440887 Continuous process for producing anionic clay
08/27/2002US6440552 Boehmite and base coat layer for magnetic recording medium
08/27/2002US6440187 Preparation of a polishing composition comprising the alumina powder, water and a polishing accelerator.
08/22/2002WO2002064504A1 Doped anionic clays
08/22/2002WO2002064499A2 Process for the preparation of anionic clay and boehmite-containing compositions, compositions containing anionic clay and boehmite and catalysts derived therefrom
08/22/2002CA2437607A1 Process for the preparation of anionic clay and boehmite-containing compositions, compositions containing anionic clay and boehmite and catalysts derived therefrom
08/21/2002EP1232226A1 Synthesis of nanoparticles
08/21/2002CN1089276C Carried hydrotalcite cartalyst and the preparation of aliphatic alcohol ether acetate
08/20/2002US6436381 Hplc peak 5 area content of about 33% or more
08/20/2002US6436362 Process for preparing aluminum fluoride
08/15/2002US20020111263 Process for the preparation of anionic clay and boehmite-containing compositions
08/15/2002US20020110520 Preparing aqueous precursor mixture comprising aluminum trihydrate or a thermally treated form thereof and a magnesium source, which is being milled before use; aging the precursor mixture at low temperature to obtain crystlline clay
08/15/2002US20020110519 Synthesis of nanometer-sized particles by reverse micelle mediated techniques
08/15/2002US20020110517 Single step process for the synthesis of nanoparticles of ceramic oxide powders
08/14/2002EP1230017A1 Apparatus and methods for the production of powders
08/14/2002EP1157077B1 Abrasive grains consisting of polycrystalline alumina
08/14/2002CN1363511A Process for preparing fluorine compound and SiO2 from sodium fluosilicate
08/14/2002CN1363419A Process for preparing activated nano composite powder by ultrahigh-frequency microwave
08/13/2002US6432531 Composed of alumina monohydrate (alooh) and acetic acid produced by reacting a slurry of water and basic aluminum acetate and stirring; zeta potential of greater than about 25
08/13/2002US6432392 Treating solution with an effective amount of an acidic water soluble source of phosphorus and ageing the resultant solution to gain a salt with good antiperspirant efficacy; phosphoric acid
08/08/2002WO2002060555A1 Method of clarifying bayer process liquors using salicylic acid containing polymers
08/08/2002WO2001083373A3 Boehmite powder
08/08/2002US20020104599 Sol-gel process; forming a solution containing dissolved metal salts, and adding a proton scavenger (such as an epoxide) to the solution for inducing and controlling gelation.
08/07/2002EP1228161A1 Cmp products
08/07/2002EP1228000A1 Production of fumed silica
08/07/2002EP1227998A1 PROCESS FOR PRODUCING Al-CONTAINING NON-Mg-ANIONIC CLAY
08/06/2002US6429172 Mixing aluminate from alumite etching treatment and aluminum from an anodization step or maturing aluminum hydroxide sludge with alkaline solution; reutilizing wastes; carrier for hydrogenation refining catalyst
08/06/2002US6428778 Mixing group 3 compounds with nonaqueous oils and optionally a glycine buffer, then ball milling; stability
08/01/2002US20020102206 Laminate for printed circuit boards
07/2002
07/31/2002CN1088397C Preparation of alumina adapted for being used as catalyst carrier for hydrogenating heavy oil
07/30/2002CA2270577C Compound with base of an alkaline-earth, sulphur and aluminium, gallium or indium, method of preparing same and use as luminophore
07/25/2002WO2002057184A1 Mesostructured catalyst incorporating particles of nanometric dimensions
07/25/2002WO2002057182A2 Ceramic materials in powder form and method for their preparation
07/25/2002US20020096476 Separation method of goethite-containing red mud
07/25/2002DE10202470A1 Conversion of ammonium aluminum alum into aluminum sulfate and ammonium sulfate by two-stage dehydration and thermal decomposition
07/25/2002DE10102554A1 Separating aluminum-containing composites, e.g. for recycling packaging materials, involves treatment with alkali solution to dissolve aluminum and precipitate other materials
07/25/2002CA2434769A1 Mesostructured catalyst incorporating particles of nanometric dimensions
07/24/2002EP1224150A2 Process for the production of aluminium hydroxide of improved whiteness
07/23/2002US6423133 Aqueous suspension based on alkaline aluminium polysulphate, preparation method and use in the field of building materials
07/19/2002CA2331470A1 Ceramic materials in powder form
07/17/2002EP1222150A1 Phosphorus doped activated alumina
07/16/2002US6419736 Sulfide and oxysulphide pigments
1 ... 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 ... 127