Patents
Patents for B01J 21 - Catalysts comprising the elements, oxides or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium or hafnium (28,523)
05/1990
05/25/1990CA2003464A1 Carrier for gas-treating catalyst, method for production thereof, and gas-treating catalyst incorporating said carrier therein
05/23/1990EP0369122A1 Aluminium oxide, process for its preparation and use thereof
05/23/1990CA2003693A1 Silica/alumina cogel catalysts
05/22/1990CA2003449A1 Method of producing ethylenediamines
05/17/1990DE3837358A1 Process for the production of finely divided or fibrous precursors of activated carbon from pitch-like bitumenous substances and substances containing nitrogen or nitrogen and heavy metal, from which catalytically active activated carbons can be produced
05/16/1990EP0368656A2 Method for preparing epichlorohydrins
05/09/1990EP0367574A2 Ozone decomposition catalyst and method
05/09/1990EP0367408A2 Method for production of phenol/acetone from cumene hydroperoxide
05/09/1990CA2002341A1 Method for preparing epichlorohydrins
05/08/1990US4924000 Preparation of acylated imidazoles
05/08/1990US4923838 Process for preparing an iron-coal slurry catalyst for hydrocracking heavy oils
05/08/1990US4923837 Hydrogenation catalyst
05/08/1990CA1268759A1 Copper-mediated oximation reaction
05/02/1990EP0366211A2 Process for producing alpha olefins
05/02/1990EP0365971A2 Method for the production of (substituted) benzyl-benzenes
05/02/1990EP0365801A1 Process for producing alumina with high specific surface area
05/01/1990US4921826 Process for producing an active carbon catalyst
05/01/1990US4921823 Porous anodic aluminium oxide membrane catalyst support
05/01/1990CA1268454A1 Preparation of high surface area agglomerates for catalyst support and preparation of monolithic support structures containing them
04/1990
04/25/1990EP0365206A2 Alkylation of halodisilanes
04/25/1990CN1041541A Catalysts
04/24/1990US4920089 Hydrogenation catalyst
04/24/1990US4919908 Crystalline aluminosilicate and a method for its preparation
04/24/1990CA1268165A1 Catalyst for decreasing the content of nitrogen oxides in flue gases
04/24/1990CA1268018A1 Catalyst for decreasing the content of nitrogen oxides in flue gases
04/17/1990US4918221 Process for preparing 2,5-dichlorophenylthioglycollic acid
04/17/1990US4918042 Exhaust gas purifying catalyst
04/17/1990US4917857 Process for producing metallic or ceramic hollow-sphere bodies
04/17/1990CA1267913A1 Process for the preparation of ethylene glycol
04/17/1990CA1267882A1 Catalyst for decreasing the content of nitrogen oxides in flue gases
04/17/1990CA1267880A1 Catalyst for decreasing the content of nitrogen oxides in flue gases
04/17/1990CA1267879A1 Preparation of monolithic catalyst support structures having an integrated high surface area phase
04/17/1990CA1267876A1 Class of pillared interlayered clay molecular sieve products with regularly interstratified mineral structure
04/17/1990CA1267771A1 Elimination process of cos and cs.sub.2 compounds from an industrial gas
04/11/1990EP0362651A2 Process for the production of 2,6-dimethylnaphthalene
04/11/1990EP0271575B1 Layered metal chalcogenides containing interlayer chalcogenides and their synthesis
04/10/1990US4916236 Contacting vapor phase mixture of n-(b-hydroxy) alkylaniline, water and acatalyst, cooling and condensing
04/10/1990US4916107 Calcined mixture of titanium oxide, tungsten oxide and at least one oxide of vanadium, iron, niobium, molybdenum
04/05/1990WO1990003458A1 Improvements in and relating to fibrous activated carbons
04/05/1990WO1990003331A1 High surface area alpha-alumina and supercritical fluid synthesis thereof
04/04/1990EP0360874A1 Process for preparing para-cumylphenol
04/04/1990CN1040968A Process of photocatalysis treatment of waste water
04/03/1990US4914251 Sodium oxide on potassium carbonate carrier
04/03/1990US4914072 Phosphorus/titania/zirconia catalyst for preparation of linear polyethylenepolyamines
04/03/1990US4914071 Method for preparing a catalyst
03/1990
03/29/1990DE3832635A1 Process for producing carbon-containing catalysts having adsorptive properties
03/28/1990EP0360554A1 Catalysts
03/28/1990EP0360548A1 A process for producing a denitration catalyst
03/28/1990EP0360406A1 Treating a temperature-sensitive hydrocarbonaceous stream containing a non-distillable component
03/27/1990US4912776 Process for removal of NOx from fluid streams
03/27/1990US4912234 Forimg phthalic anhydride
03/27/1990US4912081 Boron-promoted reducible metal oxides
03/27/1990US4912077 Catalytically active materials and method for their preparation
03/27/1990CA1267130A1 Hydrocarbon conversion catalyst containing a bifurcated alkali component
03/27/1990CA1267128A1 Catalyst for reducing the nitrogen oxide content of flue gases
03/21/1990EP0295269B1 Layered metal oxides containing interlayer oxides and their synthesis
03/21/1990CN1040518A Catalyst for treating gaseous fluid material and process for treating them
03/20/1990US4910177 Catalyst for the reduction of aldehydes and ketones
03/20/1990US4910005 Process for the reduction of nitrogen oxides from exhaust gases
03/20/1990CA1266844A1 Process for hydrotreating residual petroleum oil
03/14/1990EP0358271A2 Novel crystalline (metallo)silicates and process for preparing such (metallo)silicates
03/13/1990US4908122 Contacting hydrocarbon in the presence of an oxidizing agent with a catalytic composite to oxidize mercaptans to disulfides
03/13/1990CA1266683A1 Alkylation of aromatic amines in the presence of acidic, crystalline molecular sieves
03/07/1990EP0357506A1 Catalysts for treating gaseous affluents, and process for treating the same
03/07/1990EP0356918A1 Amine oxide process
03/06/1990US4906793 Silica-titania hydrocarbon conversion catalyst
03/06/1990US4906791 Process for preparing p-cumylphenol
03/06/1990US4906600 Paraffinic material treatment for catalysts and olefin dimerization processes therewith
02/1990
02/28/1990EP0355983A1 A process for the low residence time dehydration of p-acetoxyphenyl methylcarbinol
02/28/1990EP0355231A1 Heat-resistant catalyst carrier moldings and catalysts for combustion
02/27/1990US4904627 Alkaline earth metal spinel/kaolin clays and processes for making
02/21/1990EP0354912A1 Process for manufacturing a carbon catalyst.
02/21/1990CN1039779A Twice-aged porous inorganic oxides, catalysts, and polymerization processes
02/20/1990US4902666 Process for the manufacture of spheroidal bodies by selective agglomeration
02/20/1990US4902663 Active amorphous mixed oxides
02/14/1990EP0354612A1 Process for the preparation of nickel/alumina catalysts
02/14/1990CN1039542A Catalytically active materials
02/14/1990CN1006783B Process for the production of tertiary olefins by decomposition of alkyl-tert alkyl-ethers
02/14/1990CN1006767B Preparation of a new catalyst containing rare earth element for synthesis of ammonia
02/13/1990US4900874 Method for producing fluorine-containing olefin
02/13/1990US4900705 Novel ligand catalyst systems formed by reaction of carbonyl compounds with organosilicon compounds
02/13/1990US4900703 Method for producing ceramics with thermal shock resistance
02/07/1990EP0354134A1 Process for the monomethylation of phenolic compounds
02/07/1990EP0353813A1 Alkylation of aromatic hydrocarbons in a fixed bed catalytic process
02/07/1990CN1039418A Process for preparation of oxirane compound
02/07/1990CN1039411A Process for low residence time dehydration of p-acetoxyphenyl methylcarbinol
02/07/1990CN1006685B Method of making dehydrogenation catalyst of c3-c5 waxy hydrocarbon
02/06/1990US4898987 Method for production of phenol/acetone from cumene hydroperoxide
01/1990
01/31/1990EP0353129A1 Alumina aglomerates preparation process
01/31/1990EP0352878A1 Catalysts comprising metal compounds supported on a clay or hydrous silicate and their use
01/31/1990EP0352856A1 Process of selective oligomerization of olefins and new catalyst for such a process
01/31/1990EP0352715A1 Twice-aged porous inorganic oxides, catalysts, and polymerization processes
01/31/1990EP0352674A2 Process for the preparation of ketones
01/31/1990CN1006631B Method of nitric acid production through nitrogen fixation with air at low temp. and low pressure
01/30/1990US4897480 Preparation of N,N'-dialkyl substituted cyclic urea derivatives
01/25/1990WO1990000523A1 Aluminum hydroxide production
01/24/1990CN1039003A Process for preparing titanium oxide and products
01/23/1990CA1264723A1 Manufacturing catalyst supports based on improved durability alumina
01/17/1990EP0351270A1 Process for the preparation of titanium oxide and articles based on titanium oxide
01/17/1990EP0351057A1 Catalytically active materials and manufacture thereof