Patents
Sitemap › B01 - Physical or chemical processes or apparatus in general › B01J - Chemical or physical processes, e.g. catalysis, colloid chemistry; Their relevant apparatus › B01J 21 - Catalysts comprising the elements, oxides or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium or hafnium
Patents for B01J 21 - Catalysts comprising the elements, oxides or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium or hafnium (28,523)
08/1991
08/27/1991US5043508 Process for preparing long chain alkyl aromatic compounds
08/27/1991US5043475 Oxidation of N-phosphonomethyliminodiacetic acid with peroxide and metal catalyst of iron, zinc, aluminum, vanadium and copper
08/27/1991US5043308 Crystalline rare earth aluminum borates
08/24/1991CA2034622A1 Trimerization catalysts, a process for their preparation and their use for the preparation of polyisocyanates containing isocyanurate groups
08/22/1991WO1991012226A1 Process for producing aldehyde by oxidizing primary alcohol
08/22/1991DE4005295A1 THF recovery from butane-diol butyrolactone and succinate ester mixts. - by heating with layer silicate at 100-250 deg. C, distilling off THF water and sepg. THF from distillate
08/21/1991CN1013576B Downflow isomerization of exoxides
08/20/1991US5041664 Organic chlorides; tertiary amines with mettal oxide lewis acid catalyst
08/20/1991US5041662 Silicon dioxide catalyst, elevated temperature
08/20/1991US5041621 Process for the preparation of dihydroxy esters
08/14/1991WO1991012201A1 Method for desulphurising a gaseous mixture containing h2s and so2 and recovering said compounds in the form of sulphur
08/14/1991EP0441685A1 Catalytic system and its use in the oxydehydrogenation of saturated carboxylic acids
08/14/1991EP0441565A2 Flat knitting machine having function for adjusting knock-over timing
08/14/1991EP0441430A1 Catalytic dehydrogenation of C2-C5 paraffins
08/13/1991CA1287612C Layered metal chalcogenides containing interlayer chalcogenides and their synthesis
08/13/1991CA1287611C Layered metal oxides containing interlayer oxides and their synthesis
08/08/1991DE4103431A1 Converting methane into higher hydrocarbon(s) - using catalyst based on mixed oxide of Gp=IV, rare earth, alkaline, alkali earth and Gp=IIB metal(s)
08/08/1991CA2035798A1 Catalytic composition for the dehydrogenation of c2-c5 paraffins
08/06/1991US5037956 Esterification with reaction product of aniline and hydroquinone; polymer antidegradant
08/06/1991US5037911 Addition polymerization using a catalyst which is activated by heating
08/06/1991US5037794 Alpha alumina; heat resistance and fluidizability
08/06/1991US5037792 Impregnation; drying; calcination; spinel compound; vanadium oxide with molybdenum oxide or tungsten oxide
08/06/1991US5037791 Having increased pore volume and particle crush strength
08/06/1991US5037790 Solid catalyst functionalized with sulfonic groups, process for perparing it and its use
08/06/1991US5037787 For catalytic hydrogenation of unsaturated edible oils
08/06/1991CA1287341C Reforming/dehydrocyclization catalysts and processes
07/1991
07/25/1991WO1991010509A1 Use of colloidal silica sol as an adjuvant for catalysts
07/24/1991EP0438329A1 Process for the C-alkylation of hydroquinone and its monoethers
07/24/1991EP0437788A1 Process for preparing powdered aluminium alloys
07/24/1991EP0281627B1 Process for reducing aldehydes or ketones
07/23/1991US5034564 Production of alkyl aromatic compounds
07/23/1991US5034369 Novel catalysts for the treatment of gaseous effluents containing oxidizable sulfur pollutants
07/20/1991CA2034561A1 Process for the c-alkylation of hydroquinone and its monoesters
07/18/1991DE4000692A1 Verwendung von kolloidalem kieselsaeuresol als hilfsstoff fuer katalysatoren Use of colloidal silica sol as excipient for catalysts
07/17/1991EP0437132A1 Pillared clays having large interlayer spacing and process for their preparation
07/17/1991EP0436989A1 Process for rearranging allylic geminal dihalogen compounds
07/17/1991CN1053080A Dual component cracking catalyst and process with vanadium passivation and improved sulfur tolerance
07/17/1991CN1013200B Alumina treated by silicon and/or fluorine
07/16/1991US5032379 Alumina suitable for catalytic applications
07/16/1991US5032378 Catalyst supports
07/16/1991CA1286323C Process for producing isobutylene
07/16/1991CA1286311C Preparation of 6-aminocaproates
07/16/1991CA1286279C Boron-promoted reducible metal oxides and methods for their use
07/16/1991CA1286109C Catalyst support
07/10/1991EP0436409A1 Method for ozonizing water by means of heterogeneous catalyst activation
07/10/1991EP0435989A1 Process for the preparation of aromatic nitriles.
07/10/1991CN1013078B Load type cu-zn base methyl alcohol-disolving catalyzer
07/09/1991US5030791 Process for co-oligomerizing 1,3-di-isopropenyl benzene and alpha-olefins to prepare synthetic lubricant base stocks having improved properties
07/09/1991US5030607 Catalysts for synthesizing various short chain hydrocarbons
07/09/1991US5030398 Method of producing a cordierite honeycomb structural body
07/03/1991EP0435539A1 Cracking catalyst having enhanced vanadium passivation and sulfur tolerance
07/03/1991EP0435445A1 Method for preparing alpha beta-unsaturated nitriles
07/03/1991EP0435310A1 Catalytic shaped body for removing inorganic impurities
07/03/1991CN1052662A Amines catalysis using metallic phosphate condensation catalysts having cyclic structure
07/02/1991US5028665 Group 8 metal on porous support, selective hydrogenation of ethylenic unsaturation
07/02/1991US5028352 Low density/low surface area silica-alumina composition
06/1991
06/26/1991EP0434462A1 Aromatization process utilizing a pillared layered silicate plus a base metal or noble metal
06/26/1991EP0433959A1 Process for preparing monoallylamine
06/26/1991EP0433954A1 Alkylation process
06/26/1991EP0354912B1 Process for manufacturing a carbon catalyst
06/25/1991US5026533 Boiling reaction solution; reduced distillation time
06/22/1991CA2032688A1 Aromatization process utilizing a pillared layered silicate plus a base metal or noble metal
06/19/1991CN1052263A Reclaiming and reusing of waste hydrocarbon steam inversion catalyst
06/18/1991US5025112 Purification of cumene recycle streams
06/18/1991CA1284985C Process for the preparation of a silver-containing catalyst
06/18/1991CA1284982C Hydroprocessing catalyst and support having bidisperse pore structure
06/12/1991EP0431265A2 Process for the preparation of p-aralkylbiphenyls
06/12/1991CN1052110A Promoted amines catalysis
06/12/1991CN1052109A Amines catalysis
06/11/1991US5023390 Acylation of 2,4-dimethylisobutyrophenone; hydrogenation, dehydrogenation, cyclization
06/11/1991US5023221 Middle distillate hydrocracking catalyst and process
06/11/1991CA2005040A1 Isomerization of alkylaromatics
06/08/1991CA2031356A1 Water ozonation process using heterogeneous catalysis
06/04/1991US5021392 Prepared by calcining aggregates formed from seed hydrosol by ph controlled dissolving and deposition
06/04/1991US5021385 Containing molybdenum oxide and nickel or cobalt oxide; high porosity and surface area
06/04/1991US5021378 Molded articles based on pyrogenically prepared silicon dioxide, process for their production and their use
06/04/1991CA1284662C Phenol alkylation process
06/04/1991CA1284661C Reduction of organic sulfur compounds
05/1991
05/29/1991EP0429132A1 Hydrocarbon conversion process using a catalyst produced by electric discharge
05/29/1991EP0428803A1 Novel ligand catalyst systems formed by reaction of carbonyl compounds with organosilicon compounds
05/29/1991EP0428791A1 Process for using an improved catalyst for dehydrohalogenation
05/24/1991CA2030402A1 Hydroconversion process
05/22/1991EP0428223A1 Process for the preparation of extrudates
05/21/1991US5017352 Catalysts
05/16/1991DE4035544A1 Solid-bed fischer-tropsch catalyst for wax prodn. - obtd. by adding 1-80 wt. per cent active carbon, w.r.t. iron content of catalyst at any stage before extrusion
05/15/1991EP0427603A1 Process for the preparation of fluorinated aromatic compounds and catalysts based on Lewis-acids
05/14/1991US5015615 Molded articles based on pyrogenically prepared aluminum oxide and process for their production
05/14/1991US5015614 Novel alumina support materials
05/14/1991US5015360 Catalytic hydrocracking with chromium, tungsten, iron cobalt and nickel on silicates or silica
05/08/1991EP0425833A1 Material, structure, filter and catalytic converter
05/07/1991US5013704 Novel platinum-rhenium-alumina catalysts for reforming
05/07/1991CA2029328A1 Process for preparing fluorinated aromatic derivatives with a lewis acid catalyst
05/02/1991WO1991002711A3 7,7-dimethylnorbornane derivatives
05/02/1991EP0424767A2 Decanol mixtures and mixtures of didecylesters obtained from them and their use as plastifiers
05/02/1991EP0424764A2 Process for the preparation of Bis- and Tris-(3-dimethylaminopropyl)amine
05/02/1991CA2022454A1 Material, structure, filter and catalytic converter
05/01/1991WO1991006526A1 Process and catalyst for production of diaryl carbonates
05/01/1991CN1012496B Method for production of oxydicarboxylic acid salts
05/01/1991CA2067375A1 Process and catalyst for production of diaryl carbonates
04/1991
04/30/1991US5012012 Alkoxylation catalyst
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