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 37 - Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
Patents for B01J 37 - Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts (39,240)
08/1991
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
08/06/1991US5037785 Catalyst regeneration process using laser radiation
08/06/1991US5037538 Segregation of reducing catalyst; no dilution or cracking catalyst; floating hollow sphere support
07/1991
07/31/1991EP0439338A1 A catalyst for halogen exchange in halohydrocarbons and for acid/base reactions
07/31/1991EP0439010A2 Poisoning-preventive layer-possessing support, poisoning-resistant catalyst, exhaust gas converter device, and poisoning-preventive gasoline composition
07/30/1991US5036037 Process of making catalysts and catalysts made by the process
07/30/1991US5036032 Selective catalysts and their preparation for catalytic hydrocarbon synthesis
07/30/1991US5035875 In a container for radioactive material for combining hydrogen and oxygen to form water; prevents explosion
07/30/1991US5035793 Metals, oxides, sulfides of group six and eight
07/26/1991CA2034848A1 Catalyst for halogen exchange in halohydrocarbons and for acid/base reactions
07/25/1991WO1991010510A1 Process and apparatus for preparing heterogeneous catalysts
07/25/1991WO1991010509A1 Use of colloidal silica sol as an adjuvant for catalysts
07/24/1991EP0438288A2 Method of synthesising a selective olefin hydrogenation catalyst
07/24/1991EP0438134A1 A method for preparing a catalyst for metathetic reactions of hydrocarbons
07/24/1991EP0438131A1 A method for preparing a catalyst for aromatization of light hydrocarbons
07/24/1991CN1013245B Catalyst for purifying exhaust gas and method for prodn. thereof
07/23/1991US5034564 Production of alkyl aromatic compounds
07/23/1991CA1286650C Process for preparing a silver-on-carrier catalyst
07/18/1991DE4000692A1 Verwendung von kolloidalem kieselsaeuresol als hilfsstoff fuer katalysatoren Use of colloidal silica sol as excipient for catalysts
07/17/1991EP0437087A1 Process for preparing an oxidation catalyst with modified platinum structure
07/17/1991EP0437052A1 Process for preparing a reduction catalyst with modified rhodium structure
07/17/1991CN1053080A Dual component cracking catalyst and process with vanadium passivation and improved sulfur tolerance
07/17/1991CA2034221A1 Method of synthesising a selective olefin hydrogenation catalyst
07/16/1991US5032565 Process for reducing a refining catalyst before use
07/16/1991US5032378 Catalyst supports
07/16/1991CA1286324C Preparation of medicinal white oils and medicinal paraffins
07/11/1991WO1991009675A1 Method for depositing metal particles on an organic polymer support
07/10/1991CN1052844A Syngas conversion catalyst, its production and use thereof
07/10/1991CN1013078B Load type cu-zn base methyl alcohol-disolving catalyzer
07/09/1991US5030609 Process for producing a hydrogenation catalyst of copper chromite
07/09/1991US5030608 Process for the preparation of composite materials which contain small particles of metal or metal oxide in an oxide matrix and the composite materials prepared by the process
07/09/1991US5030607 Catalysts for synthesizing various short chain hydrocarbons
07/09/1991US5030431 Reacting aluminum salts and phosphate salts, neutrilizing with base, exchanging with acetone, alcohol or ethyl acetate and drying
07/09/1991CA2032967A1 Oxidation catalyst with modified platinum structure
07/09/1991CA2032958A1 Reduction catalyst with modified rhodium structure
07/09/1991CA1285792C Process for preparing finely divided metal powders
07/03/1991EP0435539A1 Cracking catalyst having enhanced vanadium passivation and sulfur tolerance
07/03/1991EP0434962A1 Hinged lid package, especially for cigarettes
07/03/1991CN1052639A Hinge lid pack, especially for cigarettes
06/1991
06/26/1991EP0434284A2 Selective catalysts and their preparation for catalytic hydrocarbon synthesis
06/26/1991EP0434219A1 Hollow fiber bundle element
06/26/1991EP0434062A1 Hydrogenation with Cu-A1-X catalysts
06/26/1991EP0434061A1 Hydrogenation with Cu-A1 catalysts
06/26/1991EP0434052A2 Modified crystalline aluminosilicate and method of preparing the same
06/26/1991CN1052501A Hydrofined catalyst and preparing process thereof
06/25/1991US5026533 Boiling reaction solution; reduced distillation time
06/25/1991CA1285260C Silver catalyst and process for preparing same
06/22/1991CA2032871A1 Hydrogenation with cu-al catalysts
06/22/1991CA2032777A1 Hydrogenation with cu-a1-x catalysts
06/19/1991EP0433223A1 Catalytic structure and reactor for heterogeneous reactions
06/19/1991EP0433222A1 Reactor including a catalyst body for performing a heterogeneous reaction
06/19/1991EP0432534A1 Catalyst for cleaning exhaust gases from Diesel engines
06/19/1991EP0432224A1 Treatment of arsine removal catalysts.
06/19/1991CN1052262A Process for purification of exhaust gas of diesel engines
06/18/1991US5024824 Layered automotive catalytic composite
06/18/1991US5024751 Catalytic composition comprising a metal sulfide suspended in a liquid containing asphaltenes and hydrovisbreaking process of a hydrocarbon charge
06/18/1991CA1284985C Process for the preparation of a silver-containing catalyst
06/18/1991CA1284983C Non-noble metal combustion catalyst and process for its preparation
06/11/1991US5023277 Syngas conversion catalyst its production and use thereof
06/05/1991EP0430744A1 Supported catalysts and process for producing the same
06/05/1991EP0430437A2 Three-way catalyst for automotive emission control
06/05/1991EP0430435A2 Three-way catalyst for automotive emission control
06/05/1991EP0429994A1 A catalytic composite and a cooker having the same
06/04/1991US5021392 Prepared by calcining aggregates formed from seed hydrosol by ph controlled dissolving and deposition
06/04/1991US5021389 Three-way catalyst for automotive emission control and method of making the catalyst
06/04/1991US5021388 Chemical, electrochemical, or physical deposition over intermediate heat-treated silicate glass frit layer
06/04/1991US5021387 Catalyst for the preparation of hydrocarbons from carbon monoxide and hydrogen
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
05/1991
05/30/1991WO1991007227A1 Catalyst regeneration process
05/29/1991EP0429132A1 Hydrocarbon conversion process using a catalyst produced by electric discharge
05/29/1991EP0428990A1 Method and apparatus for liquid coating for honeycomb structure
05/29/1991EP0428753A1 Exhaust gas purifying catalyst excellent in thermal resistance and method of production thereof
05/29/1991EP0428752A1 Exhaust gas purifying catalyst excellent in thermal resistance and method of production thereof
05/28/1991US5019652 Catalysts and method
05/28/1991US5019547 Process for preparing precursors of catalysts containing copper, aluminum and zinc, usable for the synthesis and the decomposition of methanol and catalysts obtained from the precursors
05/28/1991US5019546 Catalyst for purifying exhaust gas and method of manufacturing the same
05/28/1991US5019543 High silica crystalline zeolites and process for their preparation
05/28/1991CA2030682A1 Supported catalysts and manufacturing process thereof
05/24/1991CA2030402A1 Hydroconversion process
05/23/1991CA2026752A1 Three-way catalyst for automotive emission control
05/23/1991CA2026608A1 Three-way catalyst for automotive emission control
05/22/1991EP0428223A1 Process for the preparation of extrudates
05/22/1991EP0427970A2 Process for reducing NOx in an exhaust gas using a precious metal/ZSM-5 catalyst
05/21/1991US5017535 Process for the preparation of a presulfided and sulfided catalyst
05/16/1991WO1991006366A1 Supported catalyst, method for the preparation thereof, and use thereof for the dehydrogenation of hydrocarbons
05/16/1991WO1991004943A3 Zeolite aggregates and catalysts
05/15/1991EP0427494A2 Staged three-way conversion catalyst and method for using the same
05/14/1991US5015766 Preparation process of acrylamide
05/14/1991US5015616 Strontium oxide compounds in mixture
05/14/1991US5015362 Catalytic conversion of NOx over carbonaceous particles
05/14/1991CA1284022C Graded refractory cermet article
05/09/1991CA2027329A1 Staged three-way conversion catalyst and method of using the same
05/08/1991EP0425488A1 Pollution control catalyst for minimizing h2s emissions.
05/08/1991CN1051130A Regeneration or activation of noble metal catalyst using fluorohalocarbons or fluorohalohydrocarbons
05/07/1991US5013706 Chromium oxide, titanium oxide, vanadium oxide, selectivity to mono-olefins
05/07/1991US5013232 Extrusion die construction
05/07/1991CA1283899C Process for the preparation of a silver-containing catalyst
05/02/1991EP0425020A1 Alkylene oxide catalysts containing high silver content
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