Patents
Patents for B01J 37 - Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts (39,240)
05/1991
05/01/1991CN1050994A Improved aldehyde hydrogenation catalyst and process
04/1991
04/30/1991US5011810 Denitration of exhaust gases; improved peel strength
04/30/1991US5011809 Preparation of a silver catalyst
04/30/1991US5011529 Cured surfaces and a process of curing
04/24/1991EP0424069A1 Hydrogenation catalys and process of using said catalyst
04/24/1991EP0423692A1 Use of a catalyst for preparing aldehyde
04/23/1991US5010051 Staged three-way conversion catalyst and method of using the same
04/23/1991US5010049 Modified molybdenum sulfide hydrodesulfurization/hydrodenitrogenation catalysts
04/23/1991US5009771 Hydroconversion process using mixed catalyst system
04/17/1991EP0396740A4 Slurry catalysts for hydroprocessing heavy and refractory oils
04/16/1991US5008235 Catalysts of Cu-Al-third metal for hydrogenation
04/16/1991US5008234 Vaporizing metal to form metal-ethylene complex, solidification, heating to remove excess ethylene, impregnating support decompsoing the complex to leave metal deposits
04/16/1991US5008090 Catalytic process for minimizing the H2 S emissions from automotive exhaust
04/11/1991DE4028720A1 Ceramic honeycomb body useful as catalyst in IC. engines - comprises materials of high electric constant and is fitted with microwave radiator
04/10/1991EP0421678A1 Process for the preparation of catalysts
04/10/1991EP0421502A2 Process for the preparation of a catalyst or catalyst precursor suitable for the preparation of hydrocarbons from carbon monoxide and hydrogen, and said catalyst
04/09/1991US5006496 Process for the preparation of zeolitic catalysts
04/05/1991CA2026138A1 Process for the preparation of catalysts
04/04/1991WO1991004094A1 Gas-solid photocatalytic oxidation of environmental pollutants
04/03/1991EP0419906A1 Core element and core for electrically heatable catalytic converter
04/02/1991US5004859 Refractory oxide support, Friedel-Crafts metal halide, platinum group metal
04/02/1991US5004719 Containing one or more of silica, alumina or hafnium oxide; catalyst supports
04/02/1991US5004718 Removal of sulfur by treating oxides of titanium, molybdenum, tungsten, vanadium with fresh hot air in furnace
03/1991
03/30/1991WO1991004943A2 Zeolite aggregates and catalysts
03/28/1991DE3931346A1 Supported metal oxide catalyst - obtd. by mixing solns. of organic metal salts, with cellulose deriv. impregnating support with mixt., drying and calcining
03/27/1991EP0418573A1 Process for treating new or aged graphite powder to improve its effectiveness as a support for metal catalysts
03/27/1991EP0418305A1 A layered automotive catalytic composite.
03/26/1991WO1991004097A1 Regeneration or activation of noble metal catalysts using fluorohalocarbons or fluorohalohydrocarbons
03/26/1991US5003121 Production of alkyl aromatic compounds
03/26/1991US5002922 Oxides of Zirconium Copper, Cobalt and/or Nickel
03/26/1991US5002918 Molded articles based on pyrogenically produced mixed-oxide systems of silicon dioxide and aluminum oxide, a method for manufacturing them and their use
03/26/1991CA2067113A1 Regeneration or activation of noble metal catalysts using fluorohalocarbons or fluorohalohydrocarbons
03/20/1991EP0417538A1 Catalyst for reducing nitrogen oxides in a flue gas and method for producing said catalyst
03/19/1991US5001101 Sulfiding of hydrogel derived catalysts
03/19/1991US5001100 Catalyst used in a process for producing pyromellitic dianhydride
03/19/1991US5000931 Halogen modification of aluminophosphate molecular sieves
03/19/1991CA1281703C Poly-metal-containing catalyst
03/14/1991DE3929521A1 Directly heated air cleaning catalyst - comprising oxidn. catalyst-coated metal wire or strip
03/13/1991EP0416304A2 Chromium compounds and uses thereof
03/13/1991EP0416140A1 Device for removing hydrogen and harmful substances from a gas mixture containing hydrogen and oxygen
03/13/1991CN1049850A Process for preparing vanadium-based catalyst suitable for olefin polymerisation
03/12/1991US4999328 Hydrocracking of heavy oils in presence of petroleum coke derived from heavy oil coking operations
03/12/1991CA1281314C Catalytic cracking catalysts and cracking process using non-zeolitic molecular sieves
03/07/1991WO1990015020A3 High-temperature aerosol decomposition process and products produced
03/05/1991US4997801 In situ sulfurization
02/1991
02/27/1991EP0414411A2 Extrusion die construction and its method of manufacture
02/27/1991CN1049461A Process for preparing chlorofluorocarbons via in situ generated activated aluminium trihalide catalyst and products resulting therefrom
02/26/1991US4996031 Catalyst support material containing lanthanides
02/26/1991US4996015 Methods of producing ceramic honeycomb structures
02/21/1991WO1991002044A1 A metals scavenging composition and its use in catalytic cracking
02/20/1991CN1049320A Catalyst for selective oxidation of sulphur compounds to elemental sulphur, process for preparing such catalyst and method for seletive oxidation of sulphur compounds to elemental sulphur
02/20/1991CN1049301A Noble metals load-carbon oxide accelerator
02/20/1991CN1011664B Improved syngas conversion catalyst, production and use thereof
02/19/1991US4994430 Method of preparing a plate-like support bearing catalytically active compounds
02/19/1991US4994428 Method for preparing a promoted iron catalyst and catalyst prepared by the method for conversion of synthesis gas to liquid hydrocarbons
02/19/1991US4994425 Magnesia-silica cogels with controlled porosity for hydrorefining catalysts
02/19/1991US4994422 Microspheres coated with catalyst and methods of producing same
02/13/1991EP0412931A1 Process for production of a porous ceramic body
02/13/1991EP0412785A1 A method of pretreating a particulate catalyst
02/13/1991EP0412729A1 Process for preparing a vanadium-based catalyst suitable for olefin polymerisation
02/13/1991EP0412415A1 Palladium catalysts
02/12/1991US4992614 Reactivation of partially deactivated catalyst employing ultrasonic energy
02/12/1991US4992480 Mixture of metal carbonyl and alkoxide
02/12/1991US4992409 Group 1A and Group 2A metals dissolved in a sol
02/12/1991US4992407 Catalyst consisting of a metal layer system for the removal of hydrogen from a gas mixture
02/12/1991US4992406 Alumina or zirconia binder
02/12/1991US4992403 Catalysts for hydrotreating hydrocarbons and methods of preparing the same
02/12/1991US4992160 Conversion of crude oil feeds by catalytic cracking
02/09/1991CA2022767A1 Process for manufacturing a ceramic foam body
02/08/1991CA2021434A1 Catalyst pretreatment method
01/1991
01/30/1991CN1048843A Process of oxidizing aliphatic hydrocarbons employing alkali-promoted molybdate catalyst
01/29/1991US4988654 Dual component cracking catalyst with vanadium passivation and improved sulfur tolerance
01/23/1991EP0409680A1 Pretreatment process of a refining catalyst
01/23/1991EP0409679A1 Process for the activation of halogenated catalysts, catalysts obtained by this process and application of these catalysts in hydrocarbon conversion processes
01/23/1991EP0409355A1 Process of oxidizing aliphatic hydrocarbons in the presence of a solid heterogeneous catalyst and catalyst
01/23/1991EP0409353A1 Catalyst and process for the selective oxidation of hydrogen sulphide to elemental sulphur
01/22/1991US4987265 Process for the preparation of benzaldehyde in the gas phase
01/22/1991US4986975 Process for purifying hydrogen chloride from pyrolysis of 1,2-dichloroethane
01/18/1991CA2021324A1 Process for the pretreatment of a refining catalyst
01/16/1991EP0407809A1 Preparation process of a catalytically active layer for the manufacture of cyanhydric acid
01/16/1991EP0407711A1 Catalytic process for the dehydrohalogenation of 1-chloro-1,1-difluoroethane
01/16/1991CN1011232B Improved aldehyde hydrogenation catalyst and process
01/15/1991US4985387 Catalyst supports/catalysts for the treatment of vehicular exhaust gases
01/10/1991WO1991000144A1 Homogeneous catalyst formulations for methanol production
01/10/1991DE4021570A1 Heat resistant supported catalyst - esp. for cleaning automobile exhaust gases
01/09/1991EP0407203A1 High silica crystalline zeolites and process for their preparation
01/09/1991EP0406748A2 Dehydrofluorination and dehydrogenation of fluorinated alkanes
01/08/1991US4983563 Consolidation, heat treatment, roasting; catalysts and supports
01/08/1991US4983559 Process for presulfurizing with phosphorous and/or halogen additive
01/08/1991US4983558 Sulfiding new or regenerated hydrorefining catalyst using organic polysulfides or polythioethers in absence of hydrogen
01/08/1991US4983261 Method of applying a catalyst layer consisting of precious metals and/or precious metal compounds to a substrate of ceramic material
01/05/1991CA2019849A1 High silica crystalline zeolites and process for their preparation
01/02/1991EP0406069A2 Method for removing nitrogencontaining organic compounds from crystalline metallosilicate
01/02/1991EP0182814B1 Halosilane catalyst and process for making same
01/02/1991CN1048175A Solid vulcanizing agent for cobalt-molybdenum series catalyst vulcanization and preparation thereof
01/02/1991CN1048172A Coated catalysts useful for hydrogenation of maleic anhydride to tetrahydrofuran and gamma-butyrolactone
01/01/1991US4981982 Neutralization
01/01/1991US4981831 Twice-aged porous inorganic oxides, catalysts, and polymerization processes
01/01/1991US4981828 Catalyst for hydrotreatment of hydrocarbons and method for production thereof
12/1990
12/27/1990EP0404408A1 Use of coated catalysts for the hydrogenation of maleic anhydride to tetrahydrofuran and gammabutyrolactone