Class 502/217 - Sulfate

Subclass of Class 502 - Catalyst, solid sorbent, or support therefor: product or process of making
Definition: Composition in which the sulfur is combined with four oxygen
No. of patents: 205
Last issue date: 08/02/2011

«First «Previous 1 2 3 4 5 6 Next»Last»

Number	Title	Issue Date
5036035	Solid strong acid catalyst process for the production of the same and use thereof A solid strong acid catalyst useful for hydrocarbon reactions, especially for the skeletal isomerization of paraffinic hydrocarbons is provided by supporting sulfate (SO4) and at least one member selected from Group VIII metals on a support con...	07/30/1991
5004718	Process for calcining a denitrating catalyst A process for calcining a sulfate-containing denitrating catalyst to reduce the sulfate content therein is provided. A plurality of catalyst units are arranged on a reticulating belt in a calcining furnace. The reticulate belt is continuously moving withi...	04/02/1991
4992252	Method for production of hydroxylammonium salt A process for producing hydroxylammonium salts of hydrogenating nitrogen monoxide in an acidic medium in the presence of a catalyst which is prepared by subjecting a platinum compound to a first reductive treatment with a thiosulfate or a thiosulfate comb...	02/12/1991
4952548	Catalyst for removing nitrogen oxides A catalyst for removing nitrogen oxides contained in exhaust gases, particularly those containing vapor-form catalyst poisons, by catalytic reduction with ammonia, while retaining a high denitration performance for a long time, which catalyst comprises ti...	08/28/1990
4929586	Catalysts for selective catalytic reduction DeNOx technology Catalysts for the selective catalytic reduction of NOx by ammonia are made from porous formed supports having a certain fraction of the pores with pore diameters larger than 600 Angstrom units. Thus macropores can be introduced in a formed TiO2...	05/29/1990
4921826	Process for producing an active carbon catalyst Process for producing an active catalyst by ammonia treatment of active carbons at high temperatures, in which an active carbon/active coke is impregnated with an aqueous solution of ammonium sulphate, which can be reacted with sulphuric acid, is dried at...	05/01/1990
4918036	Cracking catalyst/sulfur oxide gettering agent compositions Sulfur oxide gettering agents which comprise a metal sulfate, such as magnesium sulfate, are described. These getterin agents are used to reduce sulfur oxide emissions from a variety of processes and units, including fluid catalytic cracking (FCC) units....	04/17/1990
4918041	Catalyst for hydrocarbon conversion and conversion process utilizing the same A sulfated calcined solid catalyst is provided which comprises (1) oxide or hydroxide or Group III or Group IV, e.g. zirconium, metal, (2) oxide or hydroxide or Group V, Group VI or Group VII, e.g. manganese, metal and (3) oxide or hydroxide or Group VIII...	04/17/1990
4914073	Process for the manufacture of catalytic elements and catalytic elements so produced A process for the manufacture of catalysts for the reduction of nitrogen oxides in exhaust gases or for chemical air cleaning processes, in which catalyst moldings are produced from a mixture of solid primary materials which include iron oxide or mixtures...	04/03/1990
4912082	Catalyst for carbon monoxide oxidation A catalyst for the combination of CO and O2 to form CO2 which includes a platinum group metal--e.g., platinum; a reducible metal oxide having multiple valence states--e.g., SnO2 ; and a compound which can bind water to its...	03/27/1990
4895821	Process for the manufacture of catalytic elements and catalytic elements so produced This invention relates to a process for the manufacture of catalysts for the reduction of nitrogen oxides in exhaust gases or for chemical air cleaning processes, in which catalyst moldings are produced from iron oxide or mixtures of iron oxide and chromi...	01/23/1990
4891348	Catalyst for removing nitrogen oxides in exhaust gases A catalyst for removing nitrogen oxides in an exhaust gas, said catalyst containing a first group of many pores having a diameter of 1×102 Å to less than 1×103 Å and a second group of many pores having a diameter of 1×103	01/02/1990
4853357	Olefin oxidation catalyst system The additional of redox-active metal components and ligands, alternatively or simultaneously, results in increased conversion and selectivity in the palladium-catalyzed oxidation of olefins to carbonyl products in the presence of polyoxoanions. In preferr...	08/01/1989
4831004	Impregnated alumina-containing material A composition of matter is prepared by a process comprising the steps of impregnating a alumina-containing support material with a thiosulfate (preferably ammonium thiosulfate), drying the thus impregnated material, impregnating the dried material with a ...	05/16/1989
4820676	Treated alumina material for fixed hydrofining beds and process for its preparation A process for preparing impregnated substantially spherical alumina-containing particles comprises the steps of impregnating specific starting material with (NH4)2 SO4 and then heating the thus impregnated material at abou...	04/11/1989
4798817	Selective catalytic reduction catalyst consisting of iron sulfate, ceria and alumina An SCR catalyst consisting essentially of iron sulfate or oxysulfur iron compound carried by a mixture of ceria and alumina on a support....	01/17/1989
4780445	Selective catalytic reduction catalyst consisting essentially of nickel and/or manganese sulfate, ceria and alumina An SCR catalyst consisting essentially of at least one oxysulfur compound of manganese, nickel or mixtures thereof, carried by a supported mixture of ceria and alumina. The catalyst is characterized by its high activity and by its stability even when used...	10/25/1988
4778588	Hydrotreating process employing an impregnated alumina containing material A composition of matter is prepared by a process comprising the steps of impregnating a alumina-containing support material with a thiosulfate (preferably ammonium thiosulfate), drying the thus impregnated material, impregnating the dried material with a ...	10/18/1988
4771026	Catalyst in the form of a plate for nitrogen oxide reduction in exhaust gases The invention relates to a catalyst in the form of a plate for nitrogen oxide reduction in exhaust gases manufactured by molding granular Cr2 O3 or a mixture of granular Fe2 O3 with Cr2 O3 ...	09/13/1988
4766103	Preparation of 1,4-dichlorobenzene 1,2-dichlorobenzene is isomerized to 1,4-dichlorobenzene in the presence of a catalyst comprising (a) at least one of AlCl3 and AlBr3 and (b) at least one of iodine, alkaline earth metal halides and sulfates and lanthanide halides. B...	08/23/1988
4758545	Process for the manufacture of catalyst moldings from granular catalyst material such as iron ore or chromium ore with the use of a binder A process for the manufacture of catalyst moldings from granular catalyst material, preferably iron ore, chromium ore or a similar ore, with the use of a binder is disclosed. The granular catalyst material is thermally pre-treated in a temperature range o...	07/19/1988
4751212	Process for the manufacture of a catalyst for the reduction of nitrogen oxides in exhaust gases The invention relates to a process for the manufacture of a catalyst for the reduction of nitrogen oxides in exhaust gases. The catalyst contains a metal oxide. The catalyst is preferably used for catalytic reduction with ammonia. The process comprises sc...	06/14/1988
4746483	Process for the manufacture of catalyst molding In a process for the manufacture of catalyst moldings a natural raw material containing Fe2 O3, Cr2 O3 or another such catalyst component such as TiO2, NbO2, WO3, V2 O...	05/24/1988
4727201	Preparation of 1,4-dichlorobenzene 1,2-dichlorobenzene is isomerized to 1,4-dichlorobenzene in the presence of a catalyst comprising (a) at least one of AlCl3 and AlBr3 and (b) at least one of iodine, alkaline earth metal halides and sulfates and lanthanide halides. B...	02/23/1988
4721816	Preparation of nonionic surfactants Alkylene oxide adducts of higher alkanols are prepared by a process which comprises contacting and reacting an alkylene oxide reactant comprising one or more C2 to C4 vicinal alkylene oxides with an alkanol reactant comprising one or...	01/26/1988
4720474	Olefin oxidation catalyst system The addition of redox-active metal components and ligands, alternatively or simultaneously, results in increased conversion and selectivity in the palladium-catalyzed oxidation of olefins to carbonyl products in the presence of polyoxoanions. In preferred...	01/19/1988
4695437	Selective catalytic reduction catalysts An SCR catalyst consisting essentially of at least one oxysulfur compound of manganese, nickel of mixtures thereof, carried by a supported mixture of ceria and alumina. The catalyst is characterized by its high activity and by its stability even when used...	09/22/1987
4695438	Selective catalytic reduction catalysts An SCR catalyst consisting essentially of iron sulfate or oxysulfur iron compound carried by a mixture of ceria and alumina on a support....	09/22/1987
4695559	Catalyst for the selective reduction of nitrogen oxides in waste gases and process for the manufacture of such a catalyst A catalyst for use with ammonia for the selective reduction of nitrogen oxides in waste gases. The catalyst comprises a mixture of substances which has high activity and selectivity with regard to nitrogen oxide conversion and high sorption capabilities w...	09/22/1987
4666632	Process for the preparation of anthraquinone Anthraquinone is produced by reacting phthalic anhydride with benzene in the liquid phase over a super acid catalyst which may be an oxide of the Group 4b metals zirconium, hafnium, and titanium, or the Group 5b metals niobium, tantalum, and vanadium, pre...	05/19/1987
4659687	Hydrogenation catalysts and process of making said catalyst Novel alumina-supported nickel boride catalysts prepared by the borohydride promoted reduction of nickel arsenate are described. Method of catalyst preparation and process for hydrogenation of acetylenic and diolefinic compounds employing the invention ca...	04/21/1987
4629716	Process for producing narrow-pore catalyst supports This invention relates to a process for preparing catalyst supports with a narrow pore size distribution by simultaneously titrating an acid aluminum species, a basic aluminum species and a phosphorus oxide. The porous alumina supports have surface areas ...	12/16/1986
4594335	Transition metal aluminates Crystalline transition metal aluminate compounds are formed by reacting transition metal compounds with crystalline hydrous alumina, such as gibbsite, bayerite, norstrandite, boehmite and the like. The crystalline hydrous alumina may be unsupported by a s...	06/10/1986
4546093	Preparation of catalyst system for the synthesis of 2-6-xylenol A process for preparing a 3-component catalyst system consisting of manganic oxide, ferric oxide and zinc oxide, which are adjusted to have an atomic ratio of Mn:Fe:Zn from 90:20:20 to 99:0.01:0.01, is used for the catalytic synthesis of 2,6-xylenol from ...	10/08/1985
4537867	Promoted iron-cobalt spinel catalyst for Fischer-Tropsch processes Iron-cobalt spinels which contain low levels of cobalt, in an iron/cobalt atomic ratio of 7:1 to 35:1, are converted to Fischer-Tropsch catalysts upon reduction and carbiding that exhibit high activity and selectivity to C2 --C6 olef...	08/27/1985
4521529	Catalyst for cracking kerosene A catalyst capable of cracking kerosene under lower pressure and temperature comprising (A) kerosene; (B) metal powder mixture of chromium powder, copper powder, lead powder, zinc powder, nickel powder, manganese powder in an amount of 12 to 13 parts by w...	06/04/1985
4518707	Process for preparing high surface area iron/cobalt Fischer-Tropsch slurry catalysts Slurried high surface area Fe-Co spinels which are fully reduced/carburized provide exceptionally high activity and selectivity in the conversion of CO/H2 to alpha-olefins. These iron-cobalt catalysts maintain good activity and selectivity unde...	05/21/1985
4507494	Process for the production of a diester of oxalic acid In a process for preparing a diester of oxalic acid by the vapor phase catalytic reaction of carbon monoxide with an ester of nitrous acid in the presence of a catalyst composed of a solid carrier and a catalyst component supported on the carrier, the imp...	03/26/1985
4485189	Catalyst for the desulfurization of industrial waste gases and process for its preparation Industrial waste gases containing objectionable/polluting compounds of sulfur, e.g., H2 S, SO2 and such organosulfur derivatives as COS, CS2 and mercaptans, are catalytically desulfurized, e.g., by Claus process, employing...	11/27/1984
4482635	Composition, indicator, process and device for detecting carbon monoxide There are disclosed an improved CO indicating composition consisting essentially of fumed silica having dispersed thereon dry residues of impregnation with a solution of palladium sulfate, sulfuric acid and ammonium molybdate, a CO indicator comprising a ...	11/13/1984

«First «Previous 1 2 3 4 5 6 Next»Last»

PatentStorm

Quotables

PatentStorm News

Class 502/217 - Sulfate