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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Imai; Tamotsu
Address:
Mt. Prospect, IL
No. of patents:
46
Patents:












Patent Number Title Of Patent Date Issued
5258564 Process for producing aromatic compounds from C2-C6 aliphatic hydrocarbons using a hydrogen tole November 2, 1993
A process for converting C.sub.2 to C.sub.6 aliphatic hydrocarbons to aromatics is described. The process uses a catalyst which contains a zeolite, an aluminum phosphate binder and a gallium component. Examples of zeolites which can be used are the ZSM family of zeolites, with ZSM-5
5212127 Process for reactivating a deactivated dehydrocyclodimerization catalyst May 18, 1993
This invention relates to a process for reactivating a dehydrocyclodimerization catalyst. Dehydrocyclodimerization catalysts which contain an aluminum phosphate binder can be deactivated when they are exposed to hydrogen at temperatures above 500.degree. C. The instant process restor
5169812 Catalyst and process for producing aromatic compounds from C.sub.2 -C.sub.6 December 8, 1992
A catalyst for converting C.sub.2 to C.sub.6 aliphatic hydrocarbons to aromatics is described. The catalyst contains a zeolite, an aluminum phosphate binder and a gallium component. Examples of zeolites which can be used are the ZSM family of zeolites, with ZSM-5 being a specific exa
5095161 Process and catalyst for upgrading methane to higher carbon number hydrocarbons March 10, 1992
Methane is upgraded to higher molecular weight hydrocarbons in a process using a novel catalyst comprising oxides of boron, tin and zinc. The feed admixture also comprises oxygen. The novel catalyst may comprise one or more Group I-A or II-A elements, preferably potassium and is characte
5043511 Production of alkyl aromatic compounds August 27, 1991
Alkyl aromatic compounds may be prepared by reacting an aromatic compound such as benzene with an alkylating agent such as an olefin or alkyl halide in the presence of an alkylation catalyst. The alkylation catalyst of the present invention comprises a clay which has been coextruded with
5043509 Shaped catalyst particles utilizable for the conversion of organic compounds August 27, 1991
Catalyst particles which are employed in reactions involving the conversion of organic compounds should possess a desired configuration in order to maintain a desired voidage which will permit passage of the feedstock through the catalyst bed during the conversion reaction. Solid phospho
5034118 Non-oxidative removal of hydrogen sulfide from gaseous, petrochemical, and other streams July 23, 1991
Hydrogen sulfide can be conveniently removed from streams containing up to about 1,000 ppm of H.sub.2 S by reacting the latter with an olefin using a bed of an acidic solid catalyst in a non-oxidative process for the removal of hydrogen sulfide. The reaction can be effected under relativ
5012027 Dual profile surface-impregnated dehydrogenation catalyst and process April 30, 1991
A novel catalytic composite and a process for its use is disclosed. The catalyst composite comprises a first component selected from Group IA and Group IIA elements of the Periodic Table of the Elements, a second component selected from iridium, and osmium, or mixtures thereof, a third
5003121 Production of alkyl aromatic compounds March 26, 1991
Alkyl aromatic compounds may be prepared by reacting an aromatic compound with an alkylating agent such as an olefin in the presence of an alkylation catalyst. The alkylation catalyst of the present invention comprises a composite which has been prepared by coextruding a clay compone
4973779 Hydrocarbon conversion process utilizing surface impregnated catalyst November 27, 1990
A hydrocarbon conversion process which utilizes a novel catalytic composite is disclosed. The catalyst composite comprises a platinum group metal component, a first modifier selected from Group IA and IIA elements of the Periodic Table, a second modifier component selected from the group
4886928 Hydrocarbon dehydrogenation process December 12, 1989
A novel dehydrogenation process is disclosed which utilizes a catalyst comprising a platinum group component, a component selected from the group comprising scandium, yttrium, lanthanum, and actinium, a component selected from the group comprising tin, lead, and germanium, less than 0.3
4880764 Dehydrogenation catalyst and process November 14, 1989
A novel catalytic composite and a process of its use is disclosed. The catalyst comprises a platinum group metal component, a first modifier component selected from Group IA and IIA elements of the Periodic Table, a second modifier components selected from the group of elements consistin
4857666 Alkylation/transalkylation process August 15, 1989
An alkylation-transalkylation process for the production of a monoalkylated aromatic compound is disclosed which maximizes the production of desirable monoalkylaromatic compounds, while limiting transalkylation catalyst deactivation. The process entails the combination of an alkylation
4827072 Dehydrogenation catalyst composition and hydrocarbon dehydrogenation process May 2, 1989
A novel catalytic composite comprising a platinum group metal component; a modifier metal component selected from the group consisting of a tin component, germanium component, rhenium component and mixtures thereof; an optional alkali or alkaline earth metal component or mixtures thereof
4795843 Conversion of methane into larger organic hydrocarbons January 3, 1989
Organic hydrocarbons which comprise useful compounds may be obtained in a two-step process utilizing methane as a feedstock. The desired compounds are prepared by treating said methane with a halogenating agent such as chlorine, followed by contacting the methyl halide with a conversion
4788371 Catalytic oxidative steam dehydrogenation process November 29, 1988
A novel process is disclosed for the steam dehydrogenation of dehydrogenatable hydrocarbons in the vapor phase in conjunction with oxidative reheating of the intermediate products. The process utilizes a single catalyst to perform both the selective oxidation and steam dehydrogenatio
4786625 Dehydrogenation catalyst compositon November 22, 1988
A novel catalytic composite comprising a platinum group metal component; a modifier metal component selected from the group consisting of a tin component, germanium component, rhenium component and mixtures thereof; an optional alkali or alkaline earth metal component or mixtures thereof
4775462 Non-oxidative method of sweetening a sour hydrocarbon fraction October 4, 1988
This invention relates to a non-oxidative method of sweetening a sour hydrocarbon fraction. The method comprises treating a sour hydrocarbon fraction containing mercaptans with an acid-type catalyst in the presence of an unsaturated hydrocarbon at reaction conditions thereby converting
4774377 Alkylation/transalkylation process September 27, 1988
An alkylation-transalkylation process for the production of a monoalkylated aromatic compound is disclosed which maximizes the production of desirable monoalkylaromatic compounds, while limiting transalkylation catalyst deactivation. The process entails the combination of an alkylation
4762960 Dehydrogenation catalyst composition and paraffin dehydrogenation August 9, 1988
A novel catalytic composite comprising a platinum group metal component; a modifier metal component selected from the group consisting of a tin component, germanium component, rhenium component and mixtures thereof; an alkali or alkaline earth metal component or mixtures thereof, an opti
4717779 Dehydrogenation of dehydrogenatable hydrocarbons January 5, 1988
Dehydrogenatable hydrocarbons may be subjected to a dehydrogenation reaction in which the hydrocarbons are treated with a dehydrogenation catalyst comprising a modified iron catalyst in the presence of steam in a multicatalyst bed system. The reaction mixture containing unconverted h
4716143 Dehydrogenation catalyst composition December 29, 1987
A novel catalytic composite comprising a platinum group metal component; a modifier metal component selected from the group consisting of a tin component, germanium component, rhenium component and mixtures thereof; an alkali or alkaline earth metal component or mixtures thereof, an opti
4652687 Process for the dehydrogenation of dehydrogenatable hydrocarbons March 24, 1987
Unsaturated hydrocarbons may be prepared by subjecting dehydrogenatable hydrocarbon to dehydrogenation in the presence of a dehydrogenation catalyst. The effluent stream from this step, comprising unconverted hydrocarbons, dehydrogenated hydrocarbons, hydrogen and steam, may then be
4506032 Dehydrogenation catalyst composition March 19, 1985
This invention relates to a new catalyst for converting hydrocarbons. The catalyst comprises a platinum group component, a Group IVA component, especially tin, an alkali or alkaline earth component, more than 0.2 weight %, calculated on an elemental basis, of a halogen component and a
4482767 Process for production of alcohols and LPG November 13, 1984
A hydrocarbon conversion process is disclosed for the production of lower alcohols and LPG from a mixture of C.sub.3 -minus paraffins and olefins. The feed stream is passed into a hydration zone wherein portions of the ethylene and propylene are converted to ethanol and propanol. The
4479025 Alkylaromatic hydrocarbon dehydrogenation process October 23, 1984
A hydrocarbon conversion process is disclosed for the dehydrogenation of alkylaromatic hydrocarbons such as ethylbenzene or ethyltoluene. A subatmospheric pressure is maintained in the reaction zone by the use of two separate compressors. The first compressor pressurizes the vapor phase
4438288 Dehydrogenation of hydrocarbons with a halogen contacting step March 20, 1984
This invention relates to a new process for dehydrogenating hydrocarbons utilizing a catalyst comprising a platinum group component, an alkali or alkaline earth component and a porous support material. After the catalyst is used to dehydrogenate hydrocarbons it is contacted in a catalyst
4430517 Dehydrogenation process using a catalytic composition February 7, 1984
This invention relates to a new catalyst for converting hydrocarbons. The catalyst comprises a platinum group component, a Group IVA component, especially tin, an alkali or alkaline earth component, more than 0.2 weight %, calculated on an elemental basis, of a halogen component and a
4374287 Synthesis of alcohols February 15, 1983
Alcohol may be synthesized by treating olefinic hydrocarbons with carbon monoxide and hydrogen in a hydroformylation zone utilizing a rhodium complex catalyst to effect the reaction. Following formation of the alcohol, the catalyst may be extracted from the alcohol by treatment with
4329521 Oxo alcohol synthesis with rhodium catalyst recycle May 11, 1982
Alcohols may be synthesized by treating an olefinic hydrocarbon with carbon monoxide and hydrogen in a hydroformylation zone using a rhodium complex catalyst and an amine modifier to effect the reaction. Following the formation of the alcohol, a catalyst may be extracted from said alcoho
4323712 Etherification of olefinic hydrocarbons April 6, 1982
Olefinic hydrocarbons may be etherified by reaction with an alcohol in the presence of a phthalocyanine sulfonic acid catalyst at reaction conditions which will include a temperature in the range of from about 30.degree. to about 200.degree. C. and a pressure in the range of from about 1
4299989 Preparation of ketones November 10, 1981
Ketones may be prepared from carboxylic acid esters by treating said esters at elevated temperatures in the range of from about 50.degree. to about 300.degree. C. and pressures ranging from 1 to about 300 atmospheres in the presence of a catalyst comprising a compound containing a metal
4298499 Recovery of catalysts November 3, 1981
Metallic catalysts such as Group VIII metal complexes which are used in hydroformylation reaction for the production of alcohols from olefins will be found in the product mixture. The separation and recovery of these metal catalysts from the product mixture may be accomplished by treatin
4292196 Catalyst recovery September 29, 1981
Catalysts which comprise metal carbonyls or organometallic complexes in which the metal portion of the complex is selected from a Group VIII metal are useful in hydroformylation reactions. The catalysts which are homogeneous in nature may be recovered from the hydroformylation products
4275252 Oxo alcohol synthesis with rhodium catalyst recycle June 23, 1981
Alcohol may be synthesized from olefinic hydrocarbons by treating the hydrocarbon with carbon monoxide and hydrogen in a hydroformylation zone using a rhodium complex catalyst to effect the reaction. Following formation of the alcohol, the catalyst may be extracted from the alcohol b
4269998 Production of dialkyl formamide May 26, 1981
Dialkyl formamides may be prepared by treating the corresponding dialkyl amine with carbon dioxide and hydrogen in the presence of a transition metal hydrogenation catalyst at a temperature in the range of from about 100.degree. to about 400.degree. C. and a pressure in the range of from
4267397 Hydration of olefinic compounds with dilute sulfuric acid and cobalt sulfate May 12, 1981
Olefinic compounds, and particularly olefinic hydrocarbons, containing from 2 to about 4 carbon atoms may be subjected to a direct hydration process utilizing a dilute aqueous sulfuric acid to treat the olefin at reaction conditions which will include a temperature in the range of from a
4250115 Preparation of tertiary amines February 10, 1981
Tertiary amines may be prepared by reacting an olefinic compound, carbon monoxide, hydrogen and a nitrogen-containing compound such as ammonia, a primary amine or a secondary amine in the presence of a rhodium or ruthenium-containing catalyst at temperatures in the range of from about
4221738 Production of acrylonitrile September 9, 1980
Acrylonitrile may be prepared by dehydrogenating propionitrile in the presence of dehydrogenation catalysts comprising a nonacidic complex containing a Group VIII metal and at least one metal selected from Groups IVA, VA, and VIIB of the Periodic Table. If so desired, the catalyst may
4220764 Preparation of tertiary heterocyclic amines September 2, 1980
Tertiary amines may be prepared by reacting an olefinic compound, carbon monoxide, hydrogen and a heterocyclic compound containing at least one nitrogen atom which possesses at least one hydrogen atom in the presence of a rhodium- or ruthenium-containing catalyst at temperatures in the
4219684 Synthesis of alcohols by hydroformylation with nitrile promoter August 26, 1980
Alcohols may be synthesized by reacting an olefinic compound, carbon monoxide and hydrogen in the presence of a Group VIII organometallic complex catalyst at reaction conditions which include a temperature in the range of from about 50.degree. to about 250.degree. C. and a pressure in
4207260 Preparation of tertiary amines June 10, 1980
Tertiary amines may be prepared by reacting an aldehyde, hydrogen and a nitrogen-containing compound such as ammonia, a primary amine or a secondary amine in the presence of a rhodium- or ruthenium-containing catalyst at temperatures in the range of from about 50.degree. to about 350
4204066 Preparation of alkyl pyridines May 20, 1980
Alkyl pyridines may be synthesized from a mixture of ethylene, carbon monoxide, hydrogen and ammonia by reacting the mixture in the presence of metal catalyst complexes selected from the group consisting of metal phthalocyanines and metal carbonyls which act as a catalyst for the rea
4179469 Preparation of amines December 18, 1979
Amines, which may be utilized in various chemical processes, may be prepared in a combination process wherein the product mixture resulting from the dehydrogenation of a paraffin feed stock may be reacted with a nitrogen-containing compound, carbon monoxide and hydrogen, without sepa
4175058 Catalytic composite for oxydehydrogenation of alkylaromatic hydrocarbons November 20, 1979
An active and selective catalytic composite, useful for oxydehydrogenating dehydrogenatable alkylaromatic hydrocarbons comprises a combination of catalytically effective amounts of cobalt oxide, chromium oxide, alumina and magnesium oxide with a silica carrier material. A specific exampl
4152361 Production of cyclohexene May 1, 1979
Cyclohexene may be produced from phenylcyclohexane by treating the latter compound at an elevated temperature in the presence of certain solid acidic catalysts such as zeolite or silica-alumina to produce the desired compound.










 
 
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