Abstract: A process for the liquid-phase hydrogenation of maleic anhydride to .gamma.-butyrolactone in the presence of a catalyst composed of cobalt oxide and palladium on a support of silica.
Abstract: A process for converting mixtures of C.sub.6 to C.sub.30 n-paraffin and n-paraffin by-products to substantially pure n-paraffin which comprises catalytically hydrogenating the mixture at a temperature of from about 600.degree. to 750.degree. F. in the presence of a Group VIII metal on alumina catalyst where the catalyst contains from about 0.05 to 2.0 weight percent of an alkali metal oxide or alkaline earth metal oxide or thallous oxide. The catalyst can additionally contain a Group VIB or VIIB metal.
Type:
Grant
Filed:
December 26, 1973
Date of Patent:
August 16, 1977
Assignee:
Texaco Inc.
Inventors:
Robert M. Suggitt, Walter C. Gates, Jr.
Abstract: Novel acylhydroximyl halides are provided and prepared by contacting a nitroalkanone with a halogen acid in the presence of an organic acid or alcohol.
Abstract: A method of preparing an omega-nitroalkanoic acid is provided by contacting an ammonium, Group IA or Group IIA metal salt of a nitrocycloalkanone with an acidic mineral acid salt in an aqueous medium.
Abstract: A process for converting mixtures of C.sub.6 to C.sub.30 n-paraffin and n-paraffin by-products to substantially pure n-paraffin which comprises catalytically hydrogenating the mixture at a temperature of from about 600.degree. to 750.degree. F. in the presence of a Group VIII metal on alumina catalyst where the catalyst contains from about 0.05 to 2.0 weight percent of an alkali metal oxide or alkaline earth metal oxide or thallous oxide. The catalyst can additionally contain a Group VIB or VIIB metal.
Type:
Grant
Filed:
January 26, 1976
Date of Patent:
May 24, 1977
Assignee:
Texaco Inc.
Inventors:
Robert M. Suggitt, Walter C. Gates, Jr.
Abstract: A continuous process for producing gamma-butyrolactone by hydrogenating maleic anhydride in two stages in the presence of a catalyst composed of cobalt oxide and palladium on a support of silica. The hydrogenation is performed at a hydrogen pressure of 100 to 125 atmospheres and at a temperature of 50.degree. to 100.degree. C. in the first stage and at 190.degree. to 220.degree. C. in the second stage.
Type:
Grant
Filed:
January 12, 1976
Date of Patent:
May 24, 1977
Assignee:
Deutsche Texaco Aktiengesellschaft
Inventors:
Lothar Sandhack, Werner Webers, Georg Michalczyk, Karl-Heinz Gluzek
Abstract: This invention relates to a process for catalytically cracking hydrocarbon feedstocks containing a contaminant deleterious to the process and catalyst and to a method for removing the contaminant from a crystalline aluminosilicate cracking catalyst used in the process, where the contaminant is vanadium, or vanadium and nickel, and optionally iron.
Abstract: A method of preparing carboxylic acids is provided by contacting an ammonium, Group IA or Group IIA metal salt of a nitroketone in an aqueous medium. The method is preferably undertaken in the presence of an acidic mineral acid salt.
Abstract: A process for producing secondary alcohols from n-paraffins wherein a portion of the n-paraffin is converted to a borate ester along with oxygenated by-products and the borate ester is separated and hydrolyzed to a secondary alcohol. The mixtures of C.sub.6 to C.sub.30 n-paraffin and n-paraffin by-products are converted to substantially pure n-paraffin by catalytically hydrogenating the mixture at a temperature of from about 600.degree. to 750.degree. F. in the presence of a Group VIII metal on alumina catalyst where the catalyst contains from about 0.05 to 2.0 weight percent of an alkali metal oxide or alkaline earth metal oxide or thallous oxide. The catalyst can additionally contain a Group VIB or VIIB metal.
Type:
Grant
Filed:
January 26, 1976
Date of Patent:
March 22, 1977
Assignee:
Texaco Inc.
Inventors:
Robert M. Suggitt, Walter C. Gates, Jr.
Abstract: A process for converting maleic anhydride to .gamma.-butyrolactone by treating the anhydride with hydrogen in the presence of co-catalysts comprising palladium and nickel-copper chromite at elevated pressures and temperatures.
Abstract: A process for converting .gamma.-butyrolactone to tetrahydrofuran by treating the lactone with hydrogen in the presence of a cobalt-copper chromite catalyst at elevated pressures and temperatures.
Abstract: Alkylamides are prepared by heating an acylhydroximyl halide in an oxygenated polar organic solvent at a temperature of about 70.degree. to 190.degree. C. The alkylamides herein prepared are useful as fuel and lubricant additives and as intermediates in the preparation of acids, nitriles and amines.
Abstract: A method of simultaneously preparing a carboxylic acid and a hydroxamic acid which comprises contacting an ammonium, Group IA or Group IIA salt of an alkyl alphanitroketone with an acidic mineral acid salt in a carboxylic acid solvent.
Abstract: A method of preparing omega-carboxyalkanohydroxamic acids is provided by contacting an ammonium, Group IA or Group IIA metal salt of a nitrocycloalkanone with an acidic mineral acid salt in a carboxylic acid solvent.
Abstract: A process for the liquid-phase hydrogenation of maleic anhydride to .gamma.-butyrolactone in the presence of a catalyst composed of cobalt oxide and palladium on a support of silica.
Abstract: A process for converting mixtures of C.sub.6 to C.sub.30 n-paraffin and n-paraffin by-products to substantially pure n-paraffin which comprises catalytically hydrogenating the mixture at a temperature of from about 600.degree. to 750.degree. F. in the presence of a Group VIII metal on alumina catalyst where the catalyst contains from about 0.05 to 2.0 weight percent of an alkali metal oxide or alkaline earth metal oxide or thallous oxide. The catalyst can additionally contain a Group VIB or VIIB metal. The n-paraffin is photochemically reacted with a gaseous nitrosating agent to form paraffin oximes and by-products and the by-products are recycled for catalytic hydrogenation.
Type:
Grant
Filed:
January 26, 1976
Date of Patent:
November 23, 1976
Assignee:
Texaco Inc.
Inventors:
Robert M. Suggitt, Walter C. Gates, Jr.
Abstract: A process for increasing the octane number of a paraffinic gasoline blending component comprises a reforming operation in which the component is contacted with hydrogen in the presence of a novel catalyst prepared by depositing a noble metal on silica gel and then dispersing said silica gel in an alumina gel matrix.
Type:
Grant
Filed:
June 10, 1974
Date of Patent:
October 19, 1976
Assignee:
Texaco Inc.
Inventors:
Raymond F. Wilson, Li C. Mih, John T. Brandenburg, Reese A. Peck
Abstract: This invention relates to a process for catalytically cracking hydrocarbon feedstocks containing a contaminant deleterious to the process and catalyst and to a method for removing the contaminant from a crystalline aluminosilicate cracking catalyst used in the process, where the contaminant is vanadium, or vanadium and nickel, and optionally iron.
Abstract: Reductive amination of C.sub.10 -C.sub.26 dialkyl internal ketones, with secondary amines, using a supported nickel catalyst, results in the production of tertiary amines in excellent yield.
Type:
Grant
Filed:
October 29, 1974
Date of Patent:
August 24, 1976
Assignee:
Texaco Inc.
Inventors:
Lawrence F. Kuntschik, Orville W. Rigdon