Patents by Inventor Allan E. Barnett
Allan E. Barnett has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 4593014Abstract: Disclosed are catalyst support compositions comprised of alumina and titania at a weight ratio of about 0.3:1 to 1:0.3 respectively, and solid porous particles.Type: GrantFiled: January 22, 1985Date of Patent: June 3, 1986Assignee: Exxon Research and Engineering Co.Inventors: Albert P. Halluin, Allan E. Barnett
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Patent number: 4532351Abstract: Supported catalysts comprised of one or more metals of Group VIII, optionally one or more metals from Group IB and IIA, aluminum and silicate are used for hydrogenating hydrogenatable organic compounds. The catalysts can be produced by coprecipitating metal ions from Group VIII, optionally metal ions from Groups IB and IIA, aluminum ions, and silicate ions, in the presence of solid porous particles.Type: GrantFiled: June 16, 1982Date of Patent: July 30, 1985Assignee: Exxon Research and Engineering Co.Inventors: Allan E. Barnett, Albert P. Halluin
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Patent number: 4497907Abstract: Disclosed are novel catalyst support compositions and novel catalyst based thereon as well as methods for preparing same. The novel support compositions are prepared by coprecipitating aluminum ions and silicate ions in the presence of solid porous particles. One method for preparing the novel catalyst of the invention is to coprecipitate at least one catalytically active metal during the coprecipitation of the solid support composition. In preferred embodiments of the present invention the catalytically active metal is from Group VIII of the Periodic Table of the Elements, preferably nickel, and/or cobalt, and the resulting catalyst can optionally contain one or more metals from either Group IB or IIA of the Periodic Table of the Elements.Type: GrantFiled: June 16, 1982Date of Patent: February 5, 1985Assignee: Exxon Research & Engineering Co.Inventors: Albert P. Halluin, Allan E. Barnett
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Patent number: 4439544Abstract: Supported coprecipitated cobalt-silica hydrogenation catalysts are disclosed. The catalysts are prepared by: preparing an aqueous reaction mixture containing cobalt cations, silicate anions and solid porous carrier particles under agitation to form a coprecipitate of the cobalt and silicate ions onto said solid porous support particles; heating the aqueous reaction mixture; and adding an alkaline precipitating agent to further precipitate the cobalt and silicate ions onto said solid porous carrier particles. The aqueous reaction mixture may additionally include copper cations.Type: GrantFiled: June 24, 1980Date of Patent: March 27, 1984Assignee: Exxon Research and Engineering Co.Inventors: James L. Carter, Allan E. Barnett
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Patent number: 4420648Abstract: Supported coprecipitated cobalt-silica hydrogenation catalysts are disclosed. The catalysts are prepared by: preparing an aqueous reaction mixture containing cobalt cations, silicate anions and solid porous carrier particles under agitation to form a coprecipitate of the cobalt and silicate ions onto said solid porous support particles; heating the aqueous reaction mixture; and adding an alkaline precipitating agent to further precipitate the cobalt and silicate ions onto said solid porous carrier particles. The aqueous reaction mixture may additionally include copper cations.Type: GrantFiled: September 19, 1979Date of Patent: December 13, 1983Assignee: Exxon Research and Engineering Co.Inventors: James L. Carter, Allan E. Barnett
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Patent number: 4318829Abstract: Supported coprecipitated catalyst comprised of aluminum and metals from Group VIII and Groups IIA of the Periodic Table of the Elements are disclosed. The catalyst are produced by preparing an aqueous mixture containing the ions of said metals, aluminum ions, and solid porous support particles to form a reaction mixture of the metal ions and aluminum ions with the solid porous support particles. The reaction mixture is heated and a precipitating agent added to coprecipitate solid support particles.Type: GrantFiled: November 21, 1980Date of Patent: March 9, 1982Assignee: Exxon Research & Engineering Co.Inventors: Albert P. Halluin, Allan E. Barnett
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Patent number: 4307248Abstract: Supported coprecipitated catalysts comprised of one or more metals of Group VIII, one or more metals of Group IIA, and aluminum are used for hydrogenating hydrogenatable organic compounds. The catalysts are produced by preparing, under agitation; an aqueous mixture containing ions of Group VIII, Group IIA, and aluminum, as well as solid porous particles to form a coprecipitate of the metal ions and aluminum ions with the solid porous support particles; heating the aqueous reaction mixture; and adding precipitating agent to precipitate the metal ions and aluminum ions onto the solid support.Type: GrantFiled: November 28, 1980Date of Patent: December 22, 1981Assignee: Exxon Research & Engineering Co.Inventors: Allan E. Barnett, Albert P. Halluin
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Patent number: 4273680Abstract: Supported coprecipitated non-ferrous Group VIII metal aluminum catalysts are disclosed. The catalysts are produced by preparing an aqueous mixture containing the metal ions, aluminum ions and solid porous support particles under agitation to form a coprecipitate of the metal ions and aluminum ions with the solid porous support particles; heating the aqueous reaction mixture; and adding precipitating agent to further precipitate the metal ions and aluminum ions onto the solid support.Type: GrantFiled: November 6, 1979Date of Patent: June 16, 1981Assignee: Exxon Research & Engineering Co.Inventors: Albert P. Halluin, Allan E. Barnett
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Patent number: 4273939Abstract: Supported coprecipitated non-ferrous Group VIII metal aluminum catalysts are used for hydrogenating hydrogenatable organic compounds. The catalysts are produced by preparing an aqueous mixture containing the metal ions, aluminum ions and solid porous support particles under agitation to form a coprecipitate of the metal ions and aluminum ions with the solid porous support particles; heating the aqueous reaction mixture; and adding precipitating agent to further precipitate the metal ions and aluminum ions onto the solid support.Type: GrantFiled: November 6, 1979Date of Patent: June 16, 1981Assignee: Exxon Research & Engineering Co.Inventors: Allan E. Barnett, Albert P. Halluin
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Patent number: 4263225Abstract: Supported coprecipitated nickel-cobalt-silica and nickel-cobalt-copper-silica hydrogenation catalysts are disclosed. The catalysts are prepared by preparing an aqueous reaction mixture containing nickel and cobalt cations (and optionally copper cations), silicate anions and solid porous carrier particles under agitation to form a coprecipitate of the nickel, cobalt (and optionally copper) and silicate ions onto said solid porous support particles; heating the aqueous reaction mixture; and adding an alkaline precipitating agent to further precipitate the nickel, cobalt (and optionally copper) and silicate anions onto said solid porous carrier particles.Type: GrantFiled: September 19, 1979Date of Patent: April 21, 1981Assignee: Exxon Research & Engineering Co.Inventors: James L. Carter, Allan E. Barnett, John H. Sinfelt
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Patent number: 4263173Abstract: Supported coprecipitated nickel-cobalt-silica and nickel-cobalt-copper-silica hydrogenation catalysts are disclosed. The catalysts are prepared by preparing an aqueous reaction mixture containing nickel and cobalt cations (and optionally copper cations), silicate anions and solid porous carrier particles under agitation to form a coprecipitate of the nickel, cobalt (and optionally copper) and silicate ions onto said solid porous support particles; heating the aqueous reaction mixture; and adding an alkaline precipitating agent to further precipitate the nickel, cobalt (and optionally copper) and silicate anions onto said solid porous carrier particles.Type: GrantFiled: January 2, 1979Date of Patent: April 21, 1981Assignee: Exxon Research & Engineering Co.Inventors: James L. Carter, Allan E. Barnett, John H. Sinfelt
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Patent number: 4251672Abstract: A copper promoted massive nickel catalyst is disclosed which is capable of having a reduced nickel surface area ranging from about 55 to about 100 m.sup.2 /g as determined by hydrogen chemisorption, after reduction at 400.degree. C., and a B.E.T. total surface area ranging from about 150 to about 300 m.sup.2 /g, wherein the amount of copper in the catalyst ranges from about 2 wt. % to about 10 wt. % and the amount of nickel ranges from about 25 wt. % to about 50 wt. %, said wt. % of copper and nickel metal are based on the total weight of the catalyst. The copper promoted massive catalysts are prepared by the steps comprising comingling a solution containing copper and nickel cations with another solution containing silicate anions and coprecipitating the copper, nickel and silicate ions in an aqueous solution onto solid carrier particles. The catalysts are useful in hydrogenation processes.Type: GrantFiled: August 25, 1978Date of Patent: February 17, 1981Assignee: Exxon Research & Engineering Co.Inventors: James L. Carter, Allan E. Barnett
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Patent number: 4251394Abstract: A copper promoted massive nickel catalyst is disclosed which is capable of having a reduced nickel surface area ranging from about 55 to about 100 m.sup.2 /g as determined by hydrogen chemisorption, after reduction at 400.degree. C., and a B.E.T. total surface area ranging from about 150 to about 300 m.sup.2 /g, wherein the amount of copper in the catalyst ranges from about 2 wt. % to about 10 wt. and the amount of nickel ranges from about 25 wt. % to about 50 wt. %, said wt. % of copper and nickle metal are based on the total weight of the catalyst. The copper promoted massive catalysts are prepared by the steps comprising comingling a solution containing copper and nickel cations with another solution containing silicate anions and coprecipitating the copper, nickel and silicate ions in an aqueous solution onto solid carrier particles. The catalysts are useful in hydrogenation processes.Type: GrantFiled: August 25, 1978Date of Patent: February 17, 1981Assignee: Exxon Research & Engineering Co.Inventors: James L. Carter, Allan E. Barnett
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Patent number: 4246140Abstract: Supported coprecipitated nickel-cobalt-silica and nickel-cobalt-copper-silica hydrogenation catalysts are disclosed. The catalysts are prepared by preparing an aqueous reaction mixture containing nickel and cobalt cations (and optionally copper cations), silicate anions and solid porous carrier particles under agitation to form a coprecipitate of the nickel, cobalt (and optionally copper) and silicate ions onto said solid porous support particles; heating the aqueous reaction mixture; and adding an alkaline precipitating agent to further precipitate the nickel, cobalt (and optionally copper) and silicate anions onto said solid porous carrier particles.Type: GrantFiled: January 2, 1979Date of Patent: January 20, 1981Assignee: Exxon Research & Engineering Co.Inventors: James L. Carter, Allan E. Barnett, John H. Sinfelt
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Patent number: 4090980Abstract: This invention pertains to a method of stabilizing, with respect to atmospheric air, a bed containing pyrophoric reduced metal catalyst with high active metal surface area formed by reduction of a compound of said metal at an elevated temperature ranging from 200.degree. to 500.degree. C. which comprises:(a) continuously circulating through said bed a stream of inert gas while maintaining a catalyst temperature of at least 300.degree. F. (149.degree. C.);(b) cooling the catalyst throughout the bed with said inert gas until the catalyst in said bed attains a temperature ranging from 50.degree. F. (10.degree. C.) to 100.degree. F. (38.degree. C.);(c) decreasing the inert gas flow and progressively adding CO.sub.2 until the CO.sub.2 concentration in the gas stream is at least 80%;(d) adding O.sub.2 to the gas stream to obtain about 0.05 vol % O.sub.2 in the gas stream and continuing this flow until a sufficient amount of O.sub.Type: GrantFiled: May 6, 1977Date of Patent: May 23, 1978Assignee: Exxon Research & Engineering Co.Inventors: James L. Carter, Allan E. Barnett
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Patent number: 4018670Abstract: Hydrocarbon materials are converted to useful products by contacting the same at elevated temperatures with a catalyst comprising a refractory support in association with greater than 0.1 wt. % iridium, and 0.1 - 1.0 wt. % of at least one additional metal. The iridium and additional catalyst metal, preferably platinum, are present on the surface of the support preferably as highly dispersed polymetallic clusters with metal surface areas of at least 200 square meters per gram of metal. The catalyst is particularly effective for promoting naphtha reforming operations.Type: GrantFiled: July 30, 1974Date of Patent: April 19, 1977Assignee: Exxon Research and Engineering CompanyInventors: John H. Sinfelt, Allan E. Barnett
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Patent number: 3989674Abstract: In the partial oxidation of olefinic hydrocarbons directly to their corresponding unsaturated carbonyl compounds, a significant increase in selectivity to the unsaturated carbonyl compounds is obtained by reacting an olefinic compound with oxygen in the presence of a novel bimetallic catalyst system comprising a combination of gold and copper.Type: GrantFiled: March 26, 1969Date of Patent: November 2, 1976Assignee: Exxon Research and Engineering CompanyInventors: John H. Sinfelt, Allan E. Barnett