Using Al Or B Halide Catalyst Patents (Class 585/472)
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Publication number: 20080171902Abstract: A process for converting polyalkylaromatics to monoalkylaromatics, particulary cumene, in the presence of a modified Y-85 zeolite is disclosed. The process attains greater selectivity, reduced formation of undesired byproducts, and increased activity.Type: ApplicationFiled: January 12, 2007Publication date: July 17, 2008Inventors: Deng-Yang Jan, Robert J. Schmidt, Guy B. Woodle, Mathias P. Koljack, Elena Z. Maurukas, Thomas M. Reynolds, Christopher J. Garrett
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Publication number: 20080171901Abstract: A process for converting polyalkylaromatics to monoalkylaromatics, particularly cumene, in the presence of a modified LZ-210 zeolite is disclosed. The process attains greater selectivity, reduced formation of undesired byproducts, and increased activity.Type: ApplicationFiled: January 12, 2007Publication date: July 17, 2008Inventors: Thomas M. Reynolds, Christopher J. Garrett, Deng-Yang Jan, Robert J. Schmidt, Mathias P. Koljack
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Patent number: 6060633Abstract: A supported Lewis acid catalyst system for catalyzing hydrocarbon conversion reactions including cationic polymerization, alkylation, isomerization and cracking reactions is disclosed, wherein the catalyst system comprises an inorganic oxide support having immobilized thereon a least one strong Lewis acid comprising at least one metal salt of a strong Bronsted acid wherein the metal is selected from the group consisting of aluminum, boron gallium, antimony, tantalum, niobium, yttrium, cobalt, nickel, iron, tin, zinc, magnesium barium strontium, calcium, tungsten, molybdenum and the metals of the lanthanide series and wherein the strong Bronsted acid is selected from the group consisting of mineral and organic acids stronger than 100% sulfuric acid.Type: GrantFiled: October 20, 1995Date of Patent: May 9, 2000Inventors: Frank Joung-yei Chen, Christophe Le Deore, Thierry Hamaide, Alain M. Guyot, Ven Pinjala, John Di-Yi Ou
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Patent number: 5773679Abstract: A process for shape-selective hydrocarbon conversion that involves initially contacting a feed stream which includes an alkylaromatic compound and a co-feed of water, under conversion conditions with a catalytic molecular sieve. Preferably, the catalytic molecular sieve has been modified by being ex situ selectivated with a silicon compound. After an effective amount of time, the water co-feed is omitted from the feed stream and the hydrocarbon conversion process is continued. Optionally, the catalytic molecular sieve can also be in situ trim-selectivated.Type: GrantFiled: December 26, 1995Date of Patent: June 30, 1998Assignee: Mobil Oil CorporationInventors: Jeffrey S. Beck, David L. Stern
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Patent number: 5670704Abstract: A method for the highly selective production of 2,6-dimethlynaphthalene by the transmethylation of naphthalene or 2-methylnaphthalene by the use of a specific acid catalyst and a highly regeospecific methylating agent.Type: GrantFiled: June 26, 1990Date of Patent: September 23, 1997Assignee: Amoco CorporationInventors: Gary P. Hagen, Deborah T. Hung
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Patent number: 5210355Abstract: A method for the highly selective production of 2,6-methylethylnaphthalene involving the use of a specific acid catalyst and a highly regeospecific ethylating agent.Type: GrantFiled: June 26, 1990Date of Patent: May 11, 1993Assignee: Amoco CorporationInventors: Gary P. Hagen, Thomas G. Smith
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Patent number: 5177286Abstract: A method for the highly selective production of a p-alkyltoluene or 4,4'-alkylmethylbiphenyl involving the use of a specific Lewis acid catalyst and a highly regeospecific methylating agent.Type: GrantFiled: June 26, 1990Date of Patent: January 5, 1993Assignee: Amoco CorporationInventors: Gary P. Hagen, Deborah T. Hung
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Patent number: 5171917Abstract: A method for the highly selective production of a p-alkylethylbenzene or 4,4'-alkylethylbiphenyl involving the use of a Lewis acid or Bronsted acid alkylation catalyst and a highly regiospecific ethylating agent.Type: GrantFiled: June 26, 1990Date of Patent: December 15, 1992Assignee: Amoco CorporationInventors: Gary P. Hagen, Deborah T. Hung
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Patent number: 4902841Abstract: A method for producing an electrical insulating oil composition composed of benzyltoluene and ditolymethane. The composition is excellent in low-temperature characteristics and contains substantially no chlorine. The method comprises the steps of reacting monocyclic aromatic hydrocarbon with diarylmethane which has been prepared without using a chlorinated hydrocarbon as a starting material, at a temperature of -10.degree. to 550.degree. C. in the presence of a disperoportionation catalyst to prepare a reaction product containing benzyltoluene and ditolylmethane, and recovering benzyltoluene and ditolylmethane from said reaction product by distillation.Type: GrantFiled: March 8, 1988Date of Patent: February 20, 1990Assignee: Nippon Petrochemicals Company, Ltd.Inventors: Shigenobu Kawakami, Keiji Endo, Hideyuki Dohi, Atsushi Sato
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Patent number: 4873386Abstract: A method for the highly selective production of 2,6-diethylnaphthalene involving the use of a specific Lewis acid catalyst and a highly regiospecific ethylating agent.Type: GrantFiled: June 28, 1988Date of Patent: October 10, 1989Assignee: Amoco CorporationInventors: Gary P. Hagen, Thomas E. Nemo
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Patent number: 4835337Abstract: A method for producing efficiently a highly pure 1-(m-ethylphenyl)-1-phenylethane or m-ethylphenylphenylmethane which are used as the starting materials for preparing medicines and other organic compounds. The method comprises the step of reacting a diaryl compound with benzene or alkylbenzene in the presence of an acid catalyst selected from the group consisting of AlCl.sub.3, AlBr.sub.3, HF.BF.sub.3 complex and Y-type zeolites.Type: GrantFiled: March 9, 1988Date of Patent: May 30, 1989Assignee: Nippon Petrochemicals Company, LimitedInventors: Isoo Shimizu, Yasuo Matsumura, Kazumichi Uchida
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Patent number: 4668835Abstract: The alkylation of para-substituted isopropyl benzenes with dipentenes employing an aluminum halide catalyst system produces novel tetracyclic compounds.Type: GrantFiled: October 4, 1985Date of Patent: May 26, 1987Assignee: Phillips Petroleum Co.Inventor: Raymond L. Cobb
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Patent number: 4642730Abstract: An improved electrical insulating oil and oil-filled electrical appliances impregnated therewith. The electrical insulating oil can be produced inexpensively but has excellent electrical characteristics and it comprises a fraction having boiling points in the range of 350.degree. to 450.degree. C. that is prepared by disproportionating diarylalkane or a hydrocarbon mixture mainly containing the same at temperatures in the range of 20.degree. to 500.degree. C. in the presence of a disproportionation catalyst, said diarylalkane having boiling points in the range of 260.degree. to 320.degree. C.Type: GrantFiled: July 30, 1985Date of Patent: February 10, 1987Assignee: Nippon Petrochemicals Company, Ltd.Inventors: Atsushi Sato, Keiji Endo, Shigenobu Kawakami, Eiichi Matsuzaka, Satoshi Narui
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Patent number: 4620921Abstract: Substitution of aluminum or gallium for boron or iron contained in the framework of a high silica content zeolite is effected by treating the zeolite in liquid water in the presence of a compound of aluminum or gallium. Catalyst comprising the treated zeolite is used for conducting acid-catalyzed reactions of organic compounds, e.g. cracking of hydrocarbon compounds.Type: GrantFiled: October 15, 1985Date of Patent: November 4, 1986Assignee: Mobil Oil CorporationInventors: Clarence D. Chang, Joseph N. Miale
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Patent number: 4530756Abstract: A process is provided for conducting organic compound conversion over a catalyst composition comprising a crystalline zeolite having a high initial silica-to-alumina mole ratio, said zeolite being prepared by calcining the zeolite, contacting said calcined zeolite with solid aluminum fluoride, and coverting said aluminum fluoride contacted material to hydrogen form.Type: GrantFiled: February 17, 1984Date of Patent: July 23, 1985Assignee: Mobil Oil CorporationInventors: Clarence D. Chang, Joseph N. Miale
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Patent number: 4454366Abstract: Spent boron trifluoride catalyst is removed from organic liquids by contacting the liquid with polyvinyl alcohol. For example, boron trifluoride catalyst is removed from 1-olefin oligomer product by passing the liquid oligomer through a bed of granular polyvinyl alcohol. The boron trifluoride is recovered from the polyvinyl alcohol and is recycled for use as a catalyst.Type: GrantFiled: December 15, 1982Date of Patent: June 12, 1984Assignee: Gulf Research & Development CompanyInventors: Roger F. Vogel, Ajay M. Madgavkar, Harold E. Swift
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Patent number: 4454364Abstract: Methods are provided for effecting the acid catalyzed transfer of alkyl substituents from a first benzenoid specie to a second benzenoid specie at an improved rate. According to a preferred embodiment, the first and second benzenoid species are blended together with an effective amount of acid catalyst. An amount effective to improve the rate of transalkylation of at least one polynuclear aromatic hydrocarbon is then added to the blend which is maintained at a temperature above room temperature for a period of time sufficient to allow a substantial degree of transalkylation to occur.According to another preferred embodiment, a mixture of benzenoid species such as is found in a fuel or a chemical feedstock is improved through the acid catalyzed transalkylization reaction enhanced by the addition of a polynuclear aromatic hydrocarbon.Type: GrantFiled: September 30, 1982Date of Patent: June 12, 1984Assignee: Mobil Oil CorporationInventors: Malvina Farcasiu, Thomas R. Forbus
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Patent number: 4433197Abstract: Boron trifluoride is removed from coordination compounds contaminating organic liquids by contacting the contaminated liquid with silica. For example, boron trifluoride is removed from a boron trifluoride-n-butanol coordination compound contaminating a 1-olefin oligomer product by passing the contaminated liquid oligomer through a bed of silica.Type: GrantFiled: July 8, 1982Date of Patent: February 21, 1984Assignee: Gulf Research & Development CompanyInventors: Roger F. Vogel, Ajay M. Madgavkar, Harold E. Swift
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Patent number: 4384162Abstract: Boron trifluoride contaminant is removed from organic liquids by contacting the contaminated liquid with polyvinyl alcohol. For example, boron trifluoride catalyst is removed from 1-olefin oligomer product by passing the liquid oligomer through a bed of granular polyvinyl alcohol.Type: GrantFiled: July 8, 1982Date of Patent: May 17, 1983Assignee: Gulf Research & Development CompanyInventors: Roger F. Vogel, Ajay M. Madgavkar, Harold E. Swift
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Patent number: 4365103Abstract: A 1,1-diphenylethane and an aromatic compound such as benzene are reacted in the presence of a Friedel-Craft's catalyst to provide a compound having two 1,1-diaromatic substituted ethane groups, dehydrogenation provides a bis(1-phenylethenyl)aromatic compound.Type: GrantFiled: December 4, 1981Date of Patent: December 21, 1982Assignee: The Dow Chemical CompanyInventors: Kuo Y. Chang, Sterling C. Gatling