Resulting Side-chain Has Less Than Four C Atoms Patents (Class 585/453)
  • Patent number: 4914251
    Abstract: The present invention concerns a catalyst for alkylation of alkyl aromatics with olefins, i.e. alkylating toluene, a procedure for the production of the catalyst, and a procedure for carrying out the alkylating of the toluene. The catalyst system contains sodium oxide (Na.sub.2 O) on a potassium carbonate (K.sub.2 CO.sub.3) carrier, preferably at about 10 to 70%.
    Type: Grant
    Filed: February 10, 1989
    Date of Patent: April 3, 1990
    Assignee: Neste OY
    Inventors: Pekka Knuuttila, Aila Ali-Hokka
  • Patent number: 4891448
    Abstract: Polycyclic aromatic compounds, such as biphenyl, are alkylated with an alkylating agent, such as propylene, in the presence of an acidic mordenite zeolite catalyst under conditions sufficient to produce a mixture of substituted polycyclic aromatic compounds enriched in the para alkylated isomers, such as p,p'-di(isopropyl)biphenyl. The novel acidic mordenite catalyst is characterized by its silica/alumina molar ratio, its porosity, and a Symmetry Index. The p,p'-disubstituted isomers of polycyclic aromatic compounds are useful as monomers in the preparation of thermotropic, liquid crystal polymers.
    Type: Grant
    Filed: November 23, 1987
    Date of Patent: January 2, 1990
    Assignee: The Dow Chemical Company
    Inventors: Juan Garces, Joseph J. Maj, G. John Lee, Stephen C. Rocke
  • Patent number: 4709109
    Abstract: Alkenylaromatics I ##STR1## where R.sup.1 is C.sub.1 -C.sub.6 -alkyl, R.sup.2 is H or C.sub.1 -C.sub.10 -alkyl and Ar is aryl, are prepared by reacting a vinylaromatic II ##STR2## with an .alpha.-olefin IIIH.sub.2 C.dbd.CHR.sup.2 IIIin the presence of a nickel-containing catalyst system consisting of (a) a nickel(II) salt of a carboxylic acid, of an alcoholate or of a phenolate, (b) a phosphite or phosphine and (c) an organoaluminum compound V ##STR3## where R.sup.6 is C.sub.1 -C.sub.12 -alkyl, X is halogen and n is 1 or 2, or a mixture of compounds V.
    Type: Grant
    Filed: October 10, 1986
    Date of Patent: November 24, 1987
    Assignee: BASF Aktiengesellschaft
    Inventors: Karin Sperling, Martin Fischer
  • Patent number: 4620921
    Abstract: 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: Grant
    Filed: October 15, 1985
    Date of Patent: November 4, 1986
    Assignee: Mobil Oil Corporation
    Inventors: Clarence D. Chang, Joseph N. Miale
  • Patent number: 4620056
    Abstract: A method for producing an aromatic hydrocarbon easily and safely without the use of carrier-supported catalyst and is characterized in that an unsaturated compound having a double bond or bonds that are conjugated with the benzene ring is allowed to coexist in the process to alkylate a substituted aromatic hydrocarbon with olefins in the presence of 5 mM or more of metallic sodium and potassium compound to provide 3 mM or more of potassium ions relative to 1 mole of the substituted aromatic hydrocarbon, said substituted aromatic hydrocarbon having at least one alkyl group or alkylene group which has at least one hydrogen atom in the .alpha.-position relative to the aromatic ring of said substituted aromatic hydrocarbon.
    Type: Grant
    Filed: August 28, 1985
    Date of Patent: October 28, 1986
    Assignee: Nippon Petrochemicals Co., Ltd.
    Inventors: Isoo Shimizu, Hideki Nomura, Kazumichi Uchida, Hitoshi Mitsuyuki
  • Patent number: 4559131
    Abstract: A process is provided for using a reactivated catalyst composition comprising a crystalline zeolite material having a silicon/aluminum atomic ratio of at least about 3.5, said catalyst composition having been deactivated by contact with steam. The reactivation method involves the necessary steps of contacting said steam-deactivated catalyst composition with a metal salt solution, followed by contacting said metal salt solution contacted catalyst composition with an aqueous ammonium ion-containing solution.
    Type: Grant
    Filed: July 16, 1984
    Date of Patent: December 17, 1985
    Assignee: Mobil Oil Corporation
    Inventor: Joseph N. Miale
  • Patent number: 4530756
    Abstract: 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: Grant
    Filed: February 17, 1984
    Date of Patent: July 23, 1985
    Assignee: Mobil Oil Corporation
    Inventors: Clarence D. Chang, Joseph N. Miale
  • Patent number: 4371729
    Abstract: The invention provides an efficient method for the preparation of ethylbenzene by the reaction of toluene and methyl alcohol. By virtue of the specific active ingredients contained in the catalyst, the catalyst is free from the problem of rapid decrease of the catalytic activity owing to coking so that the inventive method is very satisfactory as an industrial process for the preparation of ethylbenzene.
    Type: Grant
    Filed: January 6, 1982
    Date of Patent: February 1, 1983
    Assignee: Agency of Industrial Science and Technology
    Inventor: Kazuo Shimizu
  • Patent number: 4268703
    Abstract: Toluene dehydrocoupled products are produced by heating toluene in the vapor phase with an inorganic metal/oxygen composition which functions as an oxygen carrier and has the empirical formula:M.sub.a.sup.1 M.sub.b.sup.2 O.sub.xwhere M.sup.1 is lead and M.sup.2 is at least one element selected from thallium and Group 2a of the Periodic Table of the Elements, and mixtures thereof, and wherein a is 1, b is 0.01 to 10, and x is a number taken to satisfy the average valences of M.sup.1 and M.sup.2 in the oxidation states in which they exist in the composition. Alternatively, the same inorganic metal/oxygen composition can be employed as a catalyst or as a combination catalyst/oxygen carrier for the dehydrocoupling reaction when oxygen or an oxygen-containing gas is heated with the toluene.
    Type: Grant
    Filed: December 10, 1979
    Date of Patent: May 19, 1981
    Assignee: Monsanto Company
    Inventors: Alex N. Williamson, Samuel J. Tremont
  • Patent number: 4255602
    Abstract: Toluene dehydrocoupled products are produced by heating toluene in the vapor phase with an inorganic metal/oxygen composition which functions as an oxygen carrier and has the empirical formula:M.sub.a.sup.1 M.sub.b.sup.2 O.sub.xwhere M.sup.1 is cobalt and M.sup.2 is lanthanum, and wherein a is 1, b is 1 to 10, and x is a number taken to satisfy the average valences of M.sup.1 and M.sup.2 in the oxidation states in which they exist in the composition. Alternatively, the same inorganic metal/oxygen composition can be employed as a catalyst or as a combination catalyst/oxygen carrier for the dehydrocoupling reaction when oxygen or an oxygen-containing gas is heated with the toluene.
    Type: Grant
    Filed: December 10, 1979
    Date of Patent: March 10, 1981
    Assignee: Monsanto Company
    Inventors: Samuel J. Tremont, Alex N. Williamson
  • Patent number: 4179580
    Abstract: A process for increasing the reaction rate of condensation reactions which occur between non-conjugated non-aromatic olefinically unsaturated hydrocarbons and active hydrogen-containing organic compounds in the presence of alkali metal comprising carrying out the reaction in the presence of titanium metal.
    Type: Grant
    Filed: May 11, 1978
    Date of Patent: December 18, 1979
    Assignee: Phillips Petroleum Company
    Inventor: Raymond L. Cobb
  • Patent number: 4179472
    Abstract: A process whereby alkyl substituted aromatics are alkylated with a monoolefin in the presence of an alkali metal catalyst and a promoter composition selected from the group consisting of (1) biphenyl and a conjugated diene, (2) biphenyl, a conjugated diene, and a tertiary amine, and (3) naphthalene and a tertiary amine.
    Type: Grant
    Filed: December 14, 1978
    Date of Patent: December 18, 1979
    Assignee: Phillips Petroleum Company
    Inventor: Raymond L. Cobb