Patents by Inventor Andre Hirschauer

Andre Hirschauer 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).

  • Patent number: 6677268
    Abstract: An improved catalyst based on cobalt and/or rhodium dissolved in a non-aqueous ionic solvent which is liquid at a temperature of less than 90° C. More particularly, the catalyst comprises at least one complex of cobalt and/or rhodium co-ordinated with at least one nitrogen-containing ligand and the non-aqueous ionic solvent comprises at least one quaternary ammonium and/or phosphonium cation and at least one inorganic anion.
    Type: Grant
    Filed: July 12, 2002
    Date of Patent: January 13, 2004
    Assignee: Institut Francais du Petrole
    Inventors: Gerhard Hillebrand, Andre Hirschauer, Dominique Commereuc, Helene Olivier-Bourbigou, Lucien Saussine
  • Publication number: 20030055299
    Abstract: An improved catalyst based on cobalt and/or rhodium dissolved in a non-aqueous ionic solvent which is liquid at a temperature of less than 90° C. More particularly, the catalyst comprises at least one complex of cobalt and/or rhodium coordinated with at least one nitrogen-containing ligand and the non-aqueous ionic solvent comprises at least one quaternary ammonium and/or phosphonium cation and at least one inorganic anion.
    Type: Application
    Filed: July 12, 2002
    Publication date: March 20, 2003
    Applicant: Institut Francais du Petrole
    Inventors: Gerhard Hillebrand, Andre Hirschauer, Dominique Commereuc, Helene Olivier-Bourbigou, Lucien Saussine
  • Patent number: 6469216
    Abstract: In an improved process for hydroformylation of olefinically unsaturated compounds using a catalyst based on cobalt and/or rhodium employed in a two-phase medium, a catalyst based on cobalt and/or rhodium is used dissolved in a non-aqueous ionic solvent which is liquid at a temperature of less than 90° C., in which the aldehydes formed are slightly soluble or insoluble. More particularly, the catalyst comprises at least one complex of cobalt and/or rhodium co-ordinated with at least one nitrogen-containing ligand and the non-aqueous ionic solvent comprises at least one quaternary ammonium and/or phosphonium cation and at least one inorganic anion. At the end of the reaction, the organic phase is generally separated and the ionic non-aqueous solvent phase containing the catalyst can be re-used.
    Type: Grant
    Filed: December 7, 2000
    Date of Patent: October 22, 2002
    Assignee: Institut Francais du Petrole
    Inventors: Gerhard Hillebrand, André Hirschauer, Dominique Commereuc, Hélène Olivier-Bourbigou, Lucien Saussine
  • Publication number: 20010039363
    Abstract: In an improved process for hydroformylation of olefinically unsaturated compounds using a catalyst based on cobalt and/or rhodium employed in a two-phase medium, a catalyst based on cobalt and/or rhodium is used dissolved in a non-aqueous ionic solvent which is liquid at a temperature of less than 90° C., in which the aldehydes formed are slightly soluble or insoluble. More particularly, the catalyst comprises at least one complex of cobalt and/or rhodium co-ordinated with at least one nitrogen-containing ligand and the non-aqueous ionic solvent comprises at least one quaternary ammonium and/or phosphonium cation and at least one inorganic anion. At the end of the reaction, the organic phase is generally separated and the ionic non-aqueous solvent phase containing the catalyst can be re-used.
    Type: Application
    Filed: December 7, 2000
    Publication date: November 8, 2001
    Inventors: Gerhard Hillebrand, Andre Hirschauer, Dominique Commereuc, Helene Olivier-Bourbigou, Lucien Saussine
  • Patent number: 6235959
    Abstract: The invention concerns a process for alkylating isoparaffins by olefins using a novel catalyst, the olefin preferably being a low reactivity olefin. The catalyst is a composition resulting from a mixture of at least aluminum halide, at least one quaternary ammonium halide and/or at least one amine hydrohalide and at least one group IVB metal compound, preferably a group IVB metal halide.
    Type: Grant
    Filed: August 23, 1999
    Date of Patent: May 22, 2001
    Assignee: Institut Francais du Petrole
    Inventors: André Hirschauer, Hélène Olivier-Bourbigou
  • Patent number: 6028024
    Abstract: The invention concerns a catalytic composition resulting from a mixture of at least one aluminium halide, at least one quaternary ammonium halide and/or at least one amine hydrohalide and at least one group IVB metal compound, preferably a group IVB metal halide. The invention also concerns a process for alkylating isoparaffins by olefins using that composition, the olefin preferably being a low reactivity olefin.
    Type: Grant
    Filed: April 7, 1998
    Date of Patent: February 22, 2000
    Assignee: Institut Francais du Petrole
    Inventors: Andre Hirschauer, Helene Olivier-Bourbigou
  • Patent number: 5892124
    Abstract: Improved process for implementing the Diels-Alder reaction that consists in using reagents in the presence of at least one liquid salt of general formula Q.sup.+ A.sup.-, in which Q.sup.+ represents a quaternary ammonium and/or phosphonium and A.sup.- represents an anion and optionally at least one Lewis acid. The anion is preferably selected from the group that is formed by tetrafluoroborate, hexafluorophosphate, hexafluoroantimonate, hexafluoroarsenate, perfluoroalkylsulfonate, fluorosulfonate or else dichlorocuprate, tetrachloroborate, tetrachloroaluminate, and trichlorozincate. At the end of the reaction, the organic phase is separated, and the polar phase is reused.
    Type: Grant
    Filed: December 29, 1997
    Date of Patent: April 6, 1999
    Assignee: Institut Fran.cedilla.ais du Petrole
    Inventors: Helene Olivier, Andre Hirschauer
  • Patent number: 5750455
    Abstract: The invention concerns a catalytic composition resulting from mixing at least one aluminum halide, at least one quaternary ammonium halide and/or at least one amine halohydrate and at least one cuprous compound, preferable a halide. The invention also concerns a process for the alkylation of isoparaffins by olefins with that composition.
    Type: Grant
    Filed: October 24, 1995
    Date of Patent: May 12, 1998
    Assignee: Institut Francais Du Petrole
    Inventors: Yves Chauvin, Andre Hirschauer, Helene Olivier
  • Patent number: 5693585
    Abstract: A catalyst containing a porous organic or mineral support and at least one active phase having at least one aluminum halide, at least one compound selected for quaternary ammonium halides and amine hydrohalides, and at least one cuprous compound, the support having been impregnated with the active phase, the catalyst essentially constituted by particles with an average diameter in the range 0.1 .mu.m to 150 .mu.m, and the support, before impregnation with the active phase, has a total pore volume in the range 0.1 cm.sup.3 /g and 6 cm.sup.3 /g.
    Type: Grant
    Filed: June 17, 1996
    Date of Patent: December 2, 1997
    Assignee: Institut Francais du Petrole
    Inventors: Eric Benazzi, Yves Chauvin, Andre Hirschauer, Nathalie Ferrer, Helene Olivier, Jean-Yves Bernhard
  • Patent number: 5104840
    Abstract: A non-aqueous liquid composition with an ionic character resulting from the contacting of at least one alkylaluminum dihalide with at least one quaternary ammonium halide and/or at least one quaternary phosphonium halide, said composition being liquid below 80.degree. C., for example, between -70.degree. and +40.degree. C., is useful as a solvent of catalysts for the dimerization, codimerization and oligomerization of olefins.
    Type: Grant
    Filed: March 20, 1991
    Date of Patent: April 14, 1992
    Assignee: Institut Francais du Petrole
    Inventors: Yves Chauvin, Dominique Commereuc, Isabelle Guibard, Andre Hirschauer, Helene Olivier, Lucien Saussine
  • Patent number: 4533500
    Abstract: N-acyliminodiacetic acids are manufactured by reacting formaldehyde or a formaldehyde generator compound with a N-unsubstituted amide or a generator thereof and with carbon monoxide in contact with a carbonylation catalyst, for example, a cobalt compound, the ratio of the aldehyde groups to the amide groups being at least 2:1. The formaldehyde generator can be a polymeric form of formaldehyde and the amide generator can be a carboxylic ester, acid or anhydride.
    Type: Grant
    Filed: March 17, 1983
    Date of Patent: August 6, 1985
    Assignees: Institut Francais du Petrole, Societe Nationale Elf-Aquitaine (Production)
    Inventors: Yves Chauvin, Dominique Commereuc, Andre Hirschauer, Dominique Reffet, Robert Stern
  • Patent number: 4264515
    Abstract: A N-acyl .alpha.-amino acid is manufactured by reacting an unsaturated vegetable oil or a C.sub.8 -C.sub.30 mono-olefinic compound with an amide, carbon monoxide and hydrogen, in the presence of a cobalt catalyst. The process is operated in one step, providing for an increased selectivity as compared with a two-step process.
    Type: Grant
    Filed: December 14, 1979
    Date of Patent: April 28, 1981
    Assignee: Institut Francais du Petrole
    Inventors: Robert Stern, Andre Hirschauer, Dominique Commereuc, Yves Chauvin
  • Patent number: 4038295
    Abstract: Highly unsaturated oils of vegetable or animal origin are selectively hydenated to less highly unsaturated oils using a catalytic composition obtained by dissolving a compound of a metal selected from the IB, IV B to VII B or VIII groups in an unsaturated oil and then adding thereto an organic derivative or hydride of a metal from groups I A, II A, II B or III A, in the absence of a stabilizing solvent.
    Type: Grant
    Filed: January 29, 1975
    Date of Patent: July 26, 1977
    Assignee: Institut Francais du Petrole et Institut des Corps Gras (ITERG)
    Inventors: Robert Stern, Eugene Ucciani, Andre Hirschauer, Georges Cecchi