Patents by Inventor Emmanuel Cadot

Emmanuel Cadot 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).

  • Synthesis of methyl mercaptan from dimethyl disulphide
    Patent number: 5493058
    Abstract: The invention relates to the manufacture of methyl mercaptan by catalytic hydrogenation of dimethyl disulphide on a catalyst based on sulphide(s) of at least one transition metal.The selectivity with respect to methyl mercaptan is considerably improved by working in the presence of water and/or hydrogen sulphide.
    Type: Grant
    Filed: October 12, 1994
    Date of Patent: February 20, 1996
    Assignee: Elf Aquitaine Production
    Inventors: Emmanuel Cadot, Michel Lacroix, Annie Commarieu, Emmanuel Arretz
  • Catalytic system and its application to the oxydehydrogenation of saturated carboxylic acids and the oxidation of aldehydes to acids
    Patent number: 5330954
    Abstract: A catalytic system based on oxygen, vanadium, phosphorus, and molybdenum corresponding to the formula H.sub.m X.sub.n Me.sub.p PMo.sub.12-x V.sub.x O.sub.40, wherein X represents the VO.sup.2+ cation with 0<n.ltoreq.2, H represents protons with 0.ltoreq.m<4, 0.ltoreq.x.ltoreq.3, Me is a metal ion, especially an ion of a transition metal, with 0.ltoreq.p.ltoreq.t, t depending on the charge of the corresponding ion, is useful for the oxydehydrogenation of saturated carboxylic acids to .alpha.,.beta.-unsaturated acids and for oxidizing aldehydes to acids.
    Type: Grant
    Filed: September 3, 1992
    Date of Patent: July 19, 1994
    Assignee: Elf Atochem, S.A.
    Inventors: Emmanuel Cadot, Franck Daubrege, Gilbert Herve, Andre Teze