Patents by Inventor Serge Melloul

Serge Melloul 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).

  • Process for producing methyl acetate from methyl formate
    Patent number: 5202468
    Abstract: The object of the invention is a process for the preparation of methyl acetate starting from the methyl formate, characterized in that methyl formate is converted at a temperature of 170.degree. to 220.degree. C. in the presence of:a) a catalyst based on rhodium,b) an iodine-containing promoter selected from among the alkaline, alkaline earth, phosphonium or ammonium iodides and the mixtures of covalent compounds of iodine supplemented with a phosphine or a tertiary amine.c) a solvent selected from a cyclic N-alkyl amide.
    Type: Grant
    Filed: June 9, 1992
    Date of Patent: April 13, 1993
    Assignee: Sollac
    Inventors: Jean A. Cordier, Francis P. Petit, Yves Castanet, Serge Melloul, Andre Mortreux
  • Process for the preparation of aldehydes
    Patent number: 4892976
    Abstract: The process for the preparation of an aldehyde of formula R--CHO in which R is an alkyl group of C.sub.1 -C.sub.7 comprises according to the invention the reaction on an alkyl formate of formula H--COOR in which R has the meaning given above, of a gas constituted mainly by CO, in the presence of(a) a catalyst based on a metal chosen from among Rh, Ru, Ir, mixtures of them or a mixture of Rh and/or Ru and/or Ir with Co, Ni or Fe,(b) a promoter chosen from among iodides and mixtures of covalent compounds of iodine and a phosphine or a tertiary amine,(c) a solvent consisting of a cyclic N-alkyl amide.
    Type: Grant
    Filed: July 15, 1988
    Date of Patent: January 9, 1990
    Assignee: Sollac
    Inventors: Jean Cordier, Bernard Dussart, Francis Petit, Yves Castanet, Serge Melloul, Andre Mortreux