Patents by Inventor Roger Snappe

Roger Snappe 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 manufacturing a catalyst comprising rhodium and at least one metal selected from the group consisting of tin, germanium and lead and the catalyst produced by the process
    Patent number: 4514515
    Abstract: A catalyst comprising a carrier, rhodium and at least one element selected from the group consisting of tin, germanium and lead is prepared from a rhodium compound and an alkyl, cycloalkyl or aryl tin, germanium or lead compound.
    Type: Grant
    Filed: April 6, 1984
    Date of Patent: April 30, 1985
    Assignee: Institut Francais du Petrole
    Inventors: Christine Travers, Trinh D. Chan, Roger Snappe, Jean-Paul Bournonville
  • Catalytic process for manufacturing alcohols by hydrogenolysis of carboxylic acid esters
    Patent number: 4456775
    Abstract: Alcohols and particularly fatty alcohols are manufactured by hydrogenolysis of carboxylic esters in the presence of a catalyst comprising a carrier, rhodium and at least one second element selected from the group consisting of tin, germanium and lead. The rhodium content is from 0.1 to 5% b.w. and the content of the second element is from 0.1 to 10% b.w.
    Type: Grant
    Filed: May 24, 1983
    Date of Patent: June 26, 1984
    Assignee: Institut Francais du Petrole
    Inventors: Christine Travers, Chan Trinh Dinh, Roger Snappe, Jean-Paul Bournonville
  • Catalyst and process for manufacturing a ketone by dehydrogenation of a secondary alcohol
    Patent number: 4380673
    Abstract: A secondary alcohol dissolved in a C.sub.12 to C.sub.20 paraffinic hydrocarbon substantially free of aromatics and of sulfur is dehydrogenated to the corresponding ketone at a temperature of 170.degree.-230.degree. C. in the presence of a catalyst of the Raney nickel type containing from 0.1 to 10% by weight of an additional metal consisting of copper, silver, gold, tin, lead, zinc, cadmium, indium or germanium, the ketone being preferably removed, as it is formed, from the reaction medium. A catalyst for use in the present process is provided.
    Type: Grant
    Filed: June 26, 1981
    Date of Patent: April 19, 1983
    Assignee: Institut Francais Du Petrole
    Inventors: Jean-Paul Bournonville, Roger Snappe, Jean Miquel, Germain Martino