Patents by Inventor Willi Dafinger

Willi Dafinger 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 the hydrogenation of chloromethanes
    Patent number: 5233106
    Abstract: A process is provided for the hydrogenation of chloromethanes of the formula CH.sub.n Cl.sub.m, where n=0 to 3 and m=4-n, with hydrogen at a temperature of 150.degree. to 250.degree. C. and under an absolute pressure of 1 to 10 bar, by means of a supported catalyst comprising an activated charcoal support with a BET surface area of more than 500 m.sup.2 /g, 0.5 to 20% by weight of copper in elemental or chemically bonded form and 0.01 to 1.0% by weight of rhodium or palladium in elemental or chemically bonded form, and with 0.1 to 10.0% by weight of a water-soluble phosphonium halide.
    Type: Grant
    Filed: July 9, 1992
    Date of Patent: August 3, 1993
    Assignee: Wacker-Chemie GmbH
    Inventors: Willi Dafinger, Ludwig Schmidhammer