Patents by Inventor Brigitte Beuke

Brigitte Beuke 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 reactivating ammoxidation catalysts
    Patent number: 5378668
    Abstract: Molybdenum/bismuth-based fluid-bed catalysts which are used for the ammoxidation of olefins can be reactivated by addition of a mixed oxide of formulaMo.sub.20 (P, Cr).sub.0.3-2.0 (Bi, Ni, Fe, Co).sub.1.33-4.0 O.sub.xwherein, besides Mo, one element from component group (P, Cr) and one or more metals from component group (Bi, Ni, Fe, Co) are present, andx results from the valency requirements,the mixed oxide being applied to SiO.sub.2 as support.
    Type: Grant
    Filed: April 12, 1993
    Date of Patent: January 3, 1995
    Assignee: EC Erdolchemie GmbH
    Inventors: Brigitte Beuke, Jens Herwig, Ernst-Friedrich Neeb, Nikolaus Paris