Patents by Inventor Azael T. Flores

Azael T. Flores 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).

  • Two step gold addition method for preparing a vinyl acetate catalyst
    Patent number: 5691267
    Abstract: A method for preparing a catalyst wherein a catalytic carrier is impregnated with water-soluble palladium and gold compounds followed by fixing and then reducing the fixed palladium and gold compounds to palladium and gold metal followed by impregnating the carrier with a second amount of a water-soluble gold compound. The second amount of gold compound is fixed then reduced to gold metal. The catalyst then is impregnated with an alkali metal acetate such as potassium acetate. The catalyst can be employed to synthesize unsaturated esters such as vinyl acetate.
    Type: Grant
    Filed: August 13, 1996
    Date of Patent: November 25, 1997
    Assignee: Hoechst Celanese Corporation
    Inventors: Ioan Nicolau, Azael T. Flores