Patents by Inventor Lawrence L. Murrel

Lawrence L. Murrel 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).

  • Preparation and use of catalysts comprising a mixture of tungsten oxide and silica supported on a boehmite-like surface
    Patent number: 4891127
    Abstract: Useful cracking catalysts and catalyst supports comprising a mixture of tungsten oxide and silica supported on a boehmite-like surface which, in turn, is supported on alumina are prepared by forming a composite of particles of (a) tungsten oxide, (b) silica and (c) boehmite and subjecting the composite to steaming at a temperature of at least about 500.degree. C. During the steaming, the tungsten oxide and silica react with the surface of the boehmite as the boehmite converts to alumina.
    Type: Grant
    Filed: February 15, 1989
    Date of Patent: January 2, 1990
    Assignee: Exxon Research and Engineering Company
    Inventors: Lawrence L. Murrel, Nicholas C. Dispenziere, Jr.