Patents by Inventor Peter A. Riedl

Peter A. Riedl 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).

  • Phenol and cyclohexanone manufacture
    Patent number: 3959381
    Abstract: Method of producing phenol and cyclohexanone in enhanced yields consisting essentially of contacting cyclohexylbenzene, preferably in the presence of a member selected from the group consisting of cumene and cumene hydroperoxide, with an oxygen containing gas to form 1-phenylcyclohexyl hydroperoxide containing intermediate product, optionally purifying said intermediate, contacting the 1-phenylcyclohexyl hydroperoxide intermediate product with an acid cleavage catalyst in the presence of an alkanone of from 3 to 6 carbons and recovering the formed phenol and cyclohexanone.
    Type: Grant
    Filed: October 22, 1970
    Date of Patent: May 25, 1976
    Assignee: Texaco Inc.
    Inventors: Alfred Arkell, Peter A. Riedl, Edwin R. Kerr