Patents by Inventor Paul T. Wachtendorf

Paul T. Wachtendorf 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).

  • Acrylonitrile recovery process
    Patent number: 5629444
    Abstract: A process for the recovery of acrylonitrile or methacrylonitrile obtained from the reactor effluent of an ammoxidation reaction of propylene or isobutylene comprising passing the reactor effluent through an absorber column, a first decanter, recovery column, a second decanter and stripper column wherein the improvement comprises maintaining inside temperature of the first and second decanter at between about 32.degree. F. to 75.degree. F.
    Type: Grant
    Filed: June 6, 1996
    Date of Patent: May 13, 1997
    Assignee: The Standard Oil Company
    Inventors: James S. Gibson, Jeffrey E. Rinker, Paul T. Wachtendorf, Sanjay P. Godbole