Patents by Inventor Susan L. Dio

Susan L. Dio 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).

  • Method for eliminating nitriding during acrylonitrile production
    Patent number: 5256810
    Abstract: An improved process for substantially eliminating, preferably completely eliminating of nitride formation on feed conduits for fluid bed catalyst reactors used in the manufacture of unsaturated nitriles from corresponding olefins, NH.sub.3 and oxygen comprising maintaining the temperature of the ammonia inside the conduit below its dissociation temperature and/or maintaining the temperature of the inside surface of the conduit below the temperature at which any monoatomic nitrogen can react with the conduit to form a nitride.
    Type: Grant
    Filed: October 14, 1992
    Date of Patent: October 26, 1993
    Assignee: The Standard Oil Company
    Inventors: Steven J. Rowe, John T. Shultz, Robert J. Mack, Susan L. Dio