Patents by Inventor Hugh M. Thompson, Jr.

Hugh M. Thompson, Jr. 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).

  • Recovery of acetyl values from ethylidene diacetate
    Patent number: 5175362
    Abstract: Disclosed is a process for the recovery of acetyl values from an ethylidene diacetate stream obtained from an acetic anhydride production system. The process comprises hydrolyzing ethylidene diacetate in a liquid phase, hydrolysis zone containing a non-volatile, acidic catalyst and maintained under boiling conditions to obtain a mixture of acetaldehyde, acetic acid and water and then oxidizing the mixture in a liquid phase, oxidation zone containing a cobalt oxidation catalyst to obtain a mixture of acetic acid and water. The process optionally includes a means for reducing substantially the concentration of iodine in the EDA used in the process.
    Type: Grant
    Filed: May 29, 1991
    Date of Patent: December 29, 1992
    Assignee: Eastman Kodak Company
    Inventors: Carl F. Fillers, Eric D. Middlemas, Hugh M. Thompson, Jr., Jerry A. Barron, William T. Brown