Patents by Inventor James E. Deitzler

James E. Deitzler 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).

  • Process for the hydrolysis of dialkyl carbonates
    Patent number: 4663477
    Abstract: A process is provided for the utilization of dialkyl carbonates formed as by-products in a continuous process for the synthesis of oxalic acid esters from nitrous acid esters and carbon monoxide and wherein the esters are subsequently used as intermediates in the production of commercially useful products, such as ethylene glycol. The process comprises contacting a mixture containing the by-product comprised of a dialkyl carbonate with an aqueous solution of a metal carbonate under hydrolyzing conditions whereby the dialkyl carbonate is converted to the corresponding alkanol and the metal carbonate is converted to metal bicarbonate. Upon distillation of the alkanol from the mixture the bicarbonate is converted back to the metal carbonate which can then be recycled from the bottoms to the hydrolyzing zone for use in further hydrolysis of by-product. The alkanol is recycled for use in the continuous process.
    Type: Grant
    Filed: March 27, 1986
    Date of Patent: May 5, 1987
    Assignee: Union Carbide Corporation
    Inventors: John W. Crandall, James E. Deitzler, Louis A. Kapicak, Fedor Poppelsdorf
  • Vapor state formation of diesters of oxalic acid
    Patent number: 4629806
    Abstract: A continuous vapor state process for the preparation of diesters of oxalic acid from a nitrogen oxide, an alcohol and carbon monoxide.
    Type: Grant
    Filed: March 12, 1981
    Date of Patent: December 16, 1986
    Assignee: Union Carbide Corporation
    Inventors: Thomas C. Cleveland, James E. Deitzler, Arthur R. Doumaux, Jr., Joseph P. Henry, John M. Hurt, Louis A. Kapicak, Bernard C. Ream