Patents by Inventor Paul L. Fetzer

Paul L. Fetzer 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 purification of 1,2-dichloroethane
    Patent number: 4087474
    Abstract: A method for the disposal of 2-chloroethanol by conversion to readily biodegradable ethylene glycol comprising;(1) extracting 2-chloroethanol into a neutral or acidic aqueous solution;(2) adjusting the pH of the solution to at least 10 and heating to a temperature of from about 25.degree. C to about 100.degree. C to form ethylene oxide and ethylene glycol,(3) stripping the basic solution of (2) to obtain a basic aqueous phase and a distillate, the basic aqueous phase being disposed, and(4) condensing and hydrolyzing the distillate and(5) stripping said hydrolysate, recovering the volatile organic portion, and(6) disposing of ethylene glycol in aqueous solution.
    Type: Grant
    Filed: June 6, 1977
    Date of Patent: May 2, 1978
    Assignee: Continental Oil Company
    Inventors: Ronald J. Convers, Paul L. Fetzer, Homer L. Hackett, Charles M. Starks