Patents by Inventor Peter Stephen Morford

Peter Stephen Morford 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).

  • Purification of propylene oxide using ethylene glycol monomethyl ether as an extractive distillation agent
    Patent number: 5958192
    Abstract: An extractive distillation agent used for the distillation of propylene oxide contaminated with water, acetone, acetaldehyde and methanol and consisting essentially of ethylene glycol monomethyl ether is fed to an extractive distillation column within about 2 to about 15 stages from the top of the tower to obtain an overhead distillate fraction consisting of essentially anhydrous propylene oxide contaminated with reduced quantities of acetone, acetaldehyde and methanol, and a heavier bottoms distillation fraction containing substantially all of the ethylene glycol monomethyl ether, water and acetone and some of the methanol introduced into the distillation column.
    Type: Grant
    Filed: August 27, 1997
    Date of Patent: September 28, 1999
    Assignee: Huntsman Specialty Chemicals Corporation
    Inventor: Peter Stephen Morford