The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 15, 1997
Filed:
Jun. 03, 1996
Applicant:
Inventors:
William A Smith, Round Rock, TX (US);
Mark A Mueller, Austin, TX (US);
Assignee:
Texaco Chemical, Inc., White Plains, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; C07D / ;
U.S. Cl.
CPC ...
203 63 ; 203 14 ; 203 78 ; 203 84 ; 549541 ;
Abstract
An extractive distillation agent of 1-propanol is fed to an extractive distillation column used for the distillation of propylene oxide contaminated with water, acetone and methanol to obtain an overhead distillate fraction of essentially anhydrous propylene oxide contaminated with reduced quantities of acetone and methanol, and a heavier bottoms distillation fraction containing substantially all of the 1-propanol, water and acetone, some of the methanol and heavier by-products of propylene oxide formed in the distillation column.