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:
Oct. 06, 2015
Filed:
Apr. 26, 2012
Applicants:
Zhenhua Zhou, Houston, TX (US);
Victor J. Johnston, Houston, TX (US);
David Lee, Seabrook, TX (US);
Heiko Weiner, Pasadena, TX (US);
Inventors:
Zhenhua Zhou, Houston, TX (US);
Victor J. Johnston, Houston, TX (US);
David Lee, Seabrook, TX (US);
Heiko Weiner, Pasadena, TX (US);
Assignee:
Celanese International Corporation, Irving, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 29/149 (2006.01); C07C 67/08 (2006.01); C07C 29/80 (2006.01);
U.S. Cl.
CPC ...
C07C 29/149 (2013.01); C07C 29/80 (2013.01); C07C 67/08 (2013.01);
Abstract
Purifying and/or recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid. Separation and purification processes of crude ethanol mixture are employed to allow recovery of ethanol and remove impurities. In addition, the process involves the esterification of acetic acid in a column used for recovering the ethanol.