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:
Mar. 31, 2015
Filed:
Jan. 14, 2014
Applicant:
Celanese International Corporation, Irving, TX (US);
Inventors:
Heiko Weiner, Pasadena, TX (US);
Radmila Wollrab, Pasadena, TX (US);
Victor J. Johnston, Houston, TX (US);
John L. Potts, Angleton, TX (US);
Assignee:
Celanese International Corporation, Irving, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 29/149 (2006.01); B01J 23/36 (2006.01); B01J 23/00 (2006.01); B01J 23/62 (2006.01); B01J 23/656 (2006.01); B01J 37/02 (2006.01); B01J 37/08 (2006.01); C07C 1/24 (2006.01); B01J 23/652 (2006.01); B01J 23/889 (2006.01); B01J 23/89 (2006.01); B01J 21/16 (2006.01);
U.S. Cl.
CPC ...
B01J 23/36 (2013.01); B01J 21/16 (2013.01); B01J 23/002 (2013.01); B01J 23/626 (2013.01); B01J 23/6567 (2013.01); B01J 37/0201 (2013.01); B01J 37/0207 (2013.01); B01J 37/08 (2013.01); B01J 2523/00 (2013.01); C07C 1/24 (2013.01); C07C 29/149 (2013.01); B01J 23/6522 (2013.01); B01J 23/6525 (2013.01); B01J 23/6527 (2013.01); B01J 23/8896 (2013.01); B01J 23/8898 (2013.01); B01J 23/8913 (2013.01); B01J 23/8946 (2013.01); B01J 23/8966 (2013.01); B01J 23/8986 (2013.01); B01J 23/8993 (2013.01); Y02E 50/18 (2013.01);
Abstract
A process for selective formation of ethanol from acetic acid includes contacting a feed stream containing acetic acid and hydrogen at an elevated temperature with catalyst comprising platinum and tin on a high surface area silica promoted with calcium metasilicate. Selectivities to ethanol of over 85% are achieved at 280° C. with catalyst life in the hundreds of hours.