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:
Jun. 06, 2017
Filed:
Jan. 27, 2015
Applicant:
Celanese International Corporation, Irving, TX (US);
Inventors:
Heiko Weiner, Pasadena, TX (US);
Zhenhou Zhou, Houston, TX (US);
Assignee:
CELANESE INTERNATIONAL CORPORATION, Irving, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 29/149 (2006.01); B01J 37/02 (2006.01); B01J 23/648 (2006.01); B01J 23/652 (2006.01); B01J 23/89 (2006.01); B01J 35/02 (2006.01); B01J 35/10 (2006.01); B01J 35/00 (2006.01);
U.S. Cl.
CPC ...
C07C 29/149 (2013.01); B01J 23/6482 (2013.01); B01J 23/6522 (2013.01); B01J 23/89 (2013.01); B01J 23/8933 (2013.01); B01J 23/8966 (2013.01); B01J 35/008 (2013.01); B01J 37/0244 (2013.01); B01J 35/0026 (2013.01); B01J 35/0066 (2013.01); B01J 35/023 (2013.01); B01J 35/026 (2013.01); B01J 35/1009 (2013.01); B01J 35/1014 (2013.01); B01J 35/1019 (2013.01); B01J 35/1023 (2013.01); B01J 35/1042 (2013.01); B01J 35/1047 (2013.01); B01J 35/1061 (2013.01); B01J 2523/00 (2013.01);
Abstract
The present invention relates to a solid catalyst for producing ethanol from acetic acid, ethyl acetate, or mixtures thereof comprising a core region comprising a Group IIA metal and a surface region surrounding the core region and comprising one or more main metals. The total loading of the main metals in the catalyst is greater than or equal to 1 wt. %. Also more than 85% of main metals are located in the surface region, based on the total loading of the main metals in the catalyst. The surface region may comprise two or more layers.