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. 27, 2023
Filed:
Sep. 15, 2020
Applicant:
Celanese International Corporation Inc., Irving, TX (US);
Inventor:
Ronald D. Shaver, Houston, TX (US);
Assignee:
CELANESE INTERNATIONAL CORPORATION, Irving, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 51/12 (2006.01); C07C 51/44 (2006.01); C07C 53/08 (2006.01); B01J 19/00 (2006.01);
U.S. Cl.
CPC ...
C07C 51/12 (2013.01); B01J 19/0006 (2013.01); C07C 51/44 (2013.01); B01J 2219/00162 (2013.01); B01J 2219/00164 (2013.01); C07C 53/08 (2013.01);
Abstract
A process for producing acetic acid that involves operating the flash vessel and first column at the lowest possible pressure for a given production rate is described. Low pressures are achieved by operating on a back pressure established by a vapor discharge from an absorbing system. This reduces the pressure differential to allow steady and efficient acetic acid production.