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. 07, 2022
Filed:
Sep. 21, 2017
Applicant:
Johnson Matthey Davy Technologies Limited, London, GB;
Inventors:
Michael Bainbridge, Durham, GB;
Javad Tabatabaei, Durham, GB;
Assignee:
Johnson Matthey Davy Technologies Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 27/28 (2006.01); B01J 38/02 (2006.01); B01J 38/06 (2006.01); B01J 38/16 (2006.01); B01J 27/198 (2006.01); C07C 51/353 (2006.01);
U.S. Cl.
CPC ...
B01J 27/285 (2013.01); B01J 27/198 (2013.01); B01J 38/02 (2013.01); B01J 38/06 (2013.01); B01J 38/16 (2013.01); C07C 51/353 (2013.01); Y02P 20/584 (2015.11);
Abstract
A process for regenerating a deactivated vanadium-titanium-phosphorous catalyst which has been used in the production of unsaturated carboxylic acid is disclosed. The process comprises contacting the deactivated vanadium-titanium-phosphorous catalyst with a regeneration stream comprising steam as a regeneration agent at a temperature which is the same or similar to that used in the production of the unsaturated carboxylic acid.