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. 04, 2022
Filed:
Jan. 17, 2019
Applicant:
Arkema France, Colombes, FR;
Inventors:
Anne Pigamo, Francheville, FR;
Laurent Wendlinger, Soucieu en Jarrest, FR;
Dominique Duer-Bert, Charly, FR;
Assignee:
ARKEMA FRANCE, Colombes, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 17/20 (2006.01); B01J 12/00 (2006.01); C07C 21/18 (2006.01);
U.S. Cl.
CPC ...
C07C 17/206 (2013.01); B01J 12/007 (2013.01); C07C 21/18 (2013.01); B01J 2219/0004 (2013.01); B01J 2219/00038 (2013.01); Y02P 20/582 (2015.11); Y02P 20/584 (2015.11);
Abstract
A process for manufacturing tetrafluoropropene, including, alternately: at least one step of reacting a chlorinated compound with hydrofluoric acid in the gas phase, in the presence of a fluorination catalyst, the proportion of oxygen optionally present being less than 0.05 mol. % relative to the chlorinated compound; a step of regenerating the fluorination catalyst by bringing the fluorination catalyst into contact with a regeneration stream including an oxidizing agent. Also, equipment suitable for carrying out this process.