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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.:

US 10577294 B1

PDFFull Text
Date of Patent:
Mar. 03, 2020

Filed:

Dec. 07, 2016

Gas-phase catalytic fluorination with chromium catalysts

Applicant:

Arkema France, Colombes, FR;

Inventors:

David Andre, Brignais, FR;

Dominique Deur-Bert, Charly, FR;

Dominique Garrait, Charly, FR;

Anne Pigamo, Francheville, FR;

Laurent Wendlinger, Soucieu en Jarrest, FR;

Assignee:

Arkema France, Colombes, FR;

Attorney:

NK Patent Law

Primary Examiner:

Jafar F Parsa

Int. Cl.
CPC ...
C07C 17/20 (2006.01); B01J 38/46 (2006.01); B01J 23/92 (2006.01); B01J 37/14 (2006.01); B01J 37/18 (2006.01); B01J 38/10 (2006.01); B01J 38/12 (2006.01); B01J 27/32 (2006.01); B01J 37/12 (2006.01); B01J 37/16 (2006.01); B01J 27/132 (2006.01); C07C 17/21 (2006.01); B01J 23/26 (2006.01); B01J 37/26 (2006.01); B01J 38/42 (2006.01); B01J 38/04 (2006.01); B01J 37/24 (2006.01); C07C 17/087 (2006.01); C07C 19/08 (2006.01);
U.S. Cl.
CPC ...
C07C 17/206 (2013.01); B01J 23/26 (2013.01); B01J 23/92 (2013.01); B01J 27/132 (2013.01); B01J 27/32 (2013.01); B01J 37/12 (2013.01); B01J 37/14 (2013.01); B01J 37/16 (2013.01); B01J 37/18 (2013.01); B01J 37/24 (2013.01); B01J 37/26 (2013.01); B01J 38/04 (2013.01); B01J 38/10 (2013.01); B01J 38/12 (2013.01); B01J 38/42 (2013.01); B01J 38/46 (2013.01); C07C 17/087 (2013.01); C07C 17/21 (2013.01); B01J 2523/67 (2013.01); C07C 19/08 (2013.01); Y02P 20/584 (2015.11);
Abstract

The present invention relates to a method for fluorinating a chlorinated compound including the steps of (a) placing said chlorinated compound in contact with gaseous hydrogen fluoride within a reactor and in the presence of a fluorination catalyst to produce a fluorinated compound, and (b) regenerating the fluorination catalyst used in step a), the step of regenerating the fluorination catalyst including (c) treating said fluorination catalyst with an oxidizing agent to form an oxidized fluorination catalyst, and (d) treating the oxidized fluorination catalyst obtained in step (c) with a gas mixture including a reducing agent.

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