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:
Nov. 22, 2022
Filed:
Nov. 02, 2021
Applicant:
Arkema France, Colombes, FR;
Inventors:
Pierre-Marie Sedat, Pierre-Benite, FR;
Collier Bertrand, Colombes, FR;
Assignee:
ARKEMA FRANCE, Colombes, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 21/18 (2006.01); C07C 17/354 (2006.01); C07C 19/08 (2006.01); C07C 17/25 (2006.01); C07C 17/383 (2006.01);
U.S. Cl.
CPC ...
C07C 21/18 (2013.01); C07C 17/25 (2013.01); C07C 17/354 (2013.01); C07C 17/383 (2013.01); C07C 19/08 (2013.01);
Abstract
The present invention relates to a process for purifying 1,1,1,2,3-pentafluoropropane, comprising the steps of: i) providing a composition A1 comprising 1,1,1,2,3-pentafluoropropane and 1,1,1,3-tetrafluoropropane; ii) purifying, preferably distilling, said composition A1 under conditions that are sufficient to form at least two streams including a first stream comprising 1,1,1,2,3-pentafluoropropane and a second stream comprising 1,1,1,3-tetrafluoropropane. The present invention also relates to a process for producing 2,3,3,3-tetrafluoropropene and a composition comprising 2,3,3,3-tetrafluoropropene.