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:
Sep. 16, 2014
Filed:
Apr. 01, 2013
Mexichem Amanco Holding S.a. DE C.v., Tlalnepantla, MX;
Andrew Paul Sharratt, Cheshire, GB;
Robert Elliott Low, Cheshire, GB;
John Charles McCarthy, Cheshire, GB;
Mexichem Amanco Holding S.A. de C.V, Tlalnepantla, MX;
Abstract
The invention relates to a process for preparing 2,3,3,3-tetrafluoropropene (CFCF═CH), performed using the steps of dehydrohalogenating 1,1,1,2,2-pentafluoropropane (CHCFCF, HFC-245ca) 1,1,1,2-tetrafluoro-2-chloropropane, 1,1,1,2,3-pentafluoropropane (CHFCHFCF, HFC-245eb) and/or 1,1,1,2-tetrafluoro-3-chloropropane in the presence of a base, and converting a trifluorodichloropropane or a difluorotrichloropropane or a fluorotetrachloropropane to CHCFCF, 1,1,1,2-tetrafluoro-2-chloropropane, CHFCHFCF, and/or 1,1,1,2-tetrafluoro-3-chloropropane.