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. 09, 2015
Filed:
Sep. 24, 2009
Fuyuhiko Sakyu, Iruma-gun, JP;
Satoshi Yoshikawa, Iruma-gun, JP;
Satoru Okamoto, Fujimino, JP;
Yasuo Hibino, Shiki, JP;
Yoshio Nishiguchi, Iruma-gun, JP;
Fuyuhiko Sakyu, Iruma-gun, JP;
Satoshi Yoshikawa, Iruma-gun, JP;
Satoru Okamoto, Fujimino, JP;
Yasuo Hibino, Shiki, JP;
Yoshio Nishiguchi, Iruma-gun, JP;
Central Glass Company, Limited, Ube-shi, JP;
Abstract
According to the first characteristic of the present invention, there is provided a production process for 1,3,3,3-tetrafluoropropene including: the first step of reacting 1,1,1,3,3-pentachloropropane with hydrogen fluoride thereby obtaining 1-chloro-3,3,3-trifluoropropene; and the second step of reacting 1-chloro-3,3,3-trifluoropropene obtained in the first step with hydrogen fluoride in a gaseous phase in the presence of a fluorination catalyst. According to the second characteristic of the present invention, there is provided a dehydration process including bringing 1,3,3,3-tetrafluoropropene containing at least water into contact with zeolite.