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:
Jan. 07, 2014
Filed:
Apr. 21, 2010
Masatoshi Nose, Settsu, JP;
Atsushi Suzuki, Settsu, JP;
Tsuneo Yamashita, Settsu, JP;
Kenichi Katsukawa, Settsu, JP;
Masatoshi Nose, Settsu, JP;
Atsushi Suzuki, Settsu, JP;
Tsuneo Yamashita, Settsu, JP;
Kenichi Katsukawa, Settsu, JP;
Daikin Industries, Ltd., Osaka, JP;
Abstract
The present invention provides a process for preparing 2-chloro-3,3,3-trifluoropropene including subjecting, in the absence of a catalyst, at least one chlorine-containing compound selected from the group consisting of chloropropane represented by formula (1): CClXCHClCHCl, wherein each X is the same or different and each represents Cl or F, chloropropene represented by formula (2): CClYCCl═CH, wherein each Y is the same or different and each represents Cl or F, and chloropropene represented by formula (3): CZ═CClCHCl, wherein each Z is the same or different and each represents Cl or F, to a reaction with hydrogen fluoride under heating in a gas phase. According to the present invention, 2-chloro-3,3,3-trifluoropropene (HCFC-1233xf) can be effectively prepared by an easy and economically advantageous process that is suitable for industrial scale production.