Title:
2-クロロ-1,1,1,2-テトラフルオロプロパンおよび2,3,3,3-テトラフルオロプロペンの製造方法
Document Type and Number:
Japanese Patent JP5482665
Kind Code:
B2
Abstract:
To provide processes for efficiently and economically producing 2-chloro-1,1,1,2-tetrafluoropropane (R244bb) and 2,3,3,3-tetrafluoropropene (R1234yf) in an industrially practical manner. A process for producing 2-chloro-1,1,1,2-tetrafluoropropane, which comprises a chlorination step of reacting 1,2-dichloro-2-fluoropropane and chlorine in the presence of a solvent under irradiation with light to obtain 1,1,1,2-tetrachloro-2-fluoropropane, and a fluorination step of reacting the 1,1,1,2-tetrachloro-2-fluoropropane obtained in the chlorination step and hydrogen fluoride in the presence of a catalyst to obtain 2-chloro-1,1,1,2-tetrafluoropropane, and a process for producing 2,3,3,3-tetrafluoropropene, which comprises dehydrochlorinating it in the presence of a catalyst.
Inventors:
Satoshi Kawaguchi
Takashi Okazoe
Shuichi Okamoto
Takashi Okazoe
Shuichi Okamoto
Application Number:
JP2010542979A
Publication Date:
May 07, 2014
Filing Date:
December 15, 2009
Export Citation:
Assignee:
Asahi Glass Co., Ltd.
International Classes:
C07C17/20; C07C17/10; C07C17/25; C07C19/10; C07C21/18; C07B61/00
Foreign References:
| WO2007079431A2 | 2007-07-12 |
Attorney, Agent or Firm:
Patent Business Corporation Sakura International Patent Office