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Title:
MANUFACTURING METHOD OF 1,2-DICHLOROHEXAFLUOROCYCLOPENTENE
Document Type and Number:
WIPO Patent Application WO/2017/181517
Kind Code:
A1
Abstract:
The present invention relates to a manufacturing method of 1,2-dichlorohexafluorocyclopentene. The manufacturing method of 1,2-dichlorohexafluorocyclopentene comprises the following reaction steps: (1) using cyclopentadiene as a starting material in a liquid-phase reaction with chlorine, and obtaining tetrachlorocyclopentane; and (2) using tetrachlorocyclopentane as a starting material in a gas-phase chlorination and fluorination reaction with hydrogen fluoride and chlorine gas and in the presence of a fluorination catalyst to obtain 1,2-dichlorohexafluorocyclopentene, wherein the fluorination catalyst is a chromium-based catalyst. The technical solution provided in the invention uses an easily acquired raw material. A highly stable fluorination catalyst with high catalytic activity is also used, therefore making the solution applicable in large scale production of 1,2-dichlorohexafluorocyclopentene.

Inventors:
QUAN, Hengdao (Rm. 808, Sci & Tech. EdificeNo. 683 Sect. 2, No. 5 Zhongguancun South Street, Haidian District, Beijing 1, 100081, CN)
LIU, Dongpeng (Rm. 808, Sci & Tech. EdificeNo. 683 Sect. 2, No. 5 Zhongguancun South Street, Haidian District, Beijing 1, 100081, CN)
ZHOU, Xiaomeng (Rm. 808, Sci & Tech. EdificeNo. 683 Sect. 2, No. 5 Zhongguancun South Street, Haidian District, Beijing 1, 100081, CN)
JIA, Xiaoqing (Rm. 808, Sci & Tech. EdificeNo. 683 Sect. 2, No. 5 Zhongguancun South Street, Haidian District, Beijing 1, 100081, CN)
Application Number:
CN2016/086825
Publication Date:
October 26, 2017
Filing Date:
June 23, 2016
Export Citation:
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Assignee:
BEIJING YUJI SCIENCE & TECHNOLOGY CO., LTD. (Rm. 808, Sci & Tech. EdificeNo. 683 Sect. 2, No. 5 Zhongguancun South Street, Haidian District, Beijing 1, 100081, CN)
ZEON CORPORATION (1-6-2, MarunouchiChiyoda-ku, Tokyo, 100-8246, JP)
International Classes:
C07C17/25; C07C17/21; B01J23/26; B01J23/28; B01J23/30; C07C23/08
Foreign References:
CN105884569A2016-08-24
JP2002241324A2002-08-28
CN104907065A2015-09-16
US6218586B12001-04-17
Attorney, Agent or Firm:
BEIJING ZHAOJUN UNION INTELLECTUAL PROPERTY LAW FIRM (A2F YuYang Building, XiHuan South RoadChangping District, Beijing 0, 102200, CN)
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