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 (CN)
LIU DONGPENG (CN)
ZHOU XIAOMENG (CN)
JIA XIAOQING (CN)
LIU DONGPENG (CN)
ZHOU XIAOMENG (CN)
JIA XIAOQING (CN)
Application Number:
PCT/CN2016/086825
Publication Date:
October 26, 2017
Filing Date:
June 23, 2016
Export Citation:
Assignee:
BEIJING YUJI SCIENCE & TECH CO LTD (CN)
ZEON CORP (JP)
ZEON CORP (JP)
International Classes:
C07C17/25; C07C17/21; B01J23/26; B01J23/28; B01J23/30; C07C23/08
Foreign References:
| CN105884569A | 2016-08-24 | |||
| JP2002241324A | 2002-08-28 | |||
| CN104907065A | 2015-09-16 | |||
| US6218586B1 | 2001-04-17 |
Attorney, Agent or Firm:
BEIJING ZHAOJUN UNION INTELLECTUAL PROPERTY LAW FIRM (CN)
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