Title:
PREPARATION PROCESS FOR TRIFLUOROACETIC ACID
Document Type and Number:
WIPO Patent Application WO/2018/209842
Kind Code:
A1
Abstract:
Disclosed in the present invention is a trifluoroacetic acid synthesis process, the preparation process comprising: placing a solid catalyst in a fixed bed; using a steady-state pump to pass hydrogen peroxide through same; raising to a fixed temperature; introducing nitrogen and trifluoroethane to react with the hydrogen peroxide; and obtaining the trifluoroacetic acid final product. The preparation process for trifluoroacetic acid disclosed in the present invention uses trifluoroethane as a raw material; the preparation process is simple and the product has high purity, the product purity being ≥99％ and the conversion rate being ≥95％; and the catalyst in the fixed bed can be used continually, increasing industrial efficiency.
Inventors:
WU SHENGJUN (CN)
CHEN CAIYAN (CN)
YANG RUIQIN (CN)
XING CHUANG (CN)
LI HUAXIN (CN)
ZHANG LINLIN (CN)
ZOU XUEMING (CN)
HUANG KAIHUA (CN)
CHEN CAIYAN (CN)
YANG RUIQIN (CN)
XING CHUANG (CN)
LI HUAXIN (CN)
ZHANG LINLIN (CN)
ZOU XUEMING (CN)
HUANG KAIHUA (CN)
Application Number:
PCT/CN2017/099972
Publication Date:
November 22, 2018
Filing Date:
August 31, 2017
Export Citation:
Assignee:
NANTONG BAOKAI CHEMICAL CO LTD (CN)
International Classes:
C07C51/285; C07C53/18
Domestic Patent References:
| WO2014186386A1 | 2014-11-20 |
Foreign References:
| CN107056601A | 2017-08-18 | |||
| CN106349033A | 2017-01-25 | |||
| CN105198729A | 2015-12-30 | |||
| CN106008199A | 2016-10-12 | |||
| CN103524325A | 2014-01-22 | |||
| CN1165807A | 1997-11-26 |
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