Title:
METHOD OF REDUCING CARBON DEPOSIT ON CATALYST IN UTILIZATION OF HFC-23 AS RESOURCE
Document Type and Number:
WIPO Patent Application WO/2021/114480
Kind Code:
A1
Abstract:
Disclosed is a method for reducing carbon deposits on a catalyst in the utilization of HFC-23 as a resource. Said utilization as a resource is achieved by using HFC-23 and halogenated hydrocarbons for a fluorine-chlorine exchange reaction. The catalyst for the fluorine-chlorine exchange reaction includes a main catalyst and a precious metal. The precious metal is selected from at least one of Pt, Pd, Ru, Au or Rh, and the addition amount thereof is 0.01-2 wt%. During the fluorine-chlorine exchange reaction, hydrogen gas is introduced. The invention has advantages of good catalyst stability, long service life and the like.
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Inventors:
ZHANG JIANJUN (CN)
HAN WENFENG (CN)
WANG SHUCHENG (CN)
LIU WUCAN (CN)
ZHOU FEIXIANG (CN)
HAN WENFENG (CN)
WANG SHUCHENG (CN)
LIU WUCAN (CN)
ZHOU FEIXIANG (CN)
Application Number:
PCT/CN2020/076371
Publication Date:
June 17, 2021
Filing Date:
February 24, 2020
Export Citation:
Assignee:
ZHEJIANG RES INSTITUTE OF CHEMICAL INDUSTRY CO LTD (CN)
ZHEJIANG LANTIAN ENVIROMENTAL PROT HI TECH CO LTD (CN)
SINOCHEM LANTIAN CO LTD (CN)
ZHEJIANG LANTIAN ENVIROMENTAL PROT HI TECH CO LTD (CN)
SINOCHEM LANTIAN CO LTD (CN)
International Classes:
C07C17/20; B01J23/10; C07C19/10
Domestic Patent References:
| WO2003051802A1 | 2003-06-26 | |||
| WO1996029296A1 | 1996-09-26 |
Foreign References:
| CN104628513A | 2015-05-20 | |||
| CN107162871A | 2017-09-15 | |||
| CN109748775A | 2019-05-14 | |||
| CN109261142A | 2019-01-25 | |||
| CN109748776A | 2019-05-14 | |||
| CN107216233A | 2017-09-29 | |||
| US3009966A | 1961-11-21 | |||
| US20030166981A1 | 2003-09-04 | |||
| CN104628514A | 2015-05-20 | |||
| CN104628513A | 2015-05-20 | |||
| CN109748775A | 2019-05-14 |
Other References:
See also references of EP 3904318A4
Attorney, Agent or Firm:
ZHEJIANG HANGZHOU JINTONG PATENT AGENCY CO., LTD (CN)
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