Title:
ＨＦＣ－２３のリサイクルにおける触媒安定性を向上する方法
Document Type and Number:
Japanese Patent JP7402343
Kind Code:
B2
Abstract:
Disclosed is a method for improving the stability of a catalyst in recycling HFC-23. The recycling is realized by means of a fluorine-chlorine exchange reaction with HFC-23 and a halogenated hydrocarbon. The catalyst for the fluorine-chlorine exchange reaction comprises a main body catalyst and a metal oxide, wherein the metal oxide is selected from at least one metal oxide of K, Na, Fe, Co, Cu, Ni, Zn or Ti, and has an addition amount of 0.1-5wt%. The present invention has advantages such as a good catalyst stability, a long life, and a low content of by-product CFC-12.
Inventors:
Ryukan
Jean Jeong
Han Wenfeng
Wang Shucheng
Zhou Faxiang
Jean Jeong
Han Wenfeng
Wang Shucheng
Zhou Faxiang
Application Number:
JP2022535668A
Publication Date:
December 20, 2023
Filing Date:
February 24, 2020
Export Citation:
Assignee:
Zhejiang Chemical Research Institute Co., Ltd.
International Classes:
B01J38/12; B01J27/132; B01J27/32; B01J38/04; B01J38/42; C07C17/20; C07C19/10
Domestic Patent References:
| JP2019516551A | ||||
| JP10306046A | ||||
| JP11000559A |
Foreign References:
| EP2172441A1 | ||||
| CN104628513A |
Attorney, Agent or Firm:
Hiroaki Yamane
Koji Amano
Koji Amano