发明授权
US5571770A Catalyst for fluorination of 1,1,1,-trifluoro-2,2-dichloroethane and
method for preparing the same
失效
用于氟化1,1,1-三氟-2,2-二氯乙烷的催化剂及其制备方法
- 专利标题: Catalyst for fluorination of 1,1,1,-trifluoro-2,2-dichloroethane and method for preparing the same
- 专利标题(中): 用于氟化1,1,1-三氟-2,2-二氯乙烷的催化剂及其制备方法
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申请号: US490726申请日: 1995-06-15
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公开(公告)号: US5571770A公开(公告)日: 1996-11-05
- 发明人: Hoon Sik Kim , Moon Jo Chung , Byung Gwon Lee , Hyun Joo Lee
- 申请人: Hoon Sik Kim , Moon Jo Chung , Byung Gwon Lee , Hyun Joo Lee
- 申请人地址: KRX Seoul
- 专利权人: Korea Institute of Science and Technology
- 当前专利权人: Korea Institute of Science and Technology
- 当前专利权人地址: KRX Seoul
- 优先权: KRX32574/1994 19941202
- 主分类号: B01J27/138
- IPC分类号: B01J27/138 ; B01J23/26 ; B01J23/86 ; C07B61/00 ; C07C17/20 ; C07C19/08 ; C07C19/12
摘要:
There are a catalyst for fluorination production of 1,1,1-trifluoro-2,2-dichloroethane comprises chromium, one compound selected from the group consisting of Mg and Ca and at least one metal component selected from the group consisting of Zn, Ce and Ni, wherein the molar ratio of Cr to Mg or Ca ranges from 1:1 to 1:32 and the molar ratio Cr to the metal component is not more than 1:0.5, and method for preparing the same comprising the steps of; producing an admixture of a composition comprising chromium, one compound selected from the group consisting of magnesium fluoride and calcium fluoride and at least one metal compound selected from a group consisting of cerium fluoride, zinc fluoride and nickel fluoride with water and refluxing the admixture in methanol or ethanol.
公开/授权文献
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