| 发明名称 |
Process for purifying 1,1,1-trifluoro-2-fluoroethane |
| 摘要 |
1,1,1-trifluoro-2-fluoroethane (CFC 134a) is purified from 1,1-difluoro-2-chloroethylene (CFC 1122) by reacting a mixture comprising said compounds with hydrofluoric acid, at temperatures from 200 DEG C. to 450 DEG C., in the presence of chrome oxide (Cr2O3) in substantially crystalline form.
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| 申请公布号 |
US5475168(A) |
申请公布日期 |
1995.12.12 |
| 申请号 |
US19940243066 |
申请日期 |
1994.05.16 |
| 申请人 |
AUSIMONT S.P.A. |
发明人 |
MASIERO, ANTONIO;CUZZATO, PAOLO;BRAGANTE, LETANZIO |
| 分类号 |
B01J23/26;C07C17/38;C07C17/395;C07C19/08;(IPC1-7):C07C17/38 |
主分类号 |
B01J23/26 |
| 代理机构 |
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