| 发明名称 |
Process for purifying 1,1,1,2-tetrafluoroethane. |
| 摘要 |
<p>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.</p> |
| 申请公布号 |
EP0548742(A1) |
申请公布日期 |
1993.06.30 |
| 申请号 |
EP19920121296 |
申请日期 |
1992.12.15 |
| 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 |
主分类号 |
B01J23/26 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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