发明名称 |
Process for the purification of pentafluoroethane by extractive distillation |
摘要 |
A process for the purification of pentafluoroethane (F125) containing chloropentafluoroethane (F115). The F125-F115 mixture to be purified is subjected to an extractive distillation, the extractant being a C5-C8 perfluoroalkyl halide.
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申请公布号 |
US6039845(A) |
申请公布日期 |
2000.03.21 |
申请号 |
US19980002344 |
申请日期 |
1998.01.02 |
申请人 |
ELF ATOCHEM S.A. |
发明人 |
BERTOCCHIO, RENE;LACROIX, ERIC;PERDRIEUX, SYLVAIN |
分类号 |
C07C17/386;(IPC1-7):B01D3/34 |
主分类号 |
C07C17/386 |
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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