发明名称 |
Method for recovering fluorine-containing solvents |
摘要 |
In a method for recovering a fluorine-containing solvent from the mixture comprising the fluorine-containing solvent and dyes, (i) a method for recovering a fluorine-containing solvent by distillation; and (ii) a method for recovering a fluorine-containing solvent comprising the steps of adding to the mixture the second solvent which uniformly mixes with the fluorine-containing solvent but does not dissolve the dyes; separating a precipitate from the resulting mixture; and separating the second solvent.
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申请公布号 |
US6245953(B1) |
申请公布日期 |
2001.06.12 |
申请号 |
US19990444402 |
申请日期 |
1999.11.22 |
申请人 |
DAIKIN INDUSTRIES, LTD. |
发明人 |
YAMAGUCHI FUMIHIKO;KATSUBE TOSHIYUKI |
分类号 |
C07C29/80;C07C29/86;C07C31/38;(IPC1-7):C07C29/76 |
主分类号 |
C07C29/80 |
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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