发明名称 |
METHOD OF RECOVERING FLUOROCHEMICAL SURFACTANT |
摘要 |
Upon recovering a fluorochemical surfactant from a fluorochemical-containing aqueous solution, there is provided a method for recovering the fluorochemical surfactant from the aqueous solution containing the surfactant. In the method, the fluorochemical surfactant is recovered by subjecting the aqueous solution containing the fluorochemical surfactant to a filtration treatment step with a reverse osmosis membrane so as to obtain from the aqueous solution, a concentrated aqueous solution in which the concentration of the fluorochemical surfactant is increased. <IMAGE> |
申请公布号 |
EP1323460(A4) |
申请公布日期 |
2004.07.28 |
申请号 |
EP20010955584 |
申请日期 |
2001.08.08 |
申请人 |
DAIKIN INDUSTRIES, LTD. |
发明人 |
ICHIDA, TAKUYA;KONDO, MASAHIRO |
分类号 |
B01D61/02;B01D61/04;B01D69/12;B01D71/56;B01D71/64;B01D71/68;C07C51/42;C07C53/21;C08F2/26;C08F6/00;C08F6/22;C08F14/18;C08F16/24 |
主分类号 |
B01D61/02 |
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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