发明名称 |
RECOVERY OF BRANCHED FLUORINATED EMULSIFIERS |
摘要 |
Described herein is a process for recovering a branched, ether-containing fluorinated emulsifier from an anion exchange resin by (1) contacting the anion exchange resin with a recovery fluid to form an eluate, the recovery fluid comprising an ammonium salt, water, and a water-miscible solvent, wherein the fluorinated emulsifier is of the formula: [Rf-(0-R′f)n-0-CF(CF3)-C(0)0-]i M+1; and (2) separating the anion exchange resin from the eluate. |
申请公布号 |
EP3131675(A1) |
申请公布日期 |
2017.02.22 |
申请号 |
EP20150780059 |
申请日期 |
2015.04.15 |
申请人 |
3M Innovative Properties Company |
发明人 |
HINTZER, Klaus;OBERMAIER, Egon;THALER, Arne |
分类号 |
B01J49/00;C08J5/20 |
主分类号 |
B01J49/00 |
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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