Title:
分枝状フッ素化乳化剤の回収
Document Type and Number:
Japanese Patent JP6532524
Kind Code:
B2
Abstract:
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.
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Inventors:
Klaus Hinzer
Aegon Overmeier
Arnettaler
Aegon Overmeier
Arnettaler
Application Number:
JP2017506621A
Publication Date:
June 19, 2019
Filing Date:
April 15, 2015
Export Citation:
Assignee:
3M INNOVATIVE PROPERTIES COMPANY
International Classes:
C07C51/47; B01J41/04; B01J41/12; B01J49/57; C07C59/135; C09K23/00; C09K23/44
Domestic Patent References:
| JP2008532751A | ||||
| JP2002059160A | ||||
| JP2001062313A |
Foreign References:
| WO2009157416A1 |
Attorney, Agent or Firm:
Taro Akazawa
Wakako Nomura
Tsukuda Seigen
Ryohei Yoshino
Wakako Nomura
Tsukuda Seigen
Ryohei Yoshino