公开(公告)号：WO2022026865A1

公开(公告)日：2022-02-03

申请号：PCT/US2021/043958

申请日：2021-07-30

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： HINTZER, Klaus ,  HUBER, Stefan ,  KRUPP, Valentina ,  KOENIGSMANN, Herbert ,  ZHANG, Zhongxing ,  SCHMICK, Scott D. ,  BARRERA, Michael D. ,  LAMANNA, William M. ,  JARIWALA, Chetan P. ,  HIRSCHBERG, Markus

IPC: C08K3/00 ,  C08L27/12 ,  C09D127/12

Abstract: The present disclosure provides a process for removing fluoroorganic acidic compounds from a solution comprising at least one protic solvent, comprising: forming a mixture of a solution comprising at least one fluoroorganic acidic compound comprising less than 15 carbon atoms and protic solvent, wherein the solution has a pH of 4, with an extraction composition comprising at least one trialkylamine and organic solvent; reacting the fluoroorganic acidic compound with the trialkylamine to form a hydrophobic ionic compound comprising the anion of the fluoroorganic acidic compound and the cation of the trialkylamine; separating the mixture into a first phase comprising the protic solvent and at most 50 wt.% of the fluoroorganic acidic compound present in the initial solution; and a second phase comprising the organic solvent and hydrophobic ionic compound; removing the second phase from the first phase; and repeating steps aforementioned at least once more, wherein the first phase obtained in the last step is used as the initial solution.

公开(公告)号：EP4208505A1

公开(公告)日：2023-07-12

申请号：EP21851533.6

申请日：2021-07-30

Applicant: 3M Innovative Properties Company

Inventor： HINTZER, Klaus ,  HUBER, Stefan ,  KRUPP, Valentina ,  KOENIGSMANN, Herbert ,  ZHANG, Zhongxing ,  SCHMICK, Scott D. ,  BARRERA, Michael D. ,  LAMANNA, William M. ,  JARIWALA, Chetan P. ,  HIRSCHBERG, Markus

IPC: C08K3/00 ,  C08L27/12 ,  C09D127/12