METHOD FOR REMOVING QUATERNARY SALT

Title:

METHOD FOR REMOVING QUATERNARY SALT

Document Type and Number:

WIPO Patent Application WO/2013/121869

Kind Code:

A1

Abstract:

The purpose of the present invention is to provide a method for efficiently removing a quaternary salt from an organic solvent. The present invention relates to a method for removing a quaternary salt, wherein a quaternary salt is removed from an organic solvent by bringing an aqueous solution, which contains at least one substance that is selected from the group consisting of (a1) compounds having an anionic functional group and (a2) polymers containing at least one carboxyl group or at least one sulfonic acid group, into contact with an organic solvent solution that contains the quaternary salt.

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Inventors:

TAKUMI KIYOSHI (JP)
SASAGAWA NAOKI (JP)
EZAKI YOICHIRO (JP)

Application Number:

PCT/JP2013/051735

Publication Date:

August 22, 2013

Filing Date:

January 28, 2013

Export Citation:

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Assignee:

ARAKAWA CHEM IND (JP)

International Classes:

B01D11/04

Foreign References:

JPS4955608A	1974-05-30
JPH09136034A	1997-05-27

Attorney, Agent or Firm:

SAEGUSA & PARTNERS (JP)
Patent business corporation 3 Edakuni [Hajime] patent firm (JP)

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