公开(公告)号：US20240291009A1

公开(公告)日：2024-08-29

申请号：US18632721

申请日：2024-04-11

Applicant: AGC INC.

Inventor： Takeshi SHIONO ,  Takeshi HIRAI ,  Yuko ARINAMI ,  Kana TANABE ,  Kei ISHITSUKA

IPC: H01M8/06 ,  H01M8/0239

CPC classification number: H01M8/0693 ,  H01M8/0239

Abstract: A method for purifying a treatment target solution which can remove a compound having an aliphatic hydrocarbon group which has at least one ionic group and a fluorine atom efficiently is provided.
The method for purifying a treatment target solution of the present invention comprises bringing a treatment target solution containing a compound having an aliphatic hydrocarbon group which has at least one ionic group selected from the group consisting of a carboxylic acid group and a sulfonic acid group, and a fluorine atom and may contain an oxygen atom, at least one acid selected from the group consisting of HF and H2SO4 and water, into contact with a resin having a tertiary amino group to remove the compound having an aliphatic hydrocarbon group from the treatment target solution.