Title:
ADJUSTMENT METHOD OF ANION EXCHANGE RESIN
Document Type and Number:
Japanese Patent JP2023009491
Kind Code:
A
Abstract:
To provide an adjustment method of a weakly basic anion exchange resin which can reduce a washing period after performing, a regeneration process of a FB Type weakly basic anion exchange resin.SOLUTION: An adjustment method of an anion exchange resin comprises: a regeneration process for bringing an alkali metal hydroxide aqueous solution into contact with an anion exchange resin, for converting the anion exchange resin into a FB type; and a washing process for bringing washing water into contact with the FB type anion exchange resin converted into the FB type, for washing the FB type anion exchange resin. The anion exchange resin is a weakly basic anion exchange resin, and a normality of the alkali metal hydroxide aqueous solution is 0.025 to 0.50 N, in the adjustment method of the anion exchange resin.SELECTED DRAWING: None
Inventors:
HASHIMOTO KOICHIRO
YOKOTA HARUO
YOKOTA HARUO
Application Number:
JP2021112836A
Publication Date:
January 20, 2023
Filing Date:
July 07, 2021
Export Citation:
Assignee:
ORGANO KK
International Classes:
B01J49/57; B01J41/07; B01J41/14; B01J49/60
Attorney, Agent or Firm:
Patent Attorney Corporation Ashitaba International Patent Office
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