Title:
RESIN PRODUCTION METHOD, ULTRAPURE WATER PRODUCTION METHOD, AND ULTRAPURE WATER PRODUCTION APPARATUS
Document Type and Number:
Japanese Patent JP2023039238
Kind Code:
A
Abstract:
To provide a novel production method of catalyst metal carrying resin which is capable of making a purification process efficient, and an ultrapure water production method using catalyst metal carrying resin produced by the method.SOLUTION: A production method of resin X has: filling first anion exchange resin A1 in which catalyst metal is carried and second anion exchange resin A2 in which catalyst metal is not carried into the same container; and purifying the first anion exchange resin A1 and the second anion exchange resin A2 filled into the container together. An ultrapure water production method has: bringing water to be treated containing hydrogen peroxide or dissolved oxygen in contact with ion exchange resin containing at least resin X produced in this manner to reduce the amount of hydrogen peroxide or dissolved oxygen.SELECTED DRAWING: Figure 2
Inventors:
KONDO TSUKASA
ICHIHARA FUMITAKA
SUGAWARA HIROSHI
ICHIHARA FUMITAKA
SUGAWARA HIROSHI
Application Number:
JP2021146298A
Publication Date:
March 20, 2023
Filing Date:
September 08, 2021
Export Citation:
Assignee:
ORGANO KK
International Classes:
B01J49/07; B01J31/08; B01J41/12; C01B5/00; C02F1/58
Attorney, Agent or Firm:
Akio Miyazaki
Masaaki Ogata
Masaaki Ogata