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Anion exchanger, a mixture of an anion exchanger and a cation exchanger, a mixed bed comprising an anion exchanger and a cation exchanger, a process for producing them, and a process for purifying hydrogen peroxide water
Anion exchanger, a mixture of an anion exchanger and a cation exchanger, a mixed bed comprising an anion exchanger and a cation exchanger, a process for producing them, and a process for purifying hydrogen peroxide water
By contacting a mixture of an anion exchanger (B) and a cation exchanger with carbon dioxide-dissolved water obtained by dissolving carbon dioxide gas in pure water or ultrapure water, the anion exchanger (B) is brought into contact with bicarbonate (A) having an ionic or bicarbonate ionic form and a carbonate ionic form to obtain a mixture of the anion exchanger (A) and the cation exchanger (1) A method of producing a mixture of an anion exchanger and a cation exchanger. According to the present invention, the anion exchanger in the mixture of the anion exchanger and the cation exchanger can be converted into bicarbonate ion or bicarbonate ion form and carbonate ion form in the state of the mixture.
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