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METHOD FOR REGENERATING ANION EXCHANGE RESIN AND REGENERATION ANION EXCHANGE RESIN
METHOD FOR REGENERATING ANION EXCHANGE RESIN AND REGENERATION ANION EXCHANGE RESIN
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机译:再生阴离子交换树脂和再生阴离子交换树脂的方法
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摘要
PROBLEM TO BE SOLVED: To provide a method for repeatedly regenerating an anion exchange resin in which halogen gas is absorbed so that the resulting exchange capacity has almost the same degree of the exchange capacity of a brand-new anion exchange resin.SOLUTION: The method for regenerating used anion exchange resin in which halogen gas is absorbed includes a process for regenerating the used anion exchange resin with washing liquid including both an alkali compound and a reducing agent, and sets the moisture content in the regenerated anion exchange resin to be less than 5 wt.%. Use of the regeneration method can suppress deterioration during regeneration and regenerates halogen gas absorption characteristics that have almost the same degree of those of a brand-new article. Even though its use and regeneration are repeated, the exchange capacity of the anion exchange resin can be maintained to have almost the same degree of that of a brand-new article.
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