OXIDATION-RESISTANT ANION-EXCHANGE RESIN AND METHOD FOR REFINING OXIDATIVE AQUEOUS SOLUTION

Japanese Patent JP3791709

B2

PROBLEM TO BE SOLVED: To provide an oxidation-resistant anion-exchange resin capable of being applied in various uses needing oxidation resistance and a method for desalting an oxidative aq. soln. SOLUTION: This oxidation-resistant anion-exchange resin is used in oxidative liqs. and contains a structural unit having a quaternary ammonium base expressed by the formula and a structural unit derived from an unsaturated hydrocarbonic group-contg. cross-linkable monomer. Further, an anion-contg. oxidative aq. soln. is treated with the oxidation-resistant anion-exchange resin and refined by this method. In the formula, A is a 3-8C straight-chain alkylene group, R1 is a 1-4C alkyl capable of being substituted by hydroxyl, R2 and R3 are a 1-4C hydrocarbonic group, X- is a counter ion coordinated to ammonium group, and the benzene ring can be substituted by an alkyl group or hydrogen atom.