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METHOD FOR PURIFYING UNSATURATED ORGANIC ACID SALT AND METHOD FOR REGENERATING WEAKLY BASIC ANION EXCHANGE RESIN AND ADSORBING RESIN USED THEREIN
METHOD FOR PURIFYING UNSATURATED ORGANIC ACID SALT AND METHOD FOR REGENERATING WEAKLY BASIC ANION EXCHANGE RESIN AND ADSORBING RESIN USED THEREIN
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机译:提纯不饱和有机盐的方法和弱碱性阴离子交换树脂的再生方法及其所用的吸附树脂
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摘要
PROBLEM TO BE SOLVED: To provide a method for purifying an unsaturated organic acid salt excellent in impurity-removing performance and suppressing a treatment cost, and a method for regenerating a weakly basic anion exchange resin and an adsorbing resin used in the purification.;SOLUTION: This method for purifying the unsaturated organic acid salt comprising a process for treating an aqueous solution of the unsaturated organic acid salt with the weakly basic anion exchange resin and/or adsorbing resin, and the method for regenerating the weakly basic anion exchange resin and/or adsorbing resin used for purifying the aqueous solution of the unsaturated organic acid salt are provided. The method for regenerating the weakly basic anion exchange resin and/or adsorbing resin comprises a process of making the weakly basic anion exchange resin and/or adsorbing resin in contact with an alkali. The method for regenerating the adsorbing resin used for purifying the unsaturated organic acid salt comprises a process of making the adsorbing resin in contact with an organic solvent or a mixture of the organic solvent with water.;COPYRIGHT: (C)2003,JPO
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