이온교환법에 의한 탈질소 공정개발의 기초연구(V) -질산성 질소 선택적인 이온교환수지의 합성-

Basic Study for Development of Denitrogenation Process by Ion Exchange(V) -Synthesis of Nitrate-Selective Ion Exchange Resines-

Nitrate-selective ion exchange resin which have bulky tertiary amine as functional group have been synthesized by the reaction of chloromethylated polystyrene-divinylbenzene copolymer and the corresponding tertiary amine [$NR_3=NE_{t3} 1, N{(C_2 H_4 H_3)}_32]$in ethanol, while commercial resin has $NMe_3$ as functional group. The fundamental properties such as bulk density, water content, appearance index, exchange capacity, effective size, uniformity coefficient of synthesized anion exchange resin (1) have been measured. The ion exchange resin (1) and (2) exhibited the better selectivity for nitrate than sulfate in both batch and continuous column experiments.