Studies on the Properties of Porous and Nonporous Aminated Anion Exchange Resin and the Separation of Boron Isotopes

아민화된 다공성 비다공성 음이온 교환수지의 성질과 붕소 동위원소분리에 관한 연구

  • Tae Won Min (Department of Chemistry, Dong Guk University) ;
  • Je Jik O (Department of Chemical Education, Kong Ju National Teacher's College)
  • 민태원 (동국대학교 이과대학 화학과) ;
  • 오제직 (공주사범대학 화학과)
  • Published : 1985.04.20


For the separation of boron isotopes, aminated polystyrenedivinylbenzene ion-exchange resins were prepared by chloromethylation of styrene-divinylbenzene copolymer (DVB 10%), followed by the reaction of methylamine. During the preparation of styrene-divinylbenzene copolymer, heptane for the porous resin and toluene for the non-porous resin were used as diluent, and the pore volume of the resins was determined by mercury porosimeter. In both water and aqueous alcohol solutions, the distribution coefficient of boric acid was decreased in accordance with increasing the alcohol concentration and the number of carbon atoms in the alcohol molecules. As a result of separatioin of boron isotope with nonporous and porous resin in water solvent, the separation efficiency of porous resin is better than that of the nonporous, and the result in both water and 50% methyl alcohol solvent relevant to nonporous resin indicated that the latter was better than the former.



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