Separation of Alkali and Alkaline Earth Metal Ions using Novel HDBPDA Ion Exchanger and Its Ion Exchange Characteristics

새로운 HDBPDA 이온교환체를 사용한 알칼리 및 알칼리토금속 이온들의 분리와 그의 이온교환특성

  • 김동원 (충북대학교 자연과학대학 화학과) ;
  • 김창석 (충북대학교 사범대학 과학교육과) ;
  • 최기영 (목원대학교 화학과) ;
  • 전영신 (한국원자력연구소 분석화학연구실) ;
  • 윤여학 (충북대학교 자연과학대학 화학과)
  • Published : 1993.09.20

Abstract

The ion exchange capacity of HDBPDA ion exchanger, {(4,5) : (13,14)-dibenzo-6,9,12-trioxa-3,15,21-triazabicyclo[15.3.l]heneicosa-(1,17,19)(18,20,21) triene ion exchanger: HDBPDA ion exchanger} was 3.8 meq/g. The distribution coefficients of alkali and alkaline earth metal ions in water and the various concentration of hydrochloric acid were determined. Concentration of hydrochloric acid have almost not influenced on the distribution coefficients of alkali and alkaline earth metal ions, but generally, the distribution coefficient was slightly increased with decrease of concentration of hydrochloric acid. The distribution coefficients of metal ions in water are larger than those of various hydrochloric acid concentrations. Also, alkali and alkaline earth metal ions are separated by column ion exchange chromatography using HDBPDA ion exchange with water as eluent. The distribution coefficents of alkali and alkaline earth metal ions were increased with increase of ionic radii of metal ions.

Keywords

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