Separation of Alkali and Alkaline Earth Metal Ions Using Novel DBPDA Ion Exchanger and Its Ion Exchange Properties

새로운 DBPDA 이온교환체를 사용한 알칼리 및 알칼리 토금속 이온들의 분리와 그의 이온교환 성질

  • Received : 1993.03.27
  • Published : 1993.08.25

Abstract

The ion exchange capacity of DBPDA ion exchanger, {(4,5):(13,14)-dibenzo-6, 9, 12-trioxa-3, 15, 21-triazabicyclo [15.3.1] heneicosa-1(21), 17, 19-triene-2, 16-dione : DBPDA ion exchanger} was 4.2meq/g. The distribution coefficients of alkali and alkaline earth metal ions in the various concentrations of hydrochloric acid were determined using DBPDA ion exchanger. Also alkali and alkaline earth metal ions were separated using DBPDA ion exchanger. From these results the effect of pH of solution and ionic radii of the metal ions on the distribution coefficients of alkali and alkaline earth metal ions were discussed.

Keywords

DBPDA Ion Exchanger;Capacity;Alkali and Alkaline Earth Metal Ions;Separation;Distribution Coefficients;Column Ion Exchange Cromatography;pH;Ionic Radii

Acknowledgement

Supported by : 교육부 기초과학연구소