Journal of Radiation Protection and Research

The Korean Association for Radiation Protection (대한방사선방어학회)
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Separation of Fission Products by Ion Exchange Method

이온 교환법(交換法)에 의한 핵분열생성물(核分裂生成物)의 분리(分離)

  • Lee, Byung-Hun (Department of Nuclear Engineering, Hanyang University) ;
  • Bang, Je-Geon (Department of Nuclear Engineering, Hanyang University)
  • Published : 1983.05.31
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Abstract

The sequential separation of Ru-103, Cs-137 and Ce-144 was carried out by organic cation exchanger, Amberite CG-120, and inorganic ion exchangers, silica gel and montmorillonite. The optimum conditions of Ru-103, Cs-137 and Ce-144 on Amberite CG-120 are 0.01M-, 0.01M- and 0.1IM- hydrochloric acid for the adsorption, and 3M-, 3M- and 5M-hydrochloric acid for the desorption, respectively. The optimum conditions of Ru-103, Cs-137 and Ce-144 on silica gel are pH 8, pH 8 and pH 8 for the adsorption. and 3M-, 1M- and 1M-hydrochloric acid for the desorption. respectively. The optimum conditions of Ru-103, Cs-137 and Ce-144 on montmorillonite are pH 8, 0.01M-hydrochloric acid and pH 4 for the adsorption, and 1M-, 5M- and 3M-hydrochloric acid for the desorption. respectively. The adsorption which occurs at lower ionic strength and the differences in desorption ionic strength are utilized for the separation of tracer mixture in continuous experiments. The individual separation of Ru-103, Cs-137 and Ce-144 can be carried out more efficiently with montmorillonite than with silica gel and Amberite CG-120.

Ru-103, Cs-137 그리고 Ce-144를 차례로 분리하는 방법을 유기양이온 교환체 Amberite CG-120, 무기이온 교환체, silica gel과 montmorillonite를 가지고 검토하였다. Amberite CG-120으로 Ru-103, Cs-137 그리고 Ce-144를 흡착 및 탈착하는 최적조건은 각각 0.01M-, 0.01M-, 0.1M-HCl과 3M-, 3M-, 5M-HCl이다. Silica gel로 Ru-103, Cs-137 그리고 Ce-144를 흡착 및 탈착하는 최적 조건은 각각 pH 8, pH 8, pH 8과 3M-, 1M-, 1M-HCl이다. Montmorillonite로 Ru-103, Cs-137 그리고 Ce-144를 흡착 및 탈착하는 최적 조건은 각각 pH 8, 0.01M-HCl, pH 4와 1M-, 5M-, 3M-HCl이다. 낮은 이온강도에서 일어나는 흡착 그리고 탈착 이온강도의 차이는 연속적인 실험에서 혼합핵종의 분리를 위하여 이용된다. Ru-103, Cs-137 그리고 Ce-144 혼합물의 개별분리는 Amberite CG-120, silica gel에서보다 montmorillonite에서 더욱 효과적이다.

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