【摘 要】
：
Anionic exchange resins for adsorption/desorption of uranium were synthesized from chloromethyl styrene-divinyl benzene copolymer by the interpolymerization method.To obtain stable resins of high ther
【机 构】
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Dept.of Chem.Eng.,Kwangwoon Univ.,Seoul 139-701 Korea
【出 处】
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The 6th International Conference on Separation and Technolog
论文部分内容阅读
Anionic exchange resins for adsorption/desorption of uranium were synthesized from chloromethyl styrene-divinyl benzene copolymer by the interpolymerization method.To obtain stable resins of high thermal resistance and hardness,nano-clay Closite 20A and 93A were added.Adsorption/Desorption tests with synthetic and 5 commercial ion exchange resins were conducted in dilute UO2(SO4)22-solutions.Results showed that 2 commercial resins gave very high adsorption efficiency of 99.8% whereas the synthetic resin gave the efficiency of 66.7%.In case of desorption,synthetic and commercial resins gave the similar efficiencies.On the other hand,the adsorption equilibrium was rapidly reached with synthetic resins.Furthermore,the synthetic resins remained stable up to 60℃ which was 5 degrees higher than the cases of commercial ones.
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