Selective removal of cesium from model nuclear waste solutions using a solid membrane composed of an unsymmetrical calix[4]arenebiscrown-6 bonded to an immobilized polysiloxane backbone
作者： A Duhart
DOI: 10.1016/S0376-7388(00)00617-7
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摘要: The extraction of the two long lived isotopes of cesium (135Cs and 137Cs) is an important issue because of the specific mobility of 135ce sium from nuclear disposals. The selective removal of the latter from high active waste allows its destruction by transmutation or disposal in specific matrixes. Calix [4] biscrown-6 blocked in a 1, 3-alternate cone conformation, extracts more cesium than sodium, with a high efficiency and selectivity from simulated acidic and high sodium content liquid wastes. In order to reduce the possible loss …
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