EXTRACTION AGENT FOR TRANSURANIC ELEMENTS AND SEPARATION OF TRANSURANIC ELEMENTS USING THE SAME

摘要

PURPOSE:To obtain a high TRU extraction performance even in a high concn. region by using a compd. having a specified formula such as bis p-nonylphenyl phosphate as an extraction agent for transuranic elements. CONSTITUTION:The compd. expressed by the formula (R1 and R2 are a6-18C linear or branched alkyl group having >=6 carbon atoms in a main chain, X is hydrogen atom, a univalent or bivalent metallic ion or ammonium ion) such as bis p-nonylphenyl phosphate and bis p-n-hexel-phenyl phosphate is used as the extraction agent for the transranic elements. Then, this extraction agent is impregnated to a porous carrier such as styrene-vinylbenzene copolymer to make an absorbent and the transuranic elements are absorbed to this absorbent to be separated.