Separation of trivalent americium and europium by purified Cyanex 301 immobilized in macro porous polymer期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Separation of trivalent americium and europium by purified Cyanex 301 immobilized in macro porous polymer

Authors:	Jing Chen A C Veltkamp A S Booij

Institution:	(1) Institute of Nuclear Energy Technology (INET), Tsinghua University, P. O. Box 1021, Beijing, 102201, P.R. China;(2) NRG, P. O. Box 25, 1755 ZG Petten, The Netherlands

Abstract:	The present work confirms the high separation ability of purified Cyanex 301 towards trivalent americium over europium in liquid-liquid extraction. Solvent 2-nitrophenyl octyl ether (NPOE) lowered the partitioning of Am³⁺ but remained the separation ability over europium. Solvent toluene and 3-octanone lowered the separation factor to 1000. It is feasible to separate Am³⁺ from Eu³⁺ by Cyanex 301 which was immobilized in the macro porous polymer (MPP). 3-Octanone is a suitable solvent for dissolving NH₄OH-saponified Cyanex 301 and MPP is a suitable solid supported material for column operation. A five-step column experiment demonstrated the feasibility to separate Am³⁺ from Eu³⁺ in column which was packed with Cyanex 301-impregnated MPP.

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