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    A comparison on the use of DEHBA or TBP as extracting agent for tetra- and hexavalent actinides in the CHALMEX Process

    Year: 2022

    Journal: J. Radioanal. Nucl. Chem., Volume 331, DEC, page 5137–5145

    Authors: Authen, Thea Lyseid; Tekikachew, Behabitu Ergette; Foreman, Mark R. St J.; Wilden, Andreas; Ekberg, Christian

    Organizations: H2020 Euratom Research and Innovation Programme [755171]

    Keywords: GANEX; CHALMEX; DEHBA; Spent nuclear fuel recycling

    The Chalmers Grouped ActiNide EXtraction process is a solvent extraction process for the homogeneous recycling of spent nuclear fuel. The use of TBP for the extraction of tetra- and hexavalent actinides can be problematic for several reasons, including troublesome degradation products causing crud formation, decreased extraction yield and the possibility of explosive red oil reactions. Here, the substitution of TBP by a N,N-dialkyl monoamide, DEHBA, is investigated. The findings suggest that DEHBA can be a suitable extracting agent for use in the CHALMEX solvent, although identified drawbacks need to be further investigated.
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