Title: Modified diglycolamides for grouped actinide separation
Authors: MALMBECK RIKARDMAGNUSSON DANIELGEIST ANDREAS
Citation: JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY vol. 314 p. 2531-2538
Publisher: SPRINGER
Publication Year: 2017
JRC N°: JRC119424
ISSN: 0236-5731 (online)
URI: https://publications.jrc.ec.europa.eu/repository/handle/JRC119424
DOI: 10.1007/s10967-017-5614-2
Type: Articles in periodicals and books
Abstract: The EURO-grouped actinide extraction process has been developed to co-separate transuranic actinide elements from spent nuclear fuel, based on an organic solvent composed of two extractants, a diglycolamide (TODGA) and a malonamide (DMDOHEMA). This work aims to simplify the organic formulation, replacing the two extractants with a single modified diglycolamide. Batch experiments were carried out with the new formulation, investigating the extraction behaviour of transuranic elements and important FPs under high Pu loading. The solvent had a Pu loading capacity of > 30 g/L and yielded low distribution ratios for problematic elements, i.e., Sr, Zr, Mo and Fe for acidities up to 2 M HNO3. Although further optimization is needed, the tested molecule is a very promising candidate for a simplified organic solvent for this type of separation.
JRC Directorate:Nuclear Safety and Security

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