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|Title:||Modified diglycolamides for grouped actinide separation|
|Authors:||MALMBECK RIKARD; MAGNUSSON DANIEL; GEIST ANDREAS|
|Citation:||JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY vol. 314 p. 2531-2538|
|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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