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- Title
Extraction of actinides with heterocyclic dicarboxamides.
- Authors
Alyapyshev, M.; Babain, V.; Tkachenko, L.; Kenf, E.; Voronaev, I.; Dar’in, D.; Matveev, P.; Petrov, V.; Kalmykov, S.; Ustynyuk, Y
- Abstract
Extraction of actinides from aqueous nitric acid by three different heterocyclic dicarboxamides (2,6-pyridinedicarboxamide, 2,2′-bipyridine-6,6′-dicarboxamide and 1,10-phenanthroline-2,9-dicarboxamides) was studied. It was shown that all studied ligands extract actinides at different oxidation states (U(VI), Np(V), Pu(IV), Am(III), Cm(III)) from acidic solutions. All studied diamides extract Am(III) better than Cm(III). Et(pHexPh)ClPhen contains electron-withdrawing chlorine atoms at the positions 4 and 7 of the phenanthroline moiety (SFAm/Cm = 4-6) and possesses the highest separation factor Am(III)/Cm(III). The studied ligands possess high extraction ability to all actinides present in HLW and therefore they could be used for simultaneous extraction of actinides in the GANEX-type process.
- Subjects
ACTINIDE elements; DICARBOXIMIDES; HETEROCYCLIC compounds; PHENANTHROLINE; EXTRACTION (Chemistry)
- Publication
Journal of Radioanalytical & Nuclear Chemistry, 2018, Vol 316, Issue 2, p419
- ISSN
0236-5731
- Publication type
Article
- DOI
10.1007/s10967-018-5775-7