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Insights into the Complexation Mechanism of a Promising Lipophilic PyTri Ligand for Actinide Partitioning from Spent Nuclear Fuel

Galluccio, Francesco; Macerata, Elena ; Weßling, Patrik 1; Adam, Christian 1; Mossini, Eros; Panzeri, Walter; Mariani, Mario; Mele, Andrea; Geist, Andreas ORCID iD icon 1; Panak, Petra J. 1
1 Institut für Nukleare Entsorgung (INE), Karlsruher Institut für Technologie (KIT)

Abstract:

The challenging issue of spent nuclear fuel (SNF) management is being tackled by developing advanced technologies that point to reduce environmental footprint, long-term radiotoxicity, volumes and residual heat of the final waste, and to increase the proliferation resistance. The advanced recycling strategy provides several promising processes for a safer reprocessing of SNF. Advanced hydrometallurgical processes can extract minor actinides directly from Plutonium and Uranium Reduction Extraction raffinate by using selective hydrophilic and lipophilic ligands. This research is focused on a recently developed N-heterocyclic selective lipophilic ligand for actinides separation to be exploited in advanced Selective ActiNide EXtraction (SANEX)-like processes: 2,6-bis(1-(2-ethylhexyl)-1H-1,2,3-triazol-4-yl)pyridine (PyTri-Ethyl-Hexyl-PTEH). The formation and stability of metal–ligand complexes have been investigated by different techniques. Preliminary studies carried out by electrospray ionization mass spectrometry (ESI–MS) analysis enabled to qualitatively explore the PTEH complexes with La(III) and Eu(III) ions as representatives of lanthanides. ... mehr


Verlagsausgabe §
DOI: 10.5445/IR/1000153023
Veröffentlicht am 25.11.2022
Originalveröffentlichung
DOI: 10.1021/acs.inorgchem.2c02332
Scopus
Zitationen: 7
Web of Science
Zitationen: 6
Dimensions
Zitationen: 7
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Nukleare Entsorgung (INE)
Publikationstyp Zeitschriftenaufsatz
Publikationsdatum 21.11.2022
Sprache Englisch
Identifikator ISSN: 0020-1669, 1520-510X
KITopen-ID: 1000153023
HGF-Programm 32.11.03 (POF IV, LK 01) Fundamental Scientific Aspects
Erschienen in Inorganic Chemistry
Verlag American Chemical Society (ACS)
Band 61
Heft 46
Seiten 18400–18411
Vorab online veröffentlicht am 04.11.2022
Nachgewiesen in Web of Science
Dimensions
Scopus
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