An overview and historical look back at the solvent extraction using nitrogen donor ligands to extract and separate An(III) from Ln(III)
2008; R. Oldenbourg Verlag; Volume: 96; Issue: 4-5 Linguagem: Inglês
10.1524/ract.2008.1483
ISSN2193-3405
AutoresChristian Ekberg, Anna Fermvik, Teodora Retegan, Gunnar Skarnemark, M.R.St.J. Foreman, Michael J. Hudson, Sofie Englund, Mikael Nilsson,
Tópico(s)Lanthanide and Transition Metal Complexes
ResumoThe partitioning of minor trivalent actinides (An) from lanthanides (Ln) is one of the challenges in the chemical treatment of nuclear waste. The optimal ligand to carry out the separation of An(III) and Ln(III) using solvent extraction has to meet several important criteria: high selectivity towards the solute, chemical and radiolytic stability, stripping possibilities and recycling of the organic phase, high separation factors and good distribution ratio, to name just a few of them. A chronological line can be drawn along the development of each extraction ligand family and some milestones are emphasized in this overview. Further developments in organic synthesis of extracting ligands are expected.
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