Plutonium (iv) complexes of mixed pyridine n-oxide and phosphinoxide f-element extractants.
- John H.
- Alejandro E.
- Brian L.
- Robert T.
- Mary P.
Analytical and bulk scale separation and processing of aqueous acidic solution s containing f-element ions are regularly accomplished using liquid-liquid extraction (LLE) methods that employ a neutral organic donor ligand dissolved in an organic phase . 1-5 Several monofunctional ligands have been used as LLE reagents, but all display one or more deficiencies1 'S due to the chemical similarity of the tri valent lanthanides (Ln) to th e trivalent actindes (An) . Since the trivalent 4f and 5f ions have identical charges, chemical separation agents for these two groups need to differentiate among these har d cations based on their size or chemical bonding preferences . This task is not easy since, as a consequence of the lanthanide and actinide contractions, the Ln and An fission products which need to be separated have similar ionic radii . In order to develop new ligands for the separation process, we must have a fundamental understanding of how these separation agents interact with both Ln and An ions on a molecular level.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 976545
- Report Number(s):
- LA-UR-03-0748; TRN: US201017%%692
- Resource Relation:
- Journal Volume: 673; Conference: Submitted to: Plutonium Futures Conference. Marriott Hotel, Albuquerque, NM, July 6-10, 2003
- Country of Publication:
- United States
- Language:
- English
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