A NEW EXTRACTION CHROMATOGRAPHY RESIN CONTAINING KLÄUI LIGANDS FOR APPLICATION IN ACTINIDE SEPARATIONS
Journal Article
·
· Solvent Extraction and Ion Exchange, 22(6):947-960
An extraction chromatography resin containing the anionic ligand (η5-pentamethylcyclopentadienyl)tris-(diethylphosphito-P)cobalt(III), (L) has been prepared. The resin consists of 1 wt% L on Amberlite® XAD-7. This resin strongly sorbs Am(III) and Pu(IV). The sorption of these ions decreases with increasing nitric acid concentration, but this effect is more pronounced for Am(III). This allows for convenient separation of Am(III) from Pu(IV) by simple adjustments in the nitric acid concentration. The tripodal geometry of L disfavors the complexation of uranyl ion, so sorption of U(VI) by the L-containing resin is weak.
- Research Organization:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 15015107
- Report Number(s):
- PNNL-SA-41584; 12298
- Journal Information:
- Solvent Extraction and Ion Exchange, 22(6):947-960, Journal Name: Solvent Extraction and Ion Exchange, 22(6):947-960
- Country of Publication:
- United States
- Language:
- English
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