Phosphoryl-Containing Chelating Sorbents for Concentrating Actinides |
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| Authors: | V P Morgalyuk N P Molochnikova G V Myasoedova E V Sharova O I Artyushin I G Tananaev |
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| Affiliation: | (1) Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, Moscow, Russia;(2) Nesmeyanov Institute of Organoelemental Compounds, Russian Academy of Sciences, Moscow, Russia |
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| Abstract: | New chelating sorbents with phosphinate, carbamoylmethylphosphinate, and methylenediphosphine dioxide functionalities are synthesized by chemical and noncovalent binding of the ligands to polymer matrices, chloromethylated styrene copolymer and XAD-7 acrylate polymer. The sorption and kinetic characteristics of the sorbents with respect to U(VI), Th(IV), Pu(IV), and Am(III) are studied in nitric acid solutions. The sorbents obtained by noncovalent binding of the ligands to XAD-7 demonstrate better kinetic properties. The sorbents can be used for concentrating actinides from 3–5 M HNO3 and for their partitioning. |
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