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Concentration and Separation of Actinides in Nitric Acid Media with Fibrous “Filled” Sorbents

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Abstract

The behavior of actinides in sorption from nitric acid solutions with fibrous “filled” sorbents was studied. It was found that the sorbents with methylpyrazole groups POLIORGS 4-n and 17-n and anion exchanger AV-17-n sorb completely only Pu(IV) from strongly acidic solutions. The other actinides studied [Am(III), U(VI), Pa(V), Np(V)], and also Eu(III), Tc(VII), and Cs(I) are not appreciably sorbed under these conditions. The sorbents are characterized by good kinetic properties and chemical stability in HNO3 solutions. The possibility of using fibrous "filled" sorbents for concentrating plutonium from nitric acid solutions and separating plutonium from other radionuclides was demonstrated. Pu can be desorbed with 0.5-1 M HNO3.

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Authors and Affiliations

  1. Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, Moscow, Russia

    N. P. Molochnikova, G. V. Myasoedova & I. G. Tananaev

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  1. N. P. Molochnikova
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  2. G. V. Myasoedova
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  3. I. G. Tananaev
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Molochnikova, N.P., Myasoedova, G.V. & Tananaev, I.G. Concentration and Separation of Actinides in Nitric Acid Media with Fibrous “Filled” Sorbents. Radiochemistry 45, 605–607 (2003). https://doi.org/10.1023/B:RACH.0000015760.81046.76

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  • DOI: https://doi.org/10.1023/B:RACH.0000015760.81046.76

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