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Radiation Hardness of Vinyl-Pyridinium Anion Exchanger of AXIONIT VPA-2 Brand in Nitrate Solutions

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Abstract

Radiation hardness of vinyl-pyridinium anion exchanger of AXIONIT VPA-2 brand, synthesized at Axion–Rare and Precious Metals AO (Perm) in the process of sorption extraction of plutonium from nitrate regeneration solutions formed in waste processing and in deactivation of industrial equipment. It was found that the effects associated with the destruction of the matrix of AXIONIT VPA-2 anion exchanger become more pronounced with the absorbed dose of gamma radiation increasing within the range from 35 to 1000 kGy. A partial destruction of granules of the anion exchanger is observed, its bulk density decreases, swelling in water and nitric acid solution increases, and the plutonium distribution coefficients regularly decrease, but remain rather large. Dynamic tests demonstrated that the irradiation of AXIONIT VPA-2 anion exchanger to an absorbed gamma radiation dose not exceeding 1000 kGy has no significant effect on its sorption properties in extraction of plutonium from nitrate regeneration solutions.

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Authors and Affiliations

  1. Mayak Production Association, Ozersk, 456780, Chelabinsk oblast, Russia

    E. V. Lyzlova, A. V. Glukhova, A. V. Konnikov & M. A. Biryukova

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  1. E. V. Lyzlova
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  2. A. V. Glukhova
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  3. A. V. Konnikov
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  4. M. A. Biryukova
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Correspondence to E. V. Lyzlova.

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Lyzlova, E.V., Glukhova, A.V., Konnikov, A.V. et al. Radiation Hardness of Vinyl-Pyridinium Anion Exchanger of AXIONIT VPA-2 Brand in Nitrate Solutions. Radiochemistry 62, 387–392 (2020). https://doi.org/10.1134/S106636222003011X

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  • DOI: https://doi.org/10.1134/S106636222003011X

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