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On the Possibility of Extractive Fractionation of REEs and TPUs from Weakly Acid Raffinate Produced of Irradiated Fuel Elements with a Mixture of ChCD and D2EHPA in Polar Solvent

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Abstract

Laboratory study was performed to examine the extraction of rare-earth elements and americium with a synergic mixture of chlorinated cobalt dicarbollide (ChDC) and di-2-ethylhexyl phosphoric acid (D2EHPA). It was shown that this extractive agent effectively extracts TPEs and REEs from a nitrate solution of highly radioactive wastes and can extract americium into a separate fraction with good purification to removes. The scheme suggested for extractive isolation of TPEs has a number of advantages over the schemes previously taken for verification.

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Authors and Affiliations

  1. Khlopin Radium Institute, St. Petersburg, 194021, Russia

    D. N. Shishkin, N. K. Petrova & N. D. Goletskii

Authors
  1. D. N. Shishkin
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  2. N. K. Petrova
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  3. N. D. Goletskii
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Correspondence to D. N. Shishkin.

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Russian Text © The Author(s), 2020, published in Radiochemistry, 2020, Vol. 62, No. 1, pp. 32–37.

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Shishkin, D.N., Petrova, N.K. & Goletskii, N.D. On the Possibility of Extractive Fractionation of REEs and TPUs from Weakly Acid Raffinate Produced of Irradiated Fuel Elements with a Mixture of ChCD and D2EHPA in Polar Solvent. Radiochemistry 62, 31–36 (2020). https://doi.org/10.1134/S1066362220010051

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  • DOI: https://doi.org/10.1134/S1066362220010051

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