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Licensed Unlicensed Requires Authentication Published by De Gruyter (O) March 15, 2019

Separation of trivalent actinides and lanthanides using various ‘N’, ‘S’ and mixed ‘N,O’ donor ligands: a review

  • Arunasis Bhattacharyya and Prasanta K. Mohapatra EMAIL logo
From the journal Radiochimica Acta

Abstract

Separation of trivalent actinide (An) and lanthanide (Ln) elements is one of the burning topics in the back end of the nuclear fuel cycle due to the similarity in their chemical behaviour. A significant amount of research is being carried out worldwide to develop suitable ligands for the separation of the trivalent actinides and lanthanides. Some of the research groups are engaged in continuous improvement of the di-ethylene-triamine-penta acetic acid (DTPA) based Ln/An separation method, whereas extensive research is going on for the development of the lipophilic and hydrophilic ‘N’ donor heteropolycyclic ligands as the actinide selective ligand. A number of ‘S’ donor ligands are also explored for the Ln/An separation. In the present review, we made an attempt to highlight various separation processes based on soft donor ligands developed for Ln/An separations. Beside the conventional solvent extraction processes, separation possibilities membrane based and solid phase extraction techniques are evaluated for the Ln/An separation and are compiled in the present review.

Acknowledgement

The authors thank Dr. P.K. Pujari, Head, Radiochemistry Division for his constant encouragement and keen interest.

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Received: 2018-10-04
Accepted: 2019-02-13
Published Online: 2019-03-15
Published in Print: 2019-09-25

©2019 Walter de Gruyter GmbH, Berlin/Boston

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