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Separation of Actinides and REEs Using TODGA in Meta-Nitrobenzotrifluoride: Development and Demonstration of Flowsheet
- Authors: Tkachenko L.I.1, Kenf E.V.1, Babain V.A.1, Alyapyshev M.Y.2
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Affiliations:
- Khlopin Radium Institute
- AO Polymetal Engineering
- Issue: Vol 67, No 1 (2025)
- Pages: 42-52
- Section: Articles
- URL: https://ogarev-online.ru/0033-8311/article/view/307977
- DOI: https://doi.org/10.31857/S0033831125010065
- ID: 307977
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Abstract
A process was developed for the extraction and separation of actinides and REEs from PUREX process raffinates using TODGA in meta-nitrobenzotrifluoride (F-3). The proposed flowsheet was tested under dynamic conditions using simulated raffinates of the PUREX process. The scheme includes joint extraction of actinides and REE, nitric acid stripping, actinide stripping, and REE stripping. The conditions of selective MA stripping by DTPA solution in the presence of a salting-out agent were determined.
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About the authors
L. I. Tkachenko
Khlopin Radium Institute
Email: mikkaly@gmail.com
2-i Murinskii pr. 28, St. Petersburg, 194021 Russia
E. V. Kenf
Khlopin Radium Institute
Email: mikkaly@gmail.com
2-i Murinskii pr. 28, St. Petersburg, 194021 Russia
V. A. Babain
Khlopin Radium Institute
Email: mikkaly@gmail.com
2-i Murinskii pr. 28, St. Petersburg, 194021 Russia
M. Y. Alyapyshev
AO Polymetal Engineering
Author for correspondence.
Email: mikkaly@gmail.com
pr. Narodnogo Opolcheniya 2, St. Petersburg, 198216 Russia
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