Email this article Technology for reprocessing mother liquor and washing solution from crystalization purification of HTGR SNF
- Authors: Tkachenko L.I.1, Vidanov V.L.2, Kenf E.V.1, Volodina N.Y.1, Pleshakov Y.O.1, Shadrin A.Y.3
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Affiliations:
- Khlopin Radium Institute
- Bochvar High-Technology Research Institute of Inorganic Materials
- Science and Innovations Private Enterprise for Nuclear Industry Scientific Development
- Issue: Vol 66, No 2 (2024)
- Pages: 157–164
- Section: Articles
- URL: https://journals.rcsi.science/0033-8311/article/view/263858
- DOI: https://doi.org/10.31857/S0033831124020067
- ID: 263858
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Abstract
The extractants diphenyl-N,N-dioctylcarbamoylmethylphosphine oxide and diphenyl-N,N-diisobutylcarbamoylmethylphosphine oxide for the processing of spent fuel were tested. The conditions for extraction and separation of uranium and TPE–REE were determined. A technological scheme was proposed for processing spent nuclear fuel from high-temperature gas-cooled reactors. During dynamic testing, at least 99.9% of uranium and plutonium and at least 99.5% of americium and rare earth elements were extracted. The TPE + REE and U+Pu fractions were isolated. The U+Pu fraction contained approximately 5% Am, while the TPE + REE fraction had less than 0.1% U and Pu.
About the authors
L. I. Tkachenko
Khlopin Radium Institute
Email: vlvidanov@bochvar.ru
Russian Federation, 2-i Murinskii pr. 28, St. Petersburg, 194021
V. L. Vidanov
Bochvar High-Technology Research Institute of Inorganic Materials
Author for correspondence.
Email: vlvidanov@bochvar.ru
Russian Federation, ul. Rogova 5a, Moscow, 123098
E. V. Kenf
Khlopin Radium Institute
Email: vlvidanov@bochvar.ru
Russian Federation, 2-i Murinskii pr. 28, St. Petersburg, 194021
N. Yu. Volodina
Khlopin Radium Institute
Email: vlvidanov@bochvar.ru
Russian Federation, 2-i Murinskii pr. 28, St. Petersburg, 194021
Ya. O. Pleshakov
Khlopin Radium Institute
Email: vlvidanov@bochvar.ru
Russian Federation, 2-i Murinskii pr. 28, St. Petersburg, 194021
A. Yu. Shadrin
Science and Innovations Private Enterprise for Nuclear Industry Scientific Development
Email: vlvidanov@bochvar.ru
Russian Federation, ul. Bol’shaya Ordynka 44, str. 3, Moscow, 119017
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