LAPSE:2023.26235
Published Article
LAPSE:2023.26235
Optimal Monazite Concentration Processes for the Extraction of Uranium and Thorium Fuel Material
April 3, 2023
The optimal conditions for the nitric acid dissolution of precipitates of hydroxides and hydrated oxides of rare-earth elements, uranium, and thorium obtained after autoclave alkaline opening of samples of monazite concentrate have been determined. The distribution of radioactive impurities between the solid phase and the solution in the processes of alkaline opening, dephosphorization, and acid dissolution of the pulp was studied. Two options are proposed for the extraction of uranium and thorium in the presence of rare earth elements, followed by separation of the components using tributyl phosphate of various contents in the carbon diluent.
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Keywords
autoclave leaching, Extraction, flow chart, monazite, radium, rare earth elements, separation, thorium, uranium
Subject
Suggested Citation
Fedorova O, Vershinina E, Krasitskaya S, Tananaev I, Myasoedov B, Vocciante M. Optimal Monazite Concentration Processes for the Extraction of Uranium and Thorium Fuel Material. (2023). LAPSE:2023.26235
Author Affiliations
Fedorova O: Ozyorsk Technological Institute, National Research Nuclear University (MEPhI), 456780 Ozyorsk, Russia
Vershinina E: School of Natural Sciences, Far Eastern Federal University, 690090 Vladivostok, Russia
Krasitskaya S: School of Natural Sciences, Far Eastern Federal University, 690090 Vladivostok, Russia
Tananaev I: Ozyorsk Technological Institute, National Research Nuclear University (MEPhI), 456780 Ozyorsk, Russia; School of Natural Sciences, Far Eastern Federal University, 690090 Vladivostok, Russia; Frumkin Institute of Physical Chemistry and Electrochemistry, Ru
Myasoedov B: Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 119991 Moscow, Russia
Vocciante M: Department of Chemistry and Industrial Chemistry, University of Genova, 16146 Genova, Italy [ORCID]
Vershinina E: School of Natural Sciences, Far Eastern Federal University, 690090 Vladivostok, Russia
Krasitskaya S: School of Natural Sciences, Far Eastern Federal University, 690090 Vladivostok, Russia
Tananaev I: Ozyorsk Technological Institute, National Research Nuclear University (MEPhI), 456780 Ozyorsk, Russia; School of Natural Sciences, Far Eastern Federal University, 690090 Vladivostok, Russia; Frumkin Institute of Physical Chemistry and Electrochemistry, Ru
Myasoedov B: Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 119991 Moscow, Russia
Vocciante M: Department of Chemistry and Industrial Chemistry, University of Genova, 16146 Genova, Italy [ORCID]
Journal Name
Energies
Volume
13
Issue
18
Article Number
E4601
Year
2020
Publication Date
2020-09-04
Published Version
ISSN
1996-1073
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Original Submission
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PII: en13184601, Publication Type: Journal Article
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LAPSE:2023.26235
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doi:10.3390/en13184601
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[v1] (Original Submission)
Apr 3, 2023
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