Optimal Monazite Concentration Processes for the Extraction of Uranium and Thorium Fuel Material
| Autor: | Boris F. Myasoedov, Elizaveta Vershinina, Ivan G. Tananaev, Svetlana Krasitskaya, Olga Fedorova, Marco Vocciante |
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| Rok vydání: | 2020 |
| Předmět: |
separation
Control and Optimization 020209 energy Inorganic chemistry Energy Engineering and Power Technology chemistry.chemical_element rare earth elements 02 engineering and technology 010403 inorganic & nuclear chemistry lcsh:Technology 01 natural sciences thorium uranium chemistry.chemical_compound Nitric acid monazite 0202 electrical engineering electronic engineering information engineering Tributyl phosphate Electrical and Electronic Engineering Engineering (miscellaneous) Dissolution Autoclave leaching Extraction Flow chart Monazite Radium Rare earth elements Separation Thorium Uranium lcsh:T Renewable Energy Sustainability and the Environment Extraction (chemistry) autoclave leaching 0104 chemical sciences Thorium fuel cycle radium flow chart chemistry extraction Energy (miscellaneous) |
| Zdroj: | Energies Volume 13 Issue 18 Energies, Vol 13, Iss 4601, p 4601 (2020) |
| ISSN: | 1996-1073 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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