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Metal-Promoted Extraction Deprotonation of Bidentate Organophosphoric Reagents: Recovery of Uranium, Thorium, and Lanthanidesстатья Исследовательская статья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Дата последнего поиска статьи во внешних источниках: 12 сентября 2019 г.
- Авторы: Nataliya Borisova, Safiulina Alfiya M., Alexey Lizunov, Alexandr Semenov, Grigoriev Mikhail S., Reshetova Marina D., Igor Litvinov, Dmitry Tatarinov, Vladimir Fedorovich Mironov
- Журнал: Russian Journal of Inorganic Chemistry, издательство Maik Nauka/Interperiodica Publishing (Russian Federation),
- Том: 64
- Номер: 3
- Год издания: 2019
- Первая страница: 414
- Последняя страница: 422
- Оригинальные версии: Металлопромотируемое экстракционное депротонирование бидентатных фосфорорганических реагентов: извлечение урана, тория и лантанидов
- DOI: 10.1134/S0036023619030057
- Аннотация: The extraction capacities to f elements are studied in a series of bidentate organosphosphoric reagents that contain deprotonatable phenol moieties. The dependence of metal [thorium(IV), lantha-num(III), neodymium(III), and holmium(III)] recovery as a function of nitric acid concentration is represented by curves with a maximum, typical of extraction by monodentate organosphosphoric reagents. The uranium recovery as a function of acid concentration is presented by curves with a minimum, indicating a change in extraction mechanism from ion exchange to solvation. The quantum-chemical modeling of reagent molecules and their complexes with uranyl ion is carried out. The reagents are structurally similar to reagent V, whose structure was determined by single-crystal X-ray diffraction. The results can be used in the hydro-metallurgy of f elements.
- Добавил в систему: Борисова Наталия Евгеньевна