The Behavior of Rare Earth Elements of the Heavy-Medium Group in the Content of the Extract Cyanex®572–TBP in Scrubbing with Nitric Acid
- Авторы: Shulin S.S.1, Galieva G.N.2, Chizhevskaya S.V.1, Semenov A.A.2
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Учреждения:
- Dmitry Mendeleev University of Chemical Technology of Russia
- LLC Laboratory of Innovation Technologies of the Group of Companies of Skygrad
- Выпуск: Том 55, № 2 (2019)
- Страницы: 200-204
- Раздел: Article
- URL: https://journals.rcsi.science/0020-1685/article/view/158650
- DOI: https://doi.org/10.1134/S0020168519020122
- ID: 158650
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Аннотация
The behavior of individual rare earth elements of the heavy-medium group (HMREE) in the composition of extremely loaded mixture of extractants of Cyanex®572–TBP in the conditions of scrubbing with solutions of nitric acid without rare earths in extraction separation of the concentrate of MREE is discussed. The effect of the concentration of nitric acid in scrubbing solutions on the degree of stripping of the sum and individual HMREE has been studied. The possibility of extraction separation for the lines of Tb–Gd, Dy–Tb, Ho–Dy, and Er–Ho for scrubbing solutions containing less than 0.6 М nitric acid has been shown. The results of the study have been checked on a model counterflow cascade of extractors.
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Об авторах
S. Shulin
Dmitry Mendeleev University of Chemical Technology of Russia
Автор, ответственный за переписку.
Email: ShulinSergei@yandex.ru
Россия, Moscow, 125047
G. Galieva
LLC Laboratory of Innovation Technologies of the Group of Companies of Skygrad
Email: ShulinSergei@yandex.ru
Россия, Korolev, 141090
S. Chizhevskaya
Dmitry Mendeleev University of Chemical Technology of Russia
Email: ShulinSergei@yandex.ru
Россия, Moscow, 125047
A. Semenov
LLC Laboratory of Innovation Technologies of the Group of Companies of Skygrad
Email: ShulinSergei@yandex.ru
Россия, Korolev, 141090
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