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Development and Verification of a Scheme for Fractionation of HAWs with TODGA Extractive Agent in a “Light” Diluentстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 22 декабря 2021 г.
- Авторы: Mamchich M.V., Goletsky N.D., Tkachenko L.I., Viznyi A.N., Naumov A.A., Belova E.V., Puzikov E.A., Zil’berman B.Ya
- Журнал: Radiochemistry
- Том: 63
- Номер: 4
- Год издания: 2021
- Издательство: Pleiades Publishing, Inc.
- Местоположение издательства: New York, USA
- Первая страница: 462
- Последняя страница: 469
- DOI: 10.1134/s1066362221040093
- Аннотация: The technology of fractionation of trans-plutonium elements (TPEs) and REEs with the use of 0.15 M TODGA (tetraoctylamide of diglycolic acid) + 5% n-decanol in Isopar-M as extractive agent was tested on high-activity raffinates characteristic of high-activity wastes formed in processing of spent fuel from nuclear power plants. The mixture satisfies the explosion-and-fire safety requirements and possesses the necessary hydrodynamic characteristics. A >99.99% recovery was reached in the extraction stage. In the re-extraction stage of TPEs, it was possible to provide their nearly full purification to remove yttrium, with 70% of lanthanides remaining in the TPE fraction. All the metals were quantitatively recovered from the organic phase in the stage of REE re-extraction. The increase in the degree of separation of TPEs and REEs is provided by lowering the concentration of the extractive agent (TODGA). The radiation hardness of the mixture was examined.
- Добавил в систему: Смирнов Антон Витальевич