|
ИСТИНА |
Войти в систему Регистрация |
Интеллектуальная Система Тематического Исследования НАукометрических данных |
||
Sorption of cobalt by anion exchangers from solutions for complex processing of rhenium-containing superalloys wasteстатья Исследовательская статья
Дата последнего поиска статьи во внешних источниках: 19 июня 2024 г.
- Авторы: Targanov I.E., Buintseva E.A., Troshkina I.D.
- Журнал: Journal of Advanced Materials and Technologies
- Том: 8
- Номер: 3
- Год издания: 2023
- Издательство: Тамбовский государственный технический университет
- Местоположение издательства: Тамбов
- Первая страница: 217
- Последняя страница: 226
- DOI: 10.17277/jamt.2023.03.pp.217-226
- Аннотация: The possibility of cobalt sorption of by anion exchangers from hydrochloric acid solutions in the presence of nickel was evaluated in the paper. The highest value of sorption capacity was observed in the gel anion exchange resin with pyridinium functional groups (Axionit VPA G.2.4) and the macroporous anion exchange resin with functional groups of secondary and tertiary amine (Indion 850). Processing of cobalt sorption isotherms with Indion 850 and Lewatit MP 800 anion exchangers was carried out using the Langmuir equation with constant values of (7⋅10–2 ± 0.03) and (0.2 ± 0.02) L⋅mg–1, the values of the maximum sorption capacity were (109 ± 5) and (74 ± 3) mg⋅g –1, respectively. The value of the Freundlich constant during the treatment of the sorption isotherm of cobalt with anionite Axionit VPA G.2.4 was (9.6 ± 0.3) mg⋅g –1. The kinetics of cobalt sorption by Axionit VPA G.2.4 and Indion 850 anionites was studied; the kinetic data of cobalt sorption with the highest value of the coefficient of determination R2 are described using the pseudo-second order equation. Using mathematical processing of the kinetic data of cobalt sorption according to the Weber-Morris equation, the intradiffusion nature of sorption was determined. The analysis of the results of the influence ofelements accompanying the complex processing of waste rhenium-containing superalloys – iron, aluminum and chromium – suggests that iron and chromium have a competitive effect on the sorption of cobalt due to the possibility of the formation of their anionic forms in hydrochloric acid solutions for processing secondary rhenium-containing raw materials.
- Добавил в систему: Тарганов Игорь Евгеньевич