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http://elar.urfu.ru/handle/10995/129328
Название: | Kinetics of Nitric Acid Leaching of Bornite and Chalcopyrite |
Авторы: | Shklyaev, Yu. V. Dizer, O. A. Lugovitskaya, T. N. Golovkin, D. I. Rogozhnikov, D. A. |
Дата публикации: | 2023 |
Издатель: | Уральский федеральный университет Ural Federal University |
Библиографическое описание: | Kinetics of Nitric Acid Leaching of Bornite and Chalcopyrite / Yu. V. Shklyaev, O. A. Dizer, T. N. Lugovitskaya, D. I. Golovkin, D. A. Rogozhnikov // Chimica Techno Acta. — 2023. — Vol. 10, No. 4. — № 202310410. |
Аннотация: | The paper presents a study of the process of nitric acid dissolution of the natural minerals chalcopyrite and bornite. The influence of various parameters, including temperature, nitric acid concentration and particle sizes, on this process was examined. Based on the data obtained, the values of apparent activation energy (57.41 and 42.98 kJ/mol for chalcopyrite and bornite, respectively), empirical orders with respect to nitric acid (1.62 and 1.57 for chalcopyrite and bornite, respectively) and with respect to particle size (–1.16 and –2.53 for chalcopyrite and bornite, respectively) were calculated using the shrinking core model. Generalized kinetic equations for the dissolution process of both minerals were derived. Based on the calculations performed, it was suggested that the dissolution processes of chalcopyrite and bornite under these conditions are limited by internal diffusion. |
Ключевые слова: | COPPER CHALCOPYRITE BORNITE LEACHING NITRIC ACID KINETICS |
URI: | http://elar.urfu.ru/handle/10995/129328 |
Идентификатор РИНЦ: | https://www.elibrary.ru/item.asp?id=60040551 |
ISSN: | 2411-1414 |
DOI: | 10.15826/chimtech.2023.10.4.10 |
Сведения о поддержке: | This work was funded by the Russian Science Foundation Project No. 22-79-10290. Analytical studies were carried out with the financial support of the State Task of the Rus-sian Federation under Grant No. 075-03-2021-051/5 (FEUZ-2021-0017). |
Карточка проекта РНФ: | 22-79-10290 |
Источники: | Chimica Techno Acta. 2023. Vol. 10. № 4 |
Располагается в коллекциях: | Chimica Techno Acta |
Файлы этого ресурса:
Файл | Описание | Размер | Формат | |
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cta-2023-4-11.pdf | 891,85 kB | Adobe PDF | Просмотреть/Открыть |
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