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Kinetics of nitric acid leaching of bornite and chalcopyrite. / Shklyaev, Yuri; Dizer, Oleg; Lugovitskaya, Tatiana и др.
в: Chimica Techno Acta, Том 10, № 4, 202310410, 2023.

Результаты исследований: Вклад в журналСтатьяРецензирование

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Shklyaev Y, Dizer O, Lugovitskaya T, Golovkin D, Rogozhnikov D. Kinetics of nitric acid leaching of bornite and chalcopyrite. Chimica Techno Acta. 2023;10(4):202310410. doi: 10.15826/chimtech.2023.10.4.10

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BibTeX

@article{3a6ea669bf0749d8b80f81fe03db31a2,
title = "Kinetics of nitric acid leaching of bornite and chalcopyrite",
abstract = "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.",
author = "Yuri Shklyaev and Oleg Dizer and Tatiana Lugovitskaya and Dmitry Golovkin and Denis Rogozhnikov",
note = "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 Russian Federation under Grant No. 075-03-2021-051/5 (FEUZ-2021-0017).",
year = "2023",
doi = "10.15826/chimtech.2023.10.4.10",
language = "English",
volume = "10",
journal = "Chimica Techno Acta",
issn = "2409-5613",
publisher = "Издательство Уральского университета",
number = "4",

}

RIS

TY - JOUR

T1 - Kinetics of nitric acid leaching of bornite and chalcopyrite

AU - Shklyaev, Yuri

AU - Dizer, Oleg

AU - Lugovitskaya, Tatiana

AU - Golovkin, Dmitry

AU - Rogozhnikov, Denis

N1 - 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 Russian Federation under Grant No. 075-03-2021-051/5 (FEUZ-2021-0017).

PY - 2023

Y1 - 2023

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=85179100961

UR - https://elibrary.ru/item.asp?id=60040551

U2 - 10.15826/chimtech.2023.10.4.10

DO - 10.15826/chimtech.2023.10.4.10

M3 - Article

VL - 10

JO - Chimica Techno Acta

JF - Chimica Techno Acta

SN - 2409-5613

IS - 4

M1 - 202310410

ER -

ID: 49829836