Kinetics of leaching of copper concentrates by nitric acid / Tsogtkhangai D.,Mamyachenkov S. V.,Anisimova O. S.,Naboichenko S. S. // RUSSIAN JOURNAL OF NON-FERROUS METALS. - 2011. - V. 52, l. 6. - P. 469-472.

ISSN/EISSN:

1067-8212 / нет данных

Type:

Article

Abstract:

Based on the study of the kinetics of leaching of copper concentrates by nitric acid, the limiting stages, reaction rate constants, activation energies, and general and partial orders of reactions of the components involved have been determined. An effect of films of reaction products on the limiting stage of the leaching of sulfides by nitric acid has been revealed. It has been shown that in the case of high oxidation potentials no films of elementary sulfur and iron oxide are formed, and the rate of the process is controlled by external diffusion.

Author keywords:

copper concentrate; nitric acid; kinetics of leaching; limiting stages; activation energy

DOI:

10.3103/S1067821211060162

Web of Science ID:

ISI:000298969400002

Соавторы в МНС:

Другие поля

Поле	Значение
Month	DEC
Publisher	ALLERTON PRESS INC
Address	18 WEST 27TH ST, NEW YORK, NY 10001 USA
Language	English
Research-Areas	Metallurgy \& Metallurgical Engineering
Web-of-Science-Categories	Metallurgy \& Metallurgical Engineering
ResearcherID-Numbers	Naboichenko, Stanislav/T-4497-2017
ORCID-Numbers	Naboichenko, Stanislav/0000-0003-0838-8372
Funding-Acknowledgement	Federal Target Program ``Scientific and Pedagogical Personnel of Innovative Russia {[}02.740.11.0821]
Funding-Text	This work was supported in part by the Federal Target Program ``Scientific and Pedagogical Personnel of Innovative Russia (2009-2013){''} (state contract no. 02.740.11.0821).
Number-of-Cited-References	3
Usage-Count-Last-180-days	2
Usage-Count-Since-2013	11
Journal-ISO	Russ. J. Non-Ferrous Metals
Doc-Delivery-Number	874PA