Intensification of copper leaching from heaps using biological oxidation

Autor:	Koizhanova, A. K., Magomedov, D. R., Tastanov, E. A., Bagdaulet Kenzhaliyev, Sedelnikova, G. V., Berkinbayeva, A. N.
Jazyk:	angličtina
Rok vydání:	2022
Předmět:	inorganic chemicals hydrometallurgy copper leaching biochemistry ferrooxidans bacteria complex mixtures
Zdroj:	Metalurgija Volume 61 Issue 3-4 Scopus-Elsevier
ISSN:	1334-2576 0543-5846
Popis:	The article presents the results of experiments intended to leach copper from ore heaps of complex mineral composition biochemically. The processing of such heaps is complicated due to the presence of oxidized copper minerals among significant fragments of sulfide minerals and iron-calcium silicates. This factor does not allow to perform standard sulfuric acid leaching effectively without the use of additional oxidation catalysts, or to apply beneficiation methods for that kind of raw materials. Use of A. Ferrooxidans bacteria adapted to the composition of the copper dump, as a bio-catalytic agent, significantly accelerates the leaching process and increases the copper recovery degree into the productive solution.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::b7fee360dacee7900665609a9985c438 https://hrcak.srce.hr/file/397155 Zobrazit plný text záznamu Plný text ve formátu PDF