Leaching of covellite in ionic liquid solution

Marilović, Dragana; Bogdanović, Grozdanka

doi:10.5937/IOC25221M

Conference Object Open access M33

Marilovic et al. - IOC 2025.pdf (2.87MB)

2025

Marilović, Dragana
Bogdanović, Grozdanka

University of Belgrade - Technical Faculty in Bor

Proceedings [Elektronski izvor] - 56th International October Conference on Mining and Metallurgy - IOC 2025, 22-25 October, 2025, Bor Lake, Serbia

221

224

English

M33 - Conference paper at an international conference, printed in full

Covellite is refractory to conventional hydrometallurgical processes, therefore alternative methods are required to improve copper extraction. The aim of this work was to investigate the leaching of covellite concentrate in an ionic liquid solution ([bmim]HSO4) with hydrogen peroxide as a strong oxidizing agent. The results indicate that the presence of hydrogen peroxide significantly improves copper extraction due to its strong oxidizing ability, which facilitates the dissolution of sulfide species. Although only preliminary data are presented, the results confirm the potential of ionic liquids in combination with oxidizing agents for the treatment of copper sulfide concentrates. When covellite concentrate was leached in an ionic liquid solution without oxidants, the leaching degree of copper was 1.03 %. The results showed that the maximum dissolution of copper in the presence of 3.0 mol/dm3 hydrogen peroxide was 28.97 %. This approach provides a basis for the development of more environmentally friendly and efficient leaching processes for complex copper ores and concentrates.

Covellite, Ionic liquid, Hydrogen peroxide, Leaching

DOI

10.5937/IOC25221M

ISBN

978-86-6305-164-5

URI

https://ioc.tfbor.bg.ac.rs/public/2025/Proce...
https://repozitorijum.tfbor.bg.ac.rs/handle/...

Scopus

OpenCitations

dc.rights.license	CC-BY-NC-ND
dc.identifier.uri	https://ioc.tfbor.bg.ac.rs/public/2025/Proceedings_IOC_2025.pdf
dc.identifier.uri	https://repozitorijum.tfbor.bg.ac.rs/handle/123456789/6038
dc.description.abstract	Covellite is refractory to conventional hydrometallurgical processes, therefore alternative methods are required to improve copper extraction. The aim of this work was to investigate the leaching of covellite concentrate in an ionic liquid solution ([bmim]HSO4) with hydrogen peroxide as a strong oxidizing agent. The results indicate that the presence of hydrogen peroxide significantly improves copper extraction due to its strong oxidizing ability, which facilitates the dissolution of sulfide species. Although only preliminary data are presented, the results confirm the potential of ionic liquids in combination with oxidizing agents for the treatment of copper sulfide concentrates. When covellite concentrate was leached in an ionic liquid solution without oxidants, the leaching degree of copper was 1.03 %. The results showed that the maximum dissolution of copper in the presence of 3.0 mol/dm3 hydrogen peroxide was 28.97 %. This approach provides a basis for the development of more environmentally friendly and efficient leaching processes for complex copper ores and concentrates.
dc.language.iso	en
dc.publisher	University of Belgrade - Technical Faculty in Bor
dc.source	Proceedings [Elektronski izvor] - 56th International October Conference on Mining and Metallurgy - IOC 2025, 22-25 October, 2025, Bor Lake, Serbia
dc.subject	Covellite
dc.subject	Ionic liquid
dc.subject	Hydrogen peroxide
dc.subject	Leaching
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.title	Leaching of covellite in ionic liquid solution
dc.type	conferenceObject
dc.type.version	publishedVersion
dc.citation.spage	221
dc.citation.epage	224
dc.citation.rank	M33
dc.creator	Marilović, Dragana
dc.creator	Bogdanović, Grozdanka
dc.date.accessioned	2025-12-08T09:35:49Z
dc.date.available	2025-12-08T09:35:49Z
dc.date.issued	2025
dc.identifier.isbn	978-86-6305-164-5
dc.identifier.doi	10.5937/IOC25221M


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