Leaching of covellite in ionic liquid solution

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dc.citation.epage224
dc.citation.rankM33
dc.citation.spage221
dc.contributor.authorMarilović, Dragana
dc.contributor.authorBogdanović, Grozdanka
dc.date.accessioned2025-12-08T09:35:49Z
dc.date.available2025-12-08T09:35:49Z
dc.date.issued2025
dc.description.abstractCovellite 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.identifier.doi10.5937/IOC25221M
dc.identifier.isbn978-86-6305-164-5
dc.identifier.urihttps://ioc.tfbor.bg.ac.rs/public/2025/Proceedings_IOC_2025.pdf
dc.identifier.urihttps://repozitorijum.tfbor.bg.ac.rs/handle/123456789/6038
dc.language.isoen
dc.publisherUniversity of Belgrade - Technical Faculty in Bor
dc.rights.licenseCC-BY-NC-ND
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.sourceProceedings [Elektronski izvor] - 56th International October Conference on Mining and Metallurgy - IOC 2025, 22-25 October, 2025, Bor Lake, Serbia
dc.subjectCovellite
dc.subjectIonic liquid
dc.subjectHydrogen peroxide
dc.subjectLeaching
dc.titleLeaching of covellite in ionic liquid solution
dc.typeconferenceObject
dc.type.versionpublishedVersion

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