Influence of oxidant concentration on the leaching of flotation tailings in acidic medium
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Date
2025
Authors
Bogdanović, Grozdanka
Marilović, Dragana
Nedelkovski, Vladan
Stevanović, Zoran
Sokić, Miroslav
Journal Title
Journal ISSN
Volume Title
Publisher
Association of Metallurgical Engineers of Serbia (AMES)
Source
Congress Proceedings [Elektronski izvor] - 6th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE Congress 2025, Trebinje, Bosnia and Herzegovina 4-7th June 2025
Volume
Issue
Abstract
The reprocessing of sulphide minerals in flotation tailings is an attractive option for sustainable mine waste management. Conventional mineral processing methods often encounter difficulties when processing tailings, mainly due to factors such as particle size and surface oxidation of minerals. In most cases, copper is extracted from such raw materials using leaching processes. The paper presents an investigation of the leaching of flotation tailings using 0.1 mol/dm3 H2SO4 solution in which ferric ions and hydrogen peroxide play the role of oxidants. The influence of oxidant concentration on the leaching of copper and iron was investigated. It was found that the addition of ferric ions influenced the leaching of copper, with approximately 79% of copper was leached with 5 g/dm3 of Fe(III) ions. It has also been shown that the concentration of hydrogen peroxide affects the leaching of copper and iron. The total copper extraction of 85.31% and iron extraction of 7.66% were achieved with 0.3 mol/dm3 H2O2 during 120 minutes of reaction time.
Description
Keywords
acid leaching, copper, flotation tailings, ferric ions, hydrogen peroxide
Citation
DOI
10.30544/MMESEE92
Scopus
ISSN
ISBN
978-86-87183-34-6
License
ARR