A novel approach to copper leaching from chalcopyrite with sulphuric acid solutions
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Date
2023
Authors
Bogdanović, Grozdanka
Petrović, Sanja
Journal Title
Journal ISSN
Volume Title
Publisher
Association of Metallurgical Engineers of Serbia (AMES)
Source
Congress Proceedings - 5th Metallurgical & Materials Engineering Congress of South-East Europe MME SEE Congress 2023, Trebinje, Bosnia and Herzegovina 7-10th June 2023, 2023, 44-48
Volume
Issue
Abstract
Chalcopyrite is the most abundant copper sulphide mineral. Extensive research in the field of hydrometallurgy was conducted with the aim of developing efficient processes for leaching copper from chalcopyrite concentrates and lowgrade ores and/or complex chalcopyrite-containing ores. Chalcopyrite leaching in sulphuric acid solution was most studied with Fe (III) ions as an oxidant, with or without the assistance of microorganisms due to the simplicity and low cost of the process.
In recent years, there has been increased interest in the possible use of different oxidizing reagents (hydrogen peroxide, ozone, chromium (VI) ions, etc.) for chalcopyrite leaching, with research being conducted at the laboratory level, probably due to their higher cost. The addition of organic compounds, such as alcohols (methanol, ethanol, ethylene glycol, isopropanol), in the acidic aqueous solution of hydrogen peroxide and sulfuric acid, had increased chalcopyrite leaching. The aim of this paper is to present a brief overview of the oxidative leaching of chalcopyrite by means of hydrogen peroxide in sulphuric acid solutions and with the presence of alcohols.
Description
Keywords
leaching, chalcopyrite, sulphuric acid, hydrogen peroxide, alcohols
Citation
DOI
Scopus
ISSN
ISBN
978-86-87183-32-2
License
ARR