On the leachability of copper from copper-iron minerals mixture
Loading...
Date
2025
Authors
Stanković, Velizar
Marković, Miljan
Gorgievski, Milan
Đorđievski, Stefan
Journal Title
Journal ISSN
Volume Title
Publisher
University of Belgrade - Technical Faculty in Bor
Source
Proceedings [Elektronski izvor] - 56th International October Conference on Mining and Metallurgy - IOC 2025, 22-25 October, 2025, Bor Lake, Serbia
Volume
Issue
Abstract
Sulphuric acid leaching of the ore sample from the MCM (Mauritanian Copper Mine) was carried out. The achieved leaching degree was ≤ 38%. To improve copper leachability from the ore, TG (thermogravimetric), DSC (differential scanning calorimetry, and DTA (analyses differential thermal analysis) were conducted on the ore, and XRD (X-ray diffraction) analysis was performed on the leach residue. Thermal analysis has shown that goethite quickly transforms to hematite at ≈ 300 °C. The XRD pattern reveals the presence of four main minerals in the leach residue of the ore sample. Among them, the goethite peaks are the most intense. It seems as if the decomposition of goethite (thermally or chemically) could be a cornerstone in increasing the copper leaching degree. Both pathways were checked, and in both cases, a significant increase in the leaching degree was achieved.
Description
Keywords
Copper leaching, Thermal analysis, XRD pattern, Sulphation
Citation
DOI
10.5937/IOC25323S
Scopus
ISSN
ISBN
978-86-6305-164-5
License
CC-BY-NC-ND