About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Recycling and Environmental Technologies
|
| Presentation Title |
Development of Minimal Waste Process During Extraction of Copper from Heap Leach Residue |
| Author(s) |
Lambie KATHLEEN, Yotamu Hara, Cornwell Rainford Stephen Tepa, Wilfred Mulenga Mwenya |
| On-Site Speaker (Planned) |
Lambie KATHLEEN |
| Abstract Scope |
Heap leach residue from the Copperbelt province in Zambia contain about 0.6 % total copper. Copper is present in both sulphide and oxide minerals. The main gangue constituents in the feedstock are quartz and feldspar. The copper sulphide minerals in the feedstock are tarnished thereby making flotation not easy. Owing to the high demand of copper worldwide, this research focuses on extraction of copper from the heap residue with minimum waste generation. Several techniques such as flotation, physical separation and leaching were employed. By employing bulk flotation via controlled sulphidisation followed by roast – leach of the concentrate, 98 % of the copper was extracted out. The tailings from flotation test works were subjected to high temperature - pressure leaching for extraction potassium and aluminum. |
| Proceedings Inclusion? |
Undecided |