| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Characterization of Minerals, Metals and Materials 2024: Process-Structure-Property Relations and New Technologies
|
| Presentation Title |
Effect of Pretreatment During Leaching of Chambishi Copper - Cobalt Air Roast – Leach Calcine Residue |
| Author(s) |
Yotamu Hara, Alexander Noel Old, Phenny Mwaanga, Gershom Mwandila, Bawemi Sichinga Mtonga |
| On-Site Speaker (Planned) |
Alexander Noel Old |
| Abstract Scope |
Copper – cobalt calcine leach tailings material from Chambishi township of Copperbelt province of Zambia are refractory in nature due to presence of copper / cobalt silicate and residual sulphide minerals. With the aim of solubilizing copper and cobalt, the material was pre-treated by roasting in air alone and, combination of air and elemental sulphur. As-received material was characterized by XRD and SEM techniques. Leaching without pre-treatment gave poor recoveries (< 45 %) for copper and cobalt. Roasting of the feed material in air alone had no and little effect on improving leach efficiencies of copper and cobalt, respectively. On the other hand, copper and cobalt recoveries of 70 and 80 % were obtained after roasting the feed material with elemental sulphur. The effects of roasting temperature and dosing of elemental sulphur were studied. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Copper / Nickel / Cobalt, |