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Effect of Pretreatment During Leaching of Chambishi Copper–Cobalt Air Roast–Leach Calcine Residue

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Characterization of Minerals, Metals, and Materials 2024 (TMS 2024)

Part of the book series: The Minerals, Metals & Materials Series ((MMMS))

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Abstract

Copper–cobalt calcine leach tailings material from Chambishi township of Copperbelt province of Zambia is refractory in nature due to the 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.

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Acknowledgements

The authors would like to thank the National Science and Technology Council (NSTC) for the financial support.

Author information

Authors and Affiliations

  1. The Copperbelt University, P.O. Box, 21692, Kitwe, Zambia

    Alexander Oniel Noel Old, Yotamu Rainford Stephen Hara, Phenny Mwaanga, Geshom Mwandila, Bawemi Sichinga Mtonga & Emmanuel Chibwe

Authors
  1. Alexander Oniel Noel Old
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  2. Yotamu Rainford Stephen Hara
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  3. Phenny Mwaanga
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  4. Geshom Mwandila
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  5. Bawemi Sichinga Mtonga
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  6. Emmanuel Chibwe
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Corresponding author

Correspondence to Yotamu Rainford Stephen Hara .

Editor information

Editors and Affiliations

  1. Central South University, Changsha, China

    Zhiwei Peng

  2. Baowu Ouyeel Co. Ltd., Shanghai, China

    Mingming Zhang

  3. CanmetMATERIALS, Hamilton, ON, Canada

    Jian Li

  4. Michigan Technological University, Houghton, MI, USA

    Bowen Li

  5. Military Institute of Engineering, Rio de Janeiro, Brazil

    Sergio Neves Monteiro

  6. Chem Service Inc., West Chester, PA, USA

    Rajiv Soman

  7. Michigan Technological University, Houghton, MI, USA

    Jiann-Yang Hwang

  8. Middle East Technical University, Ankara, Türkiye

    Yunus Eren Kalay

  9. University of New South Wales, Canberra, ACT, Australia

    Juan P. Escobedo-Diaz

  10. Los Alamos National Laboratory, Los Alamos, NM, USA

    John S. Carpenter

  11. Army Research Office, Durham, NC, USA

    Andrew D. Brown

  12. Amman, Jordan

    Shadia Ikhmayies

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Old, A.O.N., Hara, Y.R.S., Mwaanga, P., Mwandila, G., Mtonga, B.S., Chibwe, E. (2024). Effect of Pretreatment During Leaching of Chambishi Copper–Cobalt Air Roast–Leach Calcine Residue. In: Peng, Z., et al. Characterization of Minerals, Metals, and Materials 2024. TMS 2024. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-031-50304-7_10

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