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Production of Zinc Oxide from Willemite Containing Ore from Kabwe Town in Zambia

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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

High-purity zinc oxide (> 99 weight %) was obtained from complex zinc silicate ore of Kabwe town of the Central province of Zambia. The material was leached with sulphuric acid at varying pH to form zinc sulphate. There was partial dissolution of silica during leaching. The following parameters were studied; leaching temperature, pH, and solid to liquid ratio. Leach efficiency of 97% was obtained. Zinc was recovered from solution via precipitation with sodium hydroxide, magnesium oxide, and oxalic acid. Low-grade zinc oxide was obtained during precipitation with sodium hydroxide and magnesium oxide owing to co-precipitation of SiO2. On the other hand, there was no co-precipitation of SiO2 during precipitation with oxalic acid such that high-purity zinc oxalate was obtained. The precipitated zinc oxalate was heated up at 500 °C to obtain zinc oxide with purity of more than 99%.

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Author information

Authors and Affiliations

  1. Copperbelt University, Kitwe, Zambia

    Yotamu Rainford Stephen Hara, Daliso Tembo & Alexander Oniel Noel Old

  2. YCS Sustainable Solutions Limited, Kitwe, Zambia

    Yotamu Rainford Stephen Hara, Rainford Hara, Ronald Hara & Stephen Parirenyatwa

Authors
  1. Yotamu Rainford Stephen Hara
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  2. Daliso Tembo
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  3. Rainford Hara
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  4. Ronald Hara
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  5. Alexander Oniel Noel Old
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  6. Stephen Parirenyatwa
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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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© 2024 The Minerals, Metals & Materials Society

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Hara, Y.R.S., Tembo, D., Hara, R., Hara, R., Old, A.O.N., Parirenyatwa, S. (2024). Production of Zinc Oxide from Willemite Containing Ore from Kabwe Town in Zambia. 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_14

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