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8th International Symposium on High-Temperature Metallurgical Processing pp 269–278Cite as

Improving Separation of Cu–Fe from Copper Slag by Modification of the Molten Slag

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

Abstract

Iron mainly exists as the magnetite and fayalite, while copper is primarily dispersed in the form of fine matte particles in the copper slag , which is difficult to recover by conventional separation techniques. In this paper, the feasibility of an integrated technological route to improve beneficiation of copper and iron components from copper slag through the modification of molten slag was investigated, and the results shows that: the copper grade of rougher copper concentrate was increased from 6.43 to 11.04%, iron recovery from magnetic separation was increased significantly from 32.40 to 63.36%, and other evaluation indexes were changed slightly, in comparison with unmodified copper slag. Meanwhile, the grains of the target minerals in the modified slag grew considerably to a mean size >50 μm after slow cooling. Ultimately, the beneficiation efficiency of copper and iron was improved because of the ease with which the target minerals were liberated.

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Author information

Authors and Affiliations

  1. School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China

    Zheng-qi Guo, De-qing Zhu, Jian Pan & Feng Zhang

Authors
  1. Zheng-qi Guo
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  2. De-qing Zhu
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  3. Jian Pan
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  4. Feng Zhang
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Corresponding author

Correspondence to Zheng-qi Guo .

Editor information

Editors and Affiliations

  1. Michigan Technological University , Houghton, Michigan, USA

    Jiann-Yang Hwang

  2. Central South University , Changsha, Hunan, China

    Tao Jiang

  3. Proval Partners SA , Lausanne, Switzerland

    Mark William Kennedy

  4. Istanbul Technical University , Istanbul, Turkey

    Onuralp Yücel

  5. Dept of Materials Science and Eng, Carnegie Mellon Univ Dept of Materials Science and Eng, Pittsburgh, Pennsylvania, USA

    P. Chris Pistorius

  6. Universidade Federal de Minas Gerais , Belo Horizonte, Brazil

    Varadarajan Seshadri

  7. The University of Queensland , Brisbane, Australia

    Baojun Zhao

  8. RHI AG , Leoben, Austria

    Dean Gregurek

  9. Atilim University , Ankara, Turkey

    Ender Keskinkilic

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© 2017 The Minerals, Metals & Materials Society

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Guo, Zq., Zhu, Dq., Pan, J., Zhang, F. (2017). Improving Separation of Cu–Fe from Copper Slag by Modification of the Molten Slag. In: Hwang, JY., et al. 8th International Symposium on High-Temperature Metallurgical Processing. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-51340-9_27

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