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Highly efficient slag cleaning — latest results from pilot-scale tests

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REWAS 2013

Abstract

Modern life would not be possible without copper. The high worldwide demand for copper raises several questions for the copper industry in terms of economic and ecological considerations regarding the main product copper as well as the by-product iron silicate. The future challenge for copper smelters is to increase the yield by reducing the copper losses and to obtain the iron-silicate as a marketable by-product. This can be achieved by further treatment of the slag. A newly developed slag cleaning technology has been evaluated in a specially designed pilot furnace integrated into an industrial process. Applying a magnetic field across a DC field improves stirring, thereby fostering the settling of entrained copper droplets. The results showed that a 30 % to 50 % reduction of the Cu content in the iron silicate product is feasible, depending on the composition of the incoming copper slag. This makes the process economically attractive.

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References

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Author information

Authors and Affiliations

  1. SMS Siemag AG, Eduard-Schloemann-Strasse 4, Düsseldorf, 40237, Germany

    Roland König, Axel Weyer & Dr. Rolf Degel

  2. Aurubis AG, Hovestrasse 50, Hamburg, 20539, Germany

    Jürgen Schmidl, Dr. Harald Kadereit & Dr. Andreas Specht

Authors
  1. Roland König
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  2. Axel Weyer
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  3. Dr. Rolf Degel
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  4. Jürgen Schmidl
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  5. Dr. Harald Kadereit
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  6. Dr. Andreas Specht
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Editor information

Editors and Affiliations

  1. SINTEF, Trondheim, Norway

    Anne Kvithyld (a senior research scientist) (a senior research scientist)

  2. Umicore Precious Metals Refining, Hoboken, Belgium

    Christina Meskers (leads the business development and marketing team) (leads the business development and marketing team)

  3. Energy Systems Division, Argonne National Laboratory, USA

    Gregory Krumdick (principal systems engineer) (principal systems engineer)

  4. Kroll Institute for Extractive Metallurgy in Metallurgical & Materials Engineering, Colorado School of Mines, USA

    Brajendra Mishra (professor and the Assoc. Director) (professor and the Assoc. Director)

  5. Outotec Finland, Finland

    Markus Reuter (Director of Technology Management, Adjunct Professor, Professorial Fellow, Guest Professor, a professor) (Director of Technology Management, Adjunct Professor, Professorial Fellow, Guest Professor, a professor)

  6. Aalto University, Finland

    Markus Reuter (Director of Technology Management, Adjunct Professor, Professorial Fellow, Guest Professor, a professor) (Director of Technology Management, Adjunct Professor, Professorial Fellow, Guest Professor, a professor)

  7. University of Melbourne, Australia

    Markus Reuter (Director of Technology Management, Adjunct Professor, Professorial Fellow, Guest Professor, a professor) (Director of Technology Management, Adjunct Professor, Professorial Fellow, Guest Professor, a professor)

  8. Central South University Changsha, China

    Markus Reuter (Director of Technology Management, Adjunct Professor, Professorial Fellow, Guest Professor, a professor) (Director of Technology Management, Adjunct Professor, Professorial Fellow, Guest Professor, a professor)

  9. TU Delft, Netherlands

    Markus Reuter (Director of Technology Management, Adjunct Professor, Professorial Fellow, Guest Professor, a professor) (Director of Technology Management, Adjunct Professor, Professorial Fellow, Guest Professor, a professor)

  10. University of Stellenbosch, South Africa

    Markus Reuter (Director of Technology Management, Adjunct Professor, Professorial Fellow, Guest Professor, a professor) (Director of Technology Management, Adjunct Professor, Professorial Fellow, Guest Professor, a professor)

  11. Saint-Gobain Innovative Materials R&D, Belgium

    Cong Wang (Senior Research Engineer) (Senior Research Engineer)

  12. Missouri University of Science and Technology, USA

    Mark Schlesinger (Professor of Metallurgical Engineering) (Professor of Metallurgical Engineering)

  13. Golisano Institute for Sustainability, USA

    Gabrielle Gaustad Ph.D. (Assistant Professor) (Assistant Professor)

  14. Rochester Institute of Technology, USA

    Gabrielle Gaustad Ph.D. (Assistant Professor) (Assistant Professor)

  15. Worcester Polytechnic Institute (WPI), USA

    Diana Lados (Associate Professor, Founding Director) (Associate Professor, Founding Director)

  16. Integrative Materials Design Center (iMdc), USA

    Diana Lados (Associate Professor, Founding Director) (Associate Professor, Founding Director)

  17. Argonne National Laboratory, USA

    Jeffrey Spangenberger (Engineering Specialist, Senior) (Engineering Specialist, Senior)

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© 2013 TMS (The Minerals, Metals & Materials Society)

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König, R., Weyer, A., Degel, R., Schmidl, J., Kadereit, H., Specht, A. (2013). Highly efficient slag cleaning — latest results from pilot-scale tests. In: Kvithyld, A., et al. REWAS 2013. Springer, Cham. https://doi.org/10.1007/978-3-319-48763-2_1

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