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Extraction of Scandium (Sc) Using a Task-Specific Ionic Liquid Protonated Betaine Bis(Trifluoromethylsulfonyl)Imide [Hbet][Tf2N]

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Extraction 2018

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

Abstract

The extraction of scandium from its oxide with a task specific ionic liquid [Hbet][Tf2N] offers potential advantages of lower energy consumption, recycling of the extractant and reduced environmental impact compared to conventional methods. In this paper, the influence of reaction temperature , solid to liquid ratio and water to the ionic liquid ratio on the extraction of scandium from a synthetic scandium oxide (Sc2O3) system was studied. The influence of investigated parameters on leaching was very significant as approximately 98% scandium was extracted from its oxide after 72 h. Furthermore, the ionic liquid also selectively extracted 47% scandium after 48 h from a mixture of pure metal oxides containing oxides of tantalum , niobium , and scandium . The research demonstrated the potential of [Hbet][Tf2N] to selectively extract scandium from columbite processing tailings and other scandium bearing ores like Ixiolite, Heftetjernite and Tantalite which predominately contain tantalum and niobium .

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Acknowledgements

The authors would like to thank Michelle Kange, Michael Gustavo and Jenilee Ferreira for their assistance with some of the experimental work.

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Authors and Affiliations

  1. Faculty of Engineering and the Built Environment, School of Chemical and Metallurgical Engineering, University of the Witwatersrand, Johannesburg, South Africa

    G. Mawire & L. van Dyk

Authors
  1. G. Mawire
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  2. L. van Dyk
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Corresponding author

Correspondence to G. Mawire .

Editor information

Editors and Affiliations

  1. Kingston Process Metallurgy Inc., Kingston, Canada

    Boyd R. Davis

  2. Missouri University of Science and Technology, Rolla, USA

    Michael S. Moats

  3. Rio Tinto Kennecott Utah Copper Corporation, South Jordan, USA

    Shijie Wang

  4. RHI Magnesita, Leoben, Austria

    Dean Gregurek

  5. BBA Inc., Montreal, Canada

    Joël Kapusta

  6. Extractive Metallurgy Consultant, Kingston, Canada

    Thomas P. Battle

  7. Missouri University of Science and Technology, Rolla, USA

    Mark E. Schlesinger

  8. Aurubis, Hamburg, Germany

    Gerardo Raul Alvear Flores

  9. University of Queensland, Queensland, Australia

    Evgueni Jak

  10. XPS-Glencore, Falconbridge, Canada

    Graeme Goodall

  11. University of Utah, Salt Lake City, USA

    Michael L. Free

  12. University of British Columbia, Vancouver, Canada

    Edouard Asselin

  13. University of Lorraine, Vandœuvre-lès-Nancy, France

    Alexandre Chagnes

  14. University of British Columbia, Vancouver, Canada

    David Dreisinger

  15. Newmont Mining, Elko, USA

    Matthew Jeffrey

  16. University of Arizona, Tucson, USA

    Jaeheon Lee

  17. Miller Metallurgical Services Pty Ltd., Brisbane, Australia

    Graeme Miller

  18. University of Cape Town, Rondebosch, Australia

    Jochen Petersen

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

    Virginia S. T. Ciminelli

  20. Shanghai University, Shanghai, China

    Qian Xu

  21. MetNetH20 Inc., Peterborough, Canada

    Ronald Molnar

  22. Hatch, Mississauga, Canada

    Jeff Adams

  23. University of British Columbia, Vancouver, Canada

    Wenying Liu

  24. SGS Minerals, Lakefield, Canada

    Niels Verbaan

  25. J.R. Goode and Associates Metallurgical Consulting, Toronto, Canada

    John Goode

  26. Avalon Rare Metals Inc., Toronto, Canada

    Ian M. London

  27. University of Toronto, Toronto, Canada

    Gisele Azimi

  28. SGS Minerals, Lakefield, Canada

    Alex Forstner

  29. Newmont Mining, Greenwood Village, USA

    Ronel Kappes

  30. Newmont Mining Corporation, Greenwood village, USA

    Tarun Bhambhani

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Mawire, G., van Dyk, L. (2018). Extraction of Scandium (Sc) Using a Task-Specific Ionic Liquid Protonated Betaine Bis(Trifluoromethylsulfonyl)Imide [Hbet][Tf2N]. In: Davis, B., et al. Extraction 2018. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-95022-8_230

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