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    Recovery of nickel and cobalt from nitrate-based nickel laterite leach solutions using direct solvent extraction

    241707_HuttonAshkenny 2015 corrected Aug2016.pdf (4.347Mb)
    Access Status
    Open access
    Authors
    Hutton-Ashkenny, Michael Douglas
    Date
    2015
    Supervisor
    Dr Don Ibana
    Dr Keith Barnard
    Type
    Thesis
    Award
    PhD
    
    Metadata
    Show full item record
    School
    Department of Metallurgical and Minerals Engineering
    URI
    http://hdl.handle.net/20.500.11937/174
    Collection
    • Curtin Theses
    Abstract

    A direct solvent extraction system was developed to recover nickel and cobalt from nitrate-based nickel laterite liquors, as opposed to traditional sulphate-based liquors. The development and optimisation of promising solvent systems is reported, along with a comparison of three potential options to inform recommendations for commercial applications. Finally, an investigation into the chemical stability of the solvent extraction reagents is detailed to determine if a nitrate-based process affected reagent stability compared to a sulphate-based process.

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