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    Crystallization of sodalite particles under Bayer-type conditions

    191978_191978 Text.pdf (2.597Mb)
    Access Status
    Open access
    Authors
    Radomirovic, Tomoko
    Smith, P.
    Southam, Daniel
    Jones, Franca
    Date
    2013
    Type
    Journal Article
    
    Metadata
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    Citation
    Radomirovic, Tomoko and Smith, Peter and Southam, Daniel and Tashi, Sonam and Jones, Franca. 2013. Crystallization of sodalite particles under Bayer-type conditions. Hydrometallurgy. 137: pp. 84-91.
    Source Title
    Hydrometallurgy
    DOI
    10.1016/j.hydromet.2013.05.006
    ISSN
    0304386X
    Remarks

    NOTICE: this is the author’s version of a work that was accepted for publication in Hydrometallurgy. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Hydrometallurgy, Volume 137, May 2013, Pages 84-91. http://doi.org/10.1016/j.hydromet.2013.05.006

    URI
    http://hdl.handle.net/20.500.11937/38058
    Collection
    • Curtin Research Publications
    Abstract

    The formation of desilication products (DSPs) is an important process in the pre-desilication step of the Bayer process, helping to limit the potential for unwanted scale on the heat exchangers by limiting the amount of silicate in the Bayer liquor. These solids generally have a crystalline sodalite structure, however, the fundamentals of crystallization are still to be fully understood. We show in this work that the DSP formed is initially amorphous when solution silicate is used. When kaolinite solids are present DSP is initially heterogeneously nucleated on the kaolinite but there is also a secondary nucleation event that occurs.

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