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    Investigating the impact of anatase on the dissolution of boehmite

    200174_200174.pdf (976.8Kb)
    Access Status
    Open access
    Authors
    Ireland, Myra
    Wang, Xiaodong
    Radomirovic, Tomoko
    Smith, P.
    Jones, Franca
    Date
    2014
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Ireland, M. and Wang, X. and Radomirovic, T. and Smith, P. and Jones, F. 2014. Investigating the impact of anatase on the dissolution of boehmite. Hydrometallurgy. 147-148: pp. 246-254.
    Source Title
    Hydrometallurgy
    DOI
    10.1016/j.hydromet.2014.06.002
    ISSN
    0304-386X
    School
    Department of Applied Chemistry
    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, Vol. 147-148. (2014). http://doi.org/10.1016/j.hydromet.2014.06.002

    URI
    http://hdl.handle.net/20.500.11937/14642
    Collection
    • Curtin Research Publications
    Abstract

    The dissolution of boehmite in synthetic Bayer liquors is inhibited in the presence of anatase. It has been suggested both by us and others (e.g. Loan et al., 2005) that dissolved titanate adsorbs onto the surface of the boehmite limiting its dissolution. This manuscript reports on digestion, X-ray diffraction (XRD) and transmission electron microscopy (TEM) investigations of boehmite solids partially dissolved in synthetic Bayer liquor in the presence of anatase. Energy filtered transmission electron microscopy (EFTEM) is used to obtain elemental distribution maps, which support the adsorption hypothesis and show enrichment of titanium on the boehmite crystals. Interestingly, the aluminium also becomes associated with some of the Ti-rich particles.

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