Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item

    Modelling of multicomponent reactive transport in finite columns — Application to gold recovery using iodide ligands

    Access Status
    Fulltext not available
    Authors
    Karrech, A.
    Attar, M.
    Oraby, Elsayed
    Eksteen, Jacques
    Elchalakani, M.
    Seibi, A.
    Date
    2018
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Karrech, A. and Attar, M. and Oraby, E. and Eksteen, J. and Elchalakani, M. and Seibi, A. 2018. Modelling of multicomponent reactive transport in finite columns — Application to gold recovery using iodide ligands. Hydrometallurgy. 178: pp. 43-53.
    Source Title
    Hydrometallurgy
    DOI
    10.1016/j.hydromet.2018.03.020
    ISSN
    0304-386X
    School
    WASM: Minerals, Energy and Chemical Engineering (WASM-MECE)
    URI
    http://hdl.handle.net/20.500.11937/67292
    Collection
    • Curtin Research Publications
    Abstract

    Existing semi-analytical solutions to the problem of reactive transport in porous media are either restricted to single aqueous species, to decoupled processes or to infinite/semi-infinite domains. Our approach addresses the problem of multicomponent reactive transport in finite columns, where coupling feedbacks emanating from the non-equilibrium thermodynamics of chemical species are taken into account. The main purpose of this research work is to investigate the in-situ leaching of precious metals—a technique that is expected to be relevant to the Earth's regolith consisting of fragmented and/or weathered rocks where permeability is sufficiently high for reactive transport. Producing precious metals from such areas may be beneficial especially when the grade is too low for conventional mining techniques to be applicable. The proposed solution method is validated experimentally using existing tests of column leaching using iodine-based lixiviants. The obtained results show good agreement with the experimental data. In addition, the results indicate that the rate of effluent gold concentration increases until its maximum when the flow velocity, concentration of iodine lixiviants, or specific surfac e increase. After the peak, the behaviour is more complex and the obtained results allow to optimise the amount of recovered gold.

    Related items

    Showing items related by title, author, creator and subject.

    • Apatite and monazite: An effective duo to unravel superimposed fluid-flow and deformation events in reactivated shear zones
      Prent, Alexander ; Beinlich, Andreas ; Raimondo, T.; Kirkland, Chris ; Evans, Noreen ; Putnis, Andrew (2020)
      Mylonitic shear zones crosscutting homogenous granitoids can retain evidence of fluid-driven metasomatic retrogression and reactivation. However, the relationships between fluid-rock interaction, retrogression, deformation ...
    • An investigation into the hydrothermal processing of coal fly ash to produce zeolite for controlled release fertiliser applications
      Elliot, Alexander Dean (2006)
      During the year that concluded prior to the commencement of this PhD (2001) 11.7 million tonnes of fly ash was produced in Australia, of which only 32% was utilised is some way, near its conclusion, the latest statistics ...
    • Transportation and Accumulation of Redox Active Species at the Buried Interfaces of Plasticized Membrane Electrodes
      Sohail, M.; De Marco, Roland; Jarolímová, Z.; Pawlak, M.; Bakker, E.; He, N.; Latonen, R.; Lindfors, T.; Bobacka, J. (2015)
      © 2015 American Chemical Society. The transportation and accumulation of redox active species at the buried interface between glassy carbon electrodes and plasticized polymeric membranes have been studied using synchrotron ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.