• Login
    View Item 
    •   NWU-IR Home
    • Research Output
    • Faculty of Natural and Agricultural Sciences
    • View Item
    •   NWU-IR Home
    • Research Output
    • Faculty of Natural and Agricultural Sciences
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Determining the baking isotherm temperature of Söderberg electrodes and associated structural changes

    Thumbnail
    Date
    2013
    Author
    Shoko, L.
    Beukes, J.P.
    Strydom, C.A.
    Metadata
    Show full item record
    Abstract
    One of the most commonly employed electrode systems in industrial metal smelting applications is continuous self-baking electrodes, i.e. the Söderberg electrode system. In this system, the temperature at which transition from a liquid/soft paste to a solid carbonaceous electrode takes place is termed the baking isotherm temperature. This temperature is extremely important within the context of electrode management. In this paper, thermo mechanical analysis (TMA) was used to measure the dimensional changes that take place in coal tar pitch in the temperature range relevant to the determination of the baking isotherm temperature. It was found that the baking isotherm temperature of coal tar pitches was between 450 and 475 °C, irrespective of the initial chemical composition and physical characteristics of the coal tar pitch. Subsequent Fourier Transform Infra-Red (FTIR) analyses indicated that all coal tar pitches underwent similar compositional changes during the transition from a molten/liquid coal tar pitch to a solid carbonaceous material.
    URI
    http://hdl.handle.net/10394/14706
    https://doi.org/10.1016/j.mineng.2013.04.015
    https://www.sciencedirect.com/science/article/pii/S0892687513001209
    Collections
    • Faculty of Natural and Agricultural Sciences [4817]

    Copyright © North-West University
    Contact Us | Send Feedback
    Theme by 
    Atmire NV
     

     

    Browse

    All of NWU-IR Communities & CollectionsBy Issue DateAuthorsTitlesSubjectsAdvisor/SupervisorThesis TypeThis CollectionBy Issue DateAuthorsTitlesSubjectsAdvisor/SupervisorThesis Type

    My Account

    LoginRegister

    Copyright © North-West University
    Contact Us | Send Feedback
    Theme by 
    Atmire NV