Skip to main content
Conference Proceedings

12th International Conference of Molten Slags, Fluxes and Salts MOLTEN 2024 Proceedings

Conference Proceedings

12th International Conference of Molten Slags, Fluxes and Salts MOLTEN 2024 Proceedings

PDF Add to cart

Methodology development of electrical conductivity measurements for non-ferrous slags

As a result of the globally increasing consumer use of electronic devices, it is expected that pressure will increase on the supply chain of precious metals. Hence, recycling of these electronics becomes increasingly important, as well as optimising the current processes. One major issue in metallurgical processes is the amount of metal that is lost into the slag. This metal loss is inherent to the production process and therefore, additional processing steps such as slag cleaning may be required. Slag cleaning can be done in electrical resistance furnaces where heat is produced using the Joule effect, making the slag’s electrical conductivity an important operating parameter. Since slags are ionic liquids, the electrical conduction happens via the movement of ions which is called ionic conductivity. However, within the presence of transition metal oxides, a second mechanism of conductivity occurs as electrons are able to hop from one transition state to another, which is known as electronic conductivity. As ‘FeO’ is a common slag component in the non-ferrous pyrometallurgical industry, both mechanisms are present, but their proportions vary with the respective amounts of the two forms of the multi-valent ions and hence, with the oxygen partial pressure. The goal of the present study is to develop an experimental set-up and methodology for measuring the electrical conductivity of synthetic SiO2 – CaO – AlO1.5 – ‘FeO’ slags at various oxygen partial pressures.
Return to parent product
  • Methodology development of electrical conductivity measurements for non-ferrous slags
    PDF
    This product is exclusive to Digital library subscription
  • Methodology development of electrical conductivity measurements for non-ferrous slags
    PDF
    Normal price $22.00
    Member price from $0.00
    Add to cart

    Fees above are GST inclusive

PD Hours
Approved activity
  • Published: 2024
  • Unique ID: P-04053-P4R4G3

Our site uses cookies

We use these to improve your browser experience. By continuing to use the website you agree to the use of cookies.