Thermal conductivity of solidified manganese-bearing slags : a preliminary investigation

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Authors

Steenkamp, Joalet Dalene
Tangstad, M.
Pistorius, Petrus Christiaan

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Publisher

Southern African Institute of Mining and Metallurgy

Abstract

The thermal conductivity of slag is an important parameter in the design of furnace-containment systems based on freeze-lining technology. Literature indicates that the crystal content of a slag has a significant influence on its thermal conductivity. Industrial, rich, manganese-bearing slag was cooled at different rates to create samples with different microstructures. The coefficients of thermal conductivity of these samples were measured in a nitrogen atmosphere from room temperature to 990°C at 100°C intervals. The laser-flash measurement technique was used for this purpose. Follow-up investigations included XRF and XRD and modelling in FACTSage.

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Keywords

Specific heat capacity, Industrial rich high-carbon manganese slag

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Citation

Steenkamp, JD, Tangstad, M & Pistorius, PC 2011, 'Thermal conductivity of solidified manganese-bearing slags : a preliminary investigation', Journal of the Southern African Institute of Mining and Metallurgy, vol. 111, no. 12. pp. 327- 343.