Abstract
A bench scale determination of effects of calcined coke properties on prebaked anode properties was made using 16 cokes. Coke physical and chemical analyses included bulk and real densities, crystallite height, electrical resistivity, BET surface area, mercury porosimetry, and impurity analyses. Anode density, electrical resistivity, excess electrolytic consumption, and air burning rate were determined. Least squares regression analyses were carried out. Anode density correlated well with coke vibrated bulk density and coke porosity below 5 um in diameter. Electrical resistivity correlated very well with coke resistivity, along with vibrated bulk density. Air burning to a 10% weight loss correlated only with mercury porosimetry values, although rate toward the end of the experiments increased with coke vanadium content. Consumption during electrolysis correlations were weak, but consumption increased with metallic impurities such as nickel.
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Belitskus, D., Danka, D.J. (2016). A Comprehensive Determination of Effects of Calcined Petroleum Coke Properties on Aluminum Reduction Cell Anode Properties. In: Tomsett, A., Johnson, J. (eds) Essential Readings in Light Metals. Springer, Cham. https://doi.org/10.1007/978-3-319-48200-2_9
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DOI: https://doi.org/10.1007/978-3-319-48200-2_9
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