Abstract
IN earlier work1 the rate of oxidation of the 110 faces of zinc sulphide was measured by use of a thermobalance. Below 830° C. the rate was found to be ‘chemically controlled’, being an exponential function of temperature and largely independent of the thickness of the product layer of zinc oxide. Above 830° C. there were indications of the onset of a ‘diffusion control’, depending on the diffusion of the oxygen up to the zinc sulphide interface through the layer of porous oxide.
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References
Cannon, K. J., and Denbigh, K. G., Chem. Eng. Sci., 6, 145 (1957).
Veselovski, B. K., J. App. Chem. (U.S.S.R.), 15, 422 (1942).
Richards, A. W. (unpublished work with Imperial Smelting Corporation, Avonmouth).
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BEVERIDGE, G., DENBIGH, K. High-Temperature Oxidation of Zinc Sulphide. Nature 183, 106–107 (1959). https://doi.org/10.1038/183106a0
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DOI: https://doi.org/10.1038/183106a0
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