Abstract
In this paper, a study was made on digestion behavior of sulfur in high-sulfur bauxite. It was investigated that the effects of temperature, time, lime dosage and initial caustic concentration on digestion behavior of sulfur. The results show that sulfur in high-sulfur bauxite goes into solution mostly in the form of S2”; the digestion rates of sulfur increase at first and then decrease with the increase of lime dosage; the digestion rates of sulfur increase with the increase of temperature, initial caustic concentration and digestion time; in this experiment, the process conditions for getting higher digestion rate of alumina and lower digestion rate of sulfur are temperature 260 °C, digestion time 60 min and lime dosage 13%, under these conditions, digestion rates of alumina and sulfur are respectively 84.16% and 40.04%). And research results reveal both S2− and S2O32− in solution can be removed completely by wet oxidation in digestion process.
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© 2015 TMS (The Minerals, Metals & Materials Society)
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Liu, Z., Li, W., Ma, W., Yin, Z., Wu, G. (2015). Research on Digestion Behavior of Sulfur in High-Sulfur Bauxite. In: Hyland, M. (eds) Light Metals 2015. Springer, Cham. https://doi.org/10.1007/978-3-319-48248-4_7
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DOI: https://doi.org/10.1007/978-3-319-48248-4_7
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-48610-9
Online ISBN: 978-3-319-48248-4
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