Abstract
To increase the proportion of lower grade bauxite in the utilized feed and also the possibility of increasing A/S ratio (Al2O3 to SiO2 mass ratio) in the plant feed (4.66), some investigations have been carried out on improving A/S ratio of Elburz Bauxite, especially lower grade ones, by gravitational method and flotation. To evaluate heavy media separation, heavy liquids with different specific gravities in the range of 2.8–3.4 (g/cm3) have been used on various size fractions of this bauxite with initial A/S ratio between 1.3–8.5. A special specific gravity can produce the concentrates (in sunk fractions) with the A/S ratios and productivities which can economically be used as plant feed . Pilot plant tests also carried out on a 25t sample of Bauxite with a A/S ratio of 2.0 and concentrate A/S and recovery in DMS tests were 3.40 and >40%, respectively
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References
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Shadloo, M., Zarbayani, M. (2015). Improving Characterization of Low Grade Elburz Bauxite to Be Utilized in Jajarm Alumina Plant. In: Hyland, M. (eds) Light Metals 2015. Springer, Cham. https://doi.org/10.1007/978-3-319-48248-4_3
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DOI: https://doi.org/10.1007/978-3-319-48248-4_3
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-48610-9
Online ISBN: 978-3-319-48248-4
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