Abstract
Using ammonium bisulfate solution to extract alumina from low grade bauxite process was developed. Most alumina and ferric oxide of the bauxite was leached into the solution. All of silica was retained in solid phase. The separation of aluminum and silicon was realized by this method. The conditions were studied in the lab, which are leaching temperature, leaching time, concentration of the ammonium bisulfate solution and mass ratio of ammonium bisulfate and the gibbsite. Metallurgical grade sandy alumina, ferric hydroxide and residue with high silica were gotten. The alumina extracted rate can be about 82% to process low grade gibbsite from Indonesia.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Yang Z Y. Alumina Production Processes [M]. Beijing: The Metallurgical Industry Press, 1993.
Bi S W, Yu H Y, Yang Y H. Alumina Production by Bayer process [M]. Beijing: The Metallurgical Industry Press, 2007: 1–2.
Chen Q, Guan H Q, Xiong H. World aluminum industry resources-exploration and utilization state of bauxite and alumina [J]. Mining and Investment, 2007, (1): 27–33.
Gu S Q. Caustic and Alumina Recovery form Bayer Residues [A]. Stephen J L. Light Metals 2011 [C]. San Diego: TMS2011 140th Annual Meeting & Exhibition, 2011: 89−91.
Li W X, Liu J B, Liu Z M. The Most Important Sustainable Development Issues of Chinese Alumina Industry[A]. David H. Light Metals 2008 [C]. New Oleans: TMS2008 137th Annual Meeting & Exhibition, 2008: 191−195.
Sun H L, Wang B, Guo D, etc. The effect of ultrasonic treatment on alumina leaching form calcium aluminate slag [A]. Stephen J L. Light Metals 2011 [C]. San Diego: TMS2011 140th Annual Meeting & Exhibition, 2011: 221–225.
Liu Y Y, Li L S, Wu Y, et al. Further Utilization of Fly Ash—Extracting Alumina [J]. Light Metals, 2006, (5): 20–23.
Li L S, Zhai Y C, Qin J G, etc. Extracting high-pure alumina from fly ash[J]. Journal of Chemical Industry and Engineering (China), 2006, 57(9): 2189–2193.
Writing Group of 《Metallurgy of Light Metals Analysis》. Metallurgy of Light Metals Analysis [M]. Beijing: Metallurgical Industry Press, 1990. 43−62.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2014 TMS (The Minerals, Metals & Materials Society)
About this chapter
Cite this chapter
Laishi, L., Yusheng, W., Yingying, L. (2014). Extracting Alumina from Low Grade Bauxite with Ammonium Bisulfate Leaching. In: Grandfield, J. (eds) Light Metals 2014. Springer, Cham. https://doi.org/10.1007/978-3-319-48144-9_23
Download citation
DOI: https://doi.org/10.1007/978-3-319-48144-9_23
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-48590-4
Online ISBN: 978-3-319-48144-9
eBook Packages: Chemistry and Materials ScienceChemistry and Material Science (R0)