Abstract
The growing stockpiles of bauxite residue and associated environmental hazards require a sophisticated process flowsheet for sustainable residue management and value recovery. Considering the association of multiple elements (Fe, Al, Si, Ca, Ti, V, Sc) within bauxite residue, metal extraction is of prime interest. The complex association of different elements and physical and chemical characteristics makes the extraction and purification process expensive and challenging. The present study focuses on developing a novel hydrometallurgical flowsheet for the subsequent recovery of base metals and critical elements from bauxite residue. The major elements present in bauxite residue are recovered as high-purity magnetite, titanium dioxide, and alumina. At the same time, critical elements (such as V and Sc) are recovered in the liquid stream generated after the recovery of base metals.
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Acknowledgements
The authors are thankful to Mr. Glenn Yee for the fellowship he instituted at the Worcester Polytechnic Institute. Thanks are due to the NSF Center for Resource Recovery and Recycling with their technical support through Global Minerals Recovery, LLC.
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Tanvar, H., Mishra, B. (2023). Recovery of Value Added Products from Bauxite Residue. In: Broek, S. (eds) Light Metals 2023. TMS 2023. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-031-22532-1_111
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DOI: https://doi.org/10.1007/978-3-031-22532-1_111
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