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Advances in Beneficiation of Low-Grade Bauxite Read chapter Read first chapter

2019 | OriginalPaper | Chapter

Quantitative X-Ray Diffraction Study into Bauxite Residue Mineralogical Phases

Authors : John Vogrin, Harrison Hodge, Talitha Santini, Hong Peng, James Vaughan

Published in: Light Metals 2019

Publisher: Springer International Publishing

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Abstract

Over 100 million tonnes of bauxite residue is produced annually as a by-product of the Bayer process. Bauxite residue utilisation represents both a challenge and an opportunity for the alumina industry. Bauxite residue is a fine-grained, complex mixture of numerous mineral phases, which varies based on refinery operating conditions and bauxite ore. Quantitative X-ray diffraction by Rietveld refinement was used to characterise several industrially sourced residues and better understand the potential value and risk in this material. Particular emphasis was placed on characterisation of aluminium bearing phases to identify opportunities for process optimisation and residue utilisation. Analysis revealed that a significant proportion, up to 66%, of the total aluminium in some residues can be hosted within iron oxides via solid solution.

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previous chapter An Ecological Approach to the Rehabilitation of Bauxite Residue
next chapter Technospheric Mining of Rare Earth Elements and Refractory Metals from Bauxite Residue
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Metadata
Title
Quantitative X-Ray Diffraction Study into Bauxite Residue Mineralogical Phases
Authors
John Vogrin
Harrison Hodge
Talitha Santini
Hong Peng
James Vaughan
Copyright Year
2019
Book
Light Metals 2019

Print ISBN: 978-3-030-05863-0

Electronic ISBN: 978-3-030-05864-7

Copyright Year: 2019

DOI
https://doi.org/10.1007/978-3-030-05864-7_13

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