Quantitative x-ray diffraction study into bauxite residue mineralogical phases

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

Research output: Chapter in Book/Conference paperConference paperpeer-review

3 Citations (Scopus)

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.

Original languageEnglish
Title of host publicationLight Metals, 2019
EditorsCorleen Chesonis
PublisherSpringer International Publishing AG
Pages93-99
Number of pages7
ISBN (Print)9783030058630
DOIs
Publication statusPublished - 16 Feb 2019
EventLight Metals Symposium held at the TMS Annual Meeting and Exhibition, 2019 - San Antonio, United States
Duration: 10 Mar 201914 Mar 2019

Publication series

NameMinerals, Metals and Materials Series
ISSN (Print)2367-1181
ISSN (Electronic)2367-1696

Conference

ConferenceLight Metals Symposium held at the TMS Annual Meeting and Exhibition, 2019
Country/TerritoryUnited States
CitySan Antonio
Period10/03/1914/03/19

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