An investigation of goethite-seeded Al(OH)(3) precipitation using in situ x-ray diffraction and rietveld-based quantitative phase analysis

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dc.contributor.authorWebster, NASen_AU
dc.contributor.authorMadsen, ICen_AU
dc.contributor.authorLoan, MJen_AU
dc.contributor.authorKnott, RBen_AU
dc.contributor.authorNaim, Fen_AU
dc.contributor.authorWallwork, KSen_AU
dc.contributor.authorKimpton, JAen_AU
dc.date.accessioned2010-06-15T05:56:48Zen_AU
dc.date.available2010-06-15T05:56:48Zen_AU
dc.date.issued2010-06en_AU
dc.date.statistics2010-06en_AU
dc.description.abstractAn in situ X-ray diffraction investigation of goethite-seeded Al(OH)3 precipitation from synthetic Bayer liquor at 343 K has been performed. The presence of iron oxides and oxyhydroxides in the Bayer process has implications for alumina reversion, which causes significant process losses through unwanted gibbsite precipitation, and is also relevant for the nucleation and growth of scale on mild steel process equipment. The gibbsite, bayerite and nordstrandite polymorphs of Al(OH)3 precipitated from the liquor; gibbsite appeared to precipitate first, with subsequent formation of bayerite and nordstrandite. A Rietveld-based approach to quantitative phase analysis was implemented for the determination of absolute phase abundances as a function of time, from which kinetic information for the formation of the Al(OH)3 phases was determined. © 2010, Wiley-Blackwell. The definitive version is available at www3.interscience.wiley.comen_AU
dc.identifier.citationWebster, N. A. S., Madsen, I. C., Loan, M. J., Knott, R. B., Naim, F., Wallwork, K. S., et al. (2010). An investigation of goethite-seeded Al(OH)(3) precipitation using in situ x-ray diffraction and rietveld-based quantitative phase analysis. Journal of Applied Crystallography, 43, 466-472. doi:10.1107/S0021889810008484en_AU
dc.identifier.govdoc1746en_AU
dc.identifier.issn0021-8898en_AU
dc.identifier.journaltitleJournal of Applied Crystallographyen_AU
dc.identifier.pagination466-472en_AU
dc.identifier.urihttp://dx.doi.org/10.1107/S0021889810008484en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/1716en_AU
dc.identifier.volume43en_AU
dc.language.isoenen_AU
dc.publisherWiley-Blackwellen_AU
dc.subjectX-ray diffractionen_AU
dc.subjectGoethiteen_AU
dc.subjectPrecipitationen_AU
dc.subjectPhase studiesen_AU
dc.subjectCrystal structureen_AU
dc.subjectGibbsiteen_AU
dc.titleAn investigation of goethite-seeded Al(OH)(3) precipitation using in situ x-ray diffraction and rietveld-based quantitative phase analysisen_AU
dc.typeJournal Articleen_AU
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