Heavy Mineral Sands Mining and Downstream Processing: Value of Mineralogical Monitoring Using XRD

Heavy mineral sands are the source of various commodities such as white titanium dioxide pigment and titanium metal. The three case studies in this paper show the value of X-ray diffraction (XRD) and statistical methods such as data clustering for process optimization and quality control during heav...

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Autores principales: Uwe König, Sabine M. C. Verryn
Formato: article
Lenguaje:EN
Publicado: MDPI AG 2021
Materias:
XRD
Acceso en línea:https://doaj.org/article/fbe7a2a867f249868790ae0e1edddcd5
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spelling oai:doaj.org-article:fbe7a2a867f249868790ae0e1edddcd52021-11-25T18:26:37ZHeavy Mineral Sands Mining and Downstream Processing: Value of Mineralogical Monitoring Using XRD10.3390/min111112532075-163Xhttps://doaj.org/article/fbe7a2a867f249868790ae0e1edddcd52021-11-01T00:00:00Zhttps://www.mdpi.com/2075-163X/11/11/1253https://doaj.org/toc/2075-163XHeavy mineral sands are the source of various commodities such as white titanium dioxide pigment and titanium metal. The three case studies in this paper show the value of X-ray diffraction (XRD) and statistical methods such as data clustering for process optimization and quality control during heavy mineral processing. The potential of XRD as an automatable, reliable tool, useful in the characterization of heavy mineral concentrates, product streams and titania slag is demonstrated. The recent development of ultra-high-speed X-ray detectors and automated quantification allows for ‘on the fly’ quantitative X-ray diffraction analysis and truly interactive process control, especially in the sector of heavy mineral concentration and processing. Apart from the information about the composition of a raw ore, heavy mineral concentrate and the various product streams or titania slag, this paper provides useful information by the quantitative determination of the crystalline phases and the amorphous content. The analysis of the phases can help to optimize the concentration of ores and reduction of ilmenite concentrate. Traditionally, quality control of heavy mineral concentrates and titania slag relies mainly on elemental, chemical, gravimetrical, and magnetic analysis. Since the efficiency of concentration of minerals in the different product streams and reduction depends on the content of the different minerals, and for the latter on the titanium and iron phases such as ilmenite FeTiO<sub>3</sub>, rutile TiO<sub>2</sub>, anatase TiO<sub>2,</sub> or the various titanium oxides with different oxidation stages, fast and direct analysis of the phases is required.Uwe KönigSabine M. C. VerrynMDPI AGarticleheavy mineralsilmenitetitania slagXRDcluster analysisrietveldMineralogyQE351-399.2ENMinerals, Vol 11, Iss 1253, p 1253 (2021)
institution DOAJ
collection DOAJ
language EN
topic heavy minerals
ilmenite
titania slag
XRD
cluster analysis
rietveld
Mineralogy
QE351-399.2
spellingShingle heavy minerals
ilmenite
titania slag
XRD
cluster analysis
rietveld
Mineralogy
QE351-399.2
Uwe König
Sabine M. C. Verryn
Heavy Mineral Sands Mining and Downstream Processing: Value of Mineralogical Monitoring Using XRD
description Heavy mineral sands are the source of various commodities such as white titanium dioxide pigment and titanium metal. The three case studies in this paper show the value of X-ray diffraction (XRD) and statistical methods such as data clustering for process optimization and quality control during heavy mineral processing. The potential of XRD as an automatable, reliable tool, useful in the characterization of heavy mineral concentrates, product streams and titania slag is demonstrated. The recent development of ultra-high-speed X-ray detectors and automated quantification allows for ‘on the fly’ quantitative X-ray diffraction analysis and truly interactive process control, especially in the sector of heavy mineral concentration and processing. Apart from the information about the composition of a raw ore, heavy mineral concentrate and the various product streams or titania slag, this paper provides useful information by the quantitative determination of the crystalline phases and the amorphous content. The analysis of the phases can help to optimize the concentration of ores and reduction of ilmenite concentrate. Traditionally, quality control of heavy mineral concentrates and titania slag relies mainly on elemental, chemical, gravimetrical, and magnetic analysis. Since the efficiency of concentration of minerals in the different product streams and reduction depends on the content of the different minerals, and for the latter on the titanium and iron phases such as ilmenite FeTiO<sub>3</sub>, rutile TiO<sub>2</sub>, anatase TiO<sub>2,</sub> or the various titanium oxides with different oxidation stages, fast and direct analysis of the phases is required.
format article
author Uwe König
Sabine M. C. Verryn
author_facet Uwe König
Sabine M. C. Verryn
author_sort Uwe König
title Heavy Mineral Sands Mining and Downstream Processing: Value of Mineralogical Monitoring Using XRD
title_short Heavy Mineral Sands Mining and Downstream Processing: Value of Mineralogical Monitoring Using XRD
title_full Heavy Mineral Sands Mining and Downstream Processing: Value of Mineralogical Monitoring Using XRD
title_fullStr Heavy Mineral Sands Mining and Downstream Processing: Value of Mineralogical Monitoring Using XRD
title_full_unstemmed Heavy Mineral Sands Mining and Downstream Processing: Value of Mineralogical Monitoring Using XRD
title_sort heavy mineral sands mining and downstream processing: value of mineralogical monitoring using xrd
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/fbe7a2a867f249868790ae0e1edddcd5
work_keys_str_mv AT uwekonig heavymineralsandsmininganddownstreamprocessingvalueofmineralogicalmonitoringusingxrd
AT sabinemcverryn heavymineralsandsmininganddownstreamprocessingvalueofmineralogicalmonitoringusingxrd
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