Fe2O3 hematite quantity increase in quartz sand by heat treatments
Ana COTAI, Traian Florin MARINCA, Florin POPA
download PDFAbstract. Heat treatments were performed on the quartz sand to increase the quantity of Fe2O3 hematite phase. The heat treatments were performed on the as-received sand samples. The heating temperatures were chosen in the range of 120-600 °C and the time durations in the range of 1-24 h. The sand phases evolution on the temperature was followed by differential scanning calorimetry (DSC). Identification of the phases was realized by X-ray diffraction. The modifications of the iron quantity and distribution in the sand particles were identified by Energy Dispersive X-ray Spectroscopy (EDX) analyses. An optimum temperature/time for the annealing was identified, leading to highest Fe2O3 content. Testes for magnetic separation were performed to validate the method.
Keywords
Quartz sand, Milled sand, Heat treatments, Hematite (Fe2O3)
Published online 11/5/2018, 10 pages
Copyright © 2018 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Ana COTAI, Traian Florin MARINCA, Florin POPA, ‘Fe2O3 hematite quantity increase in quartz sand by heat treatments’, Materials Research Proceedings, Vol. 8, pp 105-114, 2018
DOI: https://dx.doi.org/10.21741/9781945291999-12
The article was published as article 12 of the book Powder Metallurgy and Advanced Materials
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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