Study on Character of Ilmenite Modified by Thermal Treatment

Abstract:

The character of ilmenite was modified by pretreatment, the effect of pre-oxidation temperature and time on structure of ilmenite were investigated by X-ray diffraction(XRD) and Thermo-gravimetric/differential thermal analysis. The results indicated that new microcrystal rutile and FeTiO₃·Fe₂O₃ solid solution were appeared on the surface of mineral below 800°C, but evident rutile crystals and pseudobrookite Fe₂O₃·TiO₂ were appeared above 850°C with the structure of ilmenite disrupting simultaneously. The preoxidation time increased from 15min to 60min, evident microcrystal rutile and FeTiO₃·Fe₂O₃ solid solution were appeared by degrees without structure of ilmenite breaking.

• Periodical: Advanced Materials Research (Volumes 284-286)
• Pages: 2090-2093
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.284-286.2090
• Online since: July 2011
• Authors: Xue Liang Xiong, Zhi Yang, Hong Yong Ouyang
• Keywords: FeTiO₃, Ilmenite, Preoxidation, Tio₂ Microcrystal

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