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- W3087975088 abstract "In this research, the carbothermal reduction of Langkawi ilmenite ore, FeTiO 3 had been conducted by using coke as carbon reductant. All samples were grinded into size of ≤ 63 µm and pelletized using 2.5 g mixture of ilmenite ore with coke based on C/O molar ratio of 1:3 (carbon to reducible oxygen). The carbothermal reduction was conducted in a horizontal tube furnace using 0.1 L/min of argon gas flow at temperature of 1200°C. The ultimate and proximate analysis of carbon reductant was investigated using carbon, hydrogen, oxygen, nitrogen and sulfur (CHONS) analyzer. The phase evolutions and chemical composition analysis was conducted using X-ray diffraction (XRD) and X-ray fluorescence (XRF) for raw ilmenite and reduced ilmenite with coke, respectively. The reduction time was set with 2, 3 and 4 hours to understand the phase evolutions. It was found that Langkawi ilmenite ore contained mainly higher TiO 2 and hematite, Fe 2 O 3 where the phases of FeTiO 3 and titanomagnetite, (Fe 2 TiO 4 -Fe 3 O 4 ) were detected using XRD. The phase of FeTiO 3 evolved into the production of Fe, FeO, TiC, TiO 2 and Fe 3 C when increased the reduction time from 2 to 4 hours. The amount of Fe 2 O 3 production was decreased from 59.16 to 47.02 wt%, while higher value of TiO 2 was obtained, increasing from 25.2 to 29.1 wt% due to the reduction of TiO 2 to Ti 3 O 5 as the reduction time increased. TiC content is also detected when the reduction time increased by reducing TiC x O y into TiC." @default.
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- W3087975088 date "2020-09-01" @default.
- W3087975088 modified "2023-09-26" @default.
- W3087975088 title "Phase Evolution during Carbothermal Reduction of Langkawi Ilmenite Ore at Different Reaction Times" @default.
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- W3087975088 doi "https://doi.org/10.4028/www.scientific.net/msf.1010.391" @default.
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