Fig. 1. Schematic diagram of the experimental setup.
Fig. 2. X-ray diffraction patterns of synthesized FeTiO3 (A) and sample obtained from Exp. A (B).
Fig. 3. Standard free energy of the reactions of experiment as a function of temperature.
Fig. 4. Mineralogical microstructure of Exp. B by FE-SEM.
Fig. 5. X-ray diffraction patterns of the sample (Exp. B) in the Ar gas atmosphere: (1) Metal phase separated from the sample, (2) Oxide phase separated from the sample.
Fig. 6. X-ray diffraction patterns of the sample (Exp. C-1,3) in the Ar gas atmosphere: (1) Separated sample at 1473 K, (2) Separated sample at 1273 K.
Fig. 7. Contents of Ti, Fe and Na in oxide and Fe in metal as a function of temperature at 0.5 of S/Fe ratio.
Fig. 8. Contents of Ti, Fe and Na in oxide and Fe in metal as a function of sulfur/Fe ratio at 1573 K.
Table 1. Initial composition of the sample and the used crucible for the Exp. A ~ C
Table 2. SEM/EDS point analysis results obtained by Exp. B in the Ar gas atmosphere (mass%)
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