Purification and Phase Evolution Mechanism of Titanium Oxycarbide (TiCxOy) Produced by the Thermal Reduction of Ilmenite

The phase evolution mechanism and purification of titanium oxycarbide (TiCxOy) synthesized via the carbothermal reduction ilmenite are investigated. reaction process products performed analyzed by means X-ray diffraction (XRD), scanning electron microscopy-energy disperse spectroscopy (SEM-EDS), photoelectric (XPS) enthalpy, entropy heat capacity (HSC) thermodynamic software. According to shapes Ti 2p3/2 2p1/2 peaks in XPS spectra, together with XRD analyses, TiO, TiCxOy or TiC can be judged. involves FeTi2O5, Ti2O3, Fe, under enhancing content carbon. law written as FeTiO3 ? FeTi2O5 Ti2O3 + Fe TiO Fe. Due incomplete state TiCxOy, ?G? is detected between TiO. could attained conditions Ti:C, 1:3–1:4 argon atmosphere at 1550 °C after 2 h. Grinding, flotation magnetic separation processes displayed that C, not dissociated until particle size ?38 ?m. separated an iron-bath a high temperature. 95.56% obtained, resistance less than 0.05 ?.