Thermodynamic Analysis on Oxidative Roasting of High Titanium Slag

The changes of phase structure and chemical compositions in high titanium slag are studied by oxidative roasting experiment in this paper.Furthermore, the thermodynamic behavior of each component of high titanium slag in the high temperature roasting process is discussed.The result indicated that most of black titanium stone phase and anatase turn into rutile in the process of oxidative roasting at 1 000℃ temperature.The thermodynamic laws on oxidative roasting of high titanium slag is investigated, the theory basis of dealing with high titanium slag is provided, it is important for improving conventional treatment technology of high titanium slag.