Process Optimization of Reducing Ilmenite Using Carbon

The compositions of ilmenite concentrate in Panxi Area are complex, and its properties are special.In order to explore the mechanism and obtain effects of carbon content, temperature and basicity on carbothermal reduction of ilmenite concentrate, the starting reduction temperature, metal content and metal metallization rate were calculated by HSC Chemistry 6.0 software.The results indicated that the reduction rate of metal gradually increased with the increase of temperature;the carbon content showed a great influence on carbothermal reduction;the temperature of starting reduction gradually decreased as the increase of carbon content.The increase of basicity had little effect on metal iron recovery, but had great effect on titanium and vanadium.When the temperature was 1 600 ℃, the basicity was 1, and the amount of carbon was 14%, the recoveries of iron, titanium and vanadium were the highest, which were more than 99%, 0.0147% and 25.5%, respectively.