Preparation of TiCl from Ilmenite Concentrates via Carbothermal Reduction and Boiling Chlorination for Different Carbon Proportions.

Low-temperature boiling chlorination is the most common approach used to achieve a clean preparation of TiCl from ilmenite concentrates with high contents of calcium and magnesium impurities. However, this process did not systematically investigate the impact of the Ti/C ratio of the raw materials on the chlorination efficiency of Ti, Ca, and Mg elements. Thus, the influence of the carbon allocation proportion on the carbothermal reduction and boiling chlorination process of ilmenite concentrates with high contents of calcium and magnesium impurities was investigated in this study.