Ilmenite for pigment and metal production
Chlorination method. DuPont in USA [4] produces the pigment since 1950 by direct chlorination of ilmenite ore, separation of products by fractional distillation, then oxidation of TiCl4 (Figure 10): Figure 10: Simplified Du Pont process for pigment production from ilmenite. 2FeTiO3 + 7Cl2 + 3C → 2TiCl4 + 2FeCl3 + 3CO2.