จาก ilmenite (FeTiO3) มข
นตอนดงน
• Digestion of ilmenite ore in H2SO4
• Separation of the less soluble iron
sulphate, FeSO4.7H2O
• Thermal hydrolysis of the titanium-
containing species, i.e. TiO(SO4) to obtain
hydrous titania
• Washing and calcination of the hydrous
oxide to obtain TiO