Investigation on Chlorination Characteristics of Panzhihua Titanium Slag in Molten Salts

The chemical compositions,phase compositions and mineral structures of Panzhihua titanium slags with 74%,78% and 85% grade were respectively studied in this paper,mainly focusing on the differences of chemical reactions,heat release and system heat balance control in molten salts chlorination process for the 3 mentioned titanium slags.It is indicated that there is no significant difference in phase compositions for the titanium slags,while the contents of anosovite,rutile and transition phase for the slags are different which leads to 21.9% of heat release less than 74% titanium slag and 9.9% of heat release more than 85% titanium slag,respectively compared with 78% titanium slag in molten salts chlorination.The amount of ore pulp back to the furnace based on the thermal equilibrium calculation for the chlorination furnace,coincides with the practical application in chlorination process.