A New Process for Comprehensive Utilization of the Vanadium-bearing Titaniferous Magnetite Ore

摘要

At least 90 mass% titanium resources in China are located in Panzhihua (Sichuan Province) which is characterized by vanadium-bearing titaniferous magnetite ore. With the depleting of natural high-grade rutile [1], the titaniferous ore as a relative low-grade titanic ore has been attracting more and more attention. Sponge titanium and titanate white are the main commercial productions in titanium industry, and TiCl4 is regarded as the most important semifinished product during preparing both productions. However, producing TiCl4 using this ilmenite encounters many difficulties due to the high content of impurities. Conventional bubble bed process even becomes inapplicable due to “agglomeration” caused by high contents of CaO and MgO. Therefore, a new process using the combined fluidized bed was proposed to fully utilize Panzhihua titanium resources [2].