1. School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
2. National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
3. International College, University of Chinese Academy of Sciences, Beijing, China
4. School of Metallurgy, Northeastern University, Shenyang, China
5. Research Center of Vanadium and Titanium Technology, Chengde Iron and Steel Group Co., Ltd., Hebei Iron and Steel Group Co., Ltd., Chengde, Hebei, China