1. College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao, P.R. China
2. College of Resources and Civil Engineering, Northeastern University, Shenyang, P.R. China
3. National-local Joint Engineering Research Center of High-efficient Exploitation Technology for Refractory Iron Ore Resources, Shenyang, P.R. China
4. State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang, P.R. China