1. Key Laboratory for Ecological Metallurgy of Multimetallic Mineral (Ministry of Education) Northeastern University Shenyang P. R. China
2. School of Metallurgy Northeastern University Shenyang P. R. China
3. Pangang Group Company Limted Vanadium and Titanium Resources Comprehensive Utilization of State Ley Laboratory Panzhihua Sichuan P. R. China
4. School of Chemistry and Materials Engineering Liupanshui Normal University Liupanshui Guizhou P. R. China
5. Guizhou Provincial Key Laboratory of Coal Clean Utilization Liupanshu Guizhou P. R. China
6. School of Material Science and Engineering Northeastern University Shenyang Liaoning P. R. China