1. School of Materials and Metallurgy Inner Mongolia University of Science and Technology Baotou 014010 China
2. Key Laboratory of Integrated Exploitation of Bayan Obo Multi-Metal Resources Inner Mongolia University of Science and Technology Baotou 014010 China
3. National Provincial Joint Engineering Research Center for Comprehensive Utilization of Symbiotic Associated Mineral Waste Resources in Bayan Obo Inner Mongolia University of Science and Technology Baotou 014010 China