^1.Key Laboratory of Integrated Exploitation of Bayan Obo Multi-Metal Resources, School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou 014010, Inner Mongolia, China

^2.Collaborative Innovation Center of Integrated Exploitation of Bayan Obo Multi-Metal Resources, Inner Mongolia University of Science and Technology, Baotou 014010, Inner Mongolia, China

^3.National and Local Joint Engineering Research Center of Integrated Exploitation of Bayan Obo Associated Mineral Waste Resources, Inner Mongolia University of Science and Technology, Baotou 014010, Inner Mongolia, China