1 | Key Laboratory of Coal Processing and Efficient Utilization (Ministry of Education), China University of Mining & Technology, Xuzhou 221116, China |
2 | School of Chemical Engineering and Technology, China University of Mining & Technology, Xuzhou 221116, China |
3 | Bakuang Coal Preparation Plant, Pingdingshan Shenma Group Coal Industry Co., Ltd, Pingdingshan 467000, China |