1 | Department of Chemical and Materials Engineering, University of Alberta, Edmonton, T6G 1H9, Alberta, Canada |
2 | Baogang Mining Research Institute, Baotou, 014010, Inner Mongolia, China |
3 | Key Laboratory of Coal Processing and Efficient Utilization (Ministry of Education), School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China; |
4 | Mining and Minerals Engineering Department, Virginia Tech, Blacksburg, Virginia 24060 US |
5 | School of Resources and Environmental Engineering, Shandong University of Technology, Zibo 255049, China |