1. The Education Department of Liaoning Province, Engineering Research Center of Advanced Coal & Coking Technology and Efficient Utilization of Coal Resources, Anshan, P.R. China
2. School of Materials and Metallurgy, University of science and Technology Liaoning, Anshan, P.R. China
3. School of Chemical Engineering, University of Science and Technology Liaoning, Anshan, China
4. CSIRO Mineral Resources, Kenmore, Queensland, Australia