State Key Laboratory of Advanced Metallurgy;
University of Science and Technology Beijing;
Beijing 100083;
China;
School of Metallurgical and Ecological Engineering;
University of Science and Technology Beijing;
Beijing 100083;
China;
Guanzhuang Campus;
University of Science and Technology Beijing;
Beijing 100083;
China;
Semi-coke; Combustion ratio; Functional group; Graphitization degree; Grindability;