1. Inner Mongolia Engineering Research Center of Comprehensive Utilization of Bio-Coal Chemical Industry, Baotou 014010, China
2. School of Chemistry and Chemical Engineering, Inner Mongolia University of Science and Technology, Baotou 014010, China
3. Shandong Shengli Bioengineering Co., Ltd., Jining 272000, China
4. Inner Mongolia Tongwei High Pure Crystal Silicon Co., Ltd., Baotou 014010, China