1. State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering Ningxia University Yinchuan 750021 China
2. College of Chemistry and Chemical Engineering Ningxia University Yinchuan 750021 China
3. Comprehensive Technology Centre Zhenjiang Customs District P. R. of China Zhenjiang 212000 China
4. Shanghe New Materials Company Zhenjiang 212000 China