1. National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization
2. Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province
3. Huaiyin Institute of Technology
4. Huaian 223003
5. China
6. School of Chemistry and Chemical Engineering
7. Beijing Institute of Technology
8. Beijing 100081
9. Chemistry and Chemical Engineering College
10. University of Xingtai
11. Xingtai