supported by open the National Natural Science Foundation of China (Grant No. 41373062, 40973047);the Specialized Research Fund (20125122110015) for the Doctoral Program of Higher Education of China;fund of Key Laboratory of Salt Lake Resources and Chemistry (KLSLRC-KF-13-DX-1);the youth science and technology innovation team of Sichuan Province, China (2013TD0005)
1 Introduction The underground brine resources distributing widely in Sichuan Basin,China have drawn worldwide attention due to their unusual element abundance and excellent quality.