The results show that, it is possible to get high pure rectorite clay which has the purity above 90 %, and yield between 24.9 % and 29.4 %, by the purification process using composite dispersant, stir grind dispersing method, etc. 结果表明,采用复合分散剂、搅拌研磨分散等工艺,通过提纯可获得纯度90%以上的累托石粘土,其产率为24.9%~29.4%。