Abstract: Taking the overflow from the series classification of φ75 mm and φ50 mm hydrocyclone in a certain Kaolin Mine of Hepu in Guangxi as raw materials of stripping，investigation on effect of type and dosage of dispersant，stripping concentration and time on the Kaolin stripping were carried out by adopting the stirred mill.It was obtained that stripping product in -2 μm size reached the yield of 95% when stripping concentration was 65%，stripping time 140 min and dispersant polyacrylate sodium (DC) accounting for 2% of the raw materials by adding two times separately.

Key words: Kaolin, Stripping, Dispersant, High-grade filler