STUDY ON THE PURIFICATION OF JIEPAI KAOLINE BY VIBRATING HGMS

The problem to remove iron and titanium contaminantions from kaoline has still need to besolved pressingly in ceramic industry in China. In this paper, it is studied that various factors influenceon the efficiency of removing iron and titanium from Jiepai kaoline (Fe₂O₃+TiO₂,>0. 85%)by meansof vibrating high-gradient magnetic separation (HGMS). The results showed that Kaoline productcontaining minus 0. 5% of (Fe₂O₃+TiO₂) was produced with its yeild of plus 85% and its whitenesswas improved from 61. 3% to 70.3% after separating. But, the total content of (Fe₂O₃ +TiO₂) can bedecreased to minus 0. 4% after cleaning.