Mullitization of HF-treated Kaolin

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J. Korean Ceram. Soc. > Volume 24(4); 1987 > Article

Journal of the Korean Ceramic Society 1987;24(4): 376.

HF 처리된 Kaolin의 Mullite화 반응

박정현, 장안재, 박한수¹

연세대학교 공과대학 요업공학과
¹홍익공업전문대학 요업공학과

Mullitization of HF-treated Kaolin

ABSTRACT

Kaolin was treated by HF and fired at high temperature in order to reduce silica and impurity minerals of kaolin, and eventually to increase the yield of mullite. The kaolin structure was destroyed by HF-treatment and transformed into mullite at lower temperature than those of non-treated kaolin. Not only the silica content of kaolin was reduced, but also the crystalline structure of it was destroyed by HF-treatment.