The technique for the desilication of kaolinite in coal measures was described.The effect of additive on the desilicating reaction was explained.The roasting-desilicating process has been put forward.

• 研究了煤系高岭岩的焙烧活化脱硅过程,分析了助剂对脱硅反应的影响机理并提出了煤系高岭岩的焙烧活化脱硅工艺。