煤系高岭岩焙烧脱硅工艺及其动力学研究  

RESEARCH ON THE TECHNOLOGY AND KINETICS FOR THE DESILICATION OF KAOLINITE IN COAL MEASURES

作　　者：薛茹君[1] 

机构地区：[1]安徽理工大学化工系

出　　处：《矿物学报》2005年第4期363-366,共4页Acta Mineralogica Sinica

摘　　要：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。对煤系高岭岩的脱硅动力学进行了研究,得出在相应的工艺条件下煤系高岭岩的脱硅反应可按“收缩的未反应核模型”处理,并导出了动力学方程。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. The kinetics of desilication of kaolinite in coal measures has been studied as well. It is brought to light that the model of ＂contractive core which did not react＂ can be applied to the desilicating reaction of kaolinite in coal measures. The dynamic equation has been drawn out.

关 键 词：煤系高岭岩 脱硅 工艺 动力学 

分 类 号：P578.964[天文地球—矿物学] TF046.2[天文地球—地质学]