煤系煅烧高岭土颗粒湿法超细化过程的机械力化学效应

MECHANO-CHEMICAL EFFECT OF WET ULTRAFINE GRINDING OF CALCINATED COAL KAOLIN

研究了超细煤系煅烧高岭土制备过程中由于颗粒细化所产生的机械力化学效应。结果表明，湿法超细粉碎煤系煅烧高岭土颗粒，可导致颗粒晶体结构发生晶格畸变和非晶化，同时颗粒密度降低，白度有所提高。机械力化学效应使煤系煅烧高岭土产生的高活性表面和化学活性点为其进一步深加工提供了有效途径。

The mechano-chemical effect of the particles was studied in the process of preparing the ultrafinecalcinated coal kaolin by stirred mill. The result shows that wet ultrafine grinding the calcinated coal kaolin particles can lead to the change of particle crystal structure in the form of lattice distoration and non-crystallized, thedensity declining and the whiteness raising. The high actived surface or many chemical actived spots of ultrafinecalcinated coal kaolin are casier interact to surface modifiers, hence ultrafine calcinated coal kaolin can be deeperprocessed to be high quality filler or new compound matcrial of mineral.