【摘要】 经XRD证实永城煤矸石是砂质泥岩。其主要粘土矿物是高岭石,但加热相变有别于纯净的高岭石。当煅烧温度900℃时,活性来自偏高岭石的生成。当煅烧温度约1100℃时,生成相当数量的莫来石的同时存在较多的玻璃体,以致也具有良好的活性。更多还原

【Abstract】 The fact that coal mine refuse of Yongcheng is sandy mudstone was confirmed by XRD. Although the main clay mineral is Kaolinite.the structural change during heating is different from pure kaolinite. When the temperature of calcination reaches 900℃, the activity comes from the production of metakaolinite. When the temperature of calcination reaches 1100℃, a lot of mullite as well as certain quantity of vitrified substance are produced and they have good activity.更多还原