高铝粉煤灰合成刚玉莫来石抛光材料的实验研究  

Experimental study of synthesizing corundum-mullite polishing materials from high aluminium fly ash

作　　者：王观鹏 王庆伟[1] 晋腾超 

机构地区：[1]河南工业大学材料科学与工程学院,河南郑州450001

出　　处：《现代化工》2015年第5期105-108,共4页Modern Chemical Industry

摘　　要：采用高铝粉煤灰合成抛光材料刚玉莫来石具有良好发展前景。通过对高铝粉煤灰进行酸碱预处理,提高高铝粉煤灰中的铝与硅的质量比,减少Al2O3的添加量,降低成本。通过对合成的刚玉莫来石进行烧失量以及XED、SEM和激光粒度分析,结果表明:合成温度升高,有利于莫来石相的形成;添加过量的Al2O3,刚玉莫来石相中刚玉相逐渐增加。The application of high alumina fly ash to prepare corundum-mullite polishing materials is promising. By using acid and alkali pretreatment, the ratio of amuminium and silicon in high alumina fly ash is improved, which reduces the addition of Al2O3 and the resulting cost. The XED ,SEM and laser particle size analyzer are used to characterize the resulting corundum-mullite polishing material. The results show that increasing the temperature is helpful to form the corundum mullite phase. The addition of an excess of Al2O3 leads to the gradual increase of corundum content in corundmn-mullite phase.

关 键 词：粉煤灰 刚玉-莫来石 抛光材料 AL2O3 

分 类 号：X773[环境科学与工程—环境工程]