摘要
生产硫酸铝排出尾渣 ,其主要矿物是高岭土和一水铝石 .对尾渣进行煅烧处理 ,采用差热 -热重和 XRD对样品进行微结构研究 ,在 70 0℃～ 1 0 0 0℃煅烧主要物相是无定形偏高岭相 ,具有较大的内比表面积和较高的火山灰活性 .研究表明 ,将经过煅烧处理的硫酸铝尾渣和高效减水剂共同掺入水泥中 。
Main minerals in the aluminum sulfate tailings are kaolinite and bochmite AlOOH. The microstructure of the samples of calcined tailings was investigated by differential thermal analysis, thermogriavmetry and X ray diffraction. The main minerals of tailings calcined at temperatures between 700℃~1000℃ are found to be amorphous metakaolinite that has a large internal specific surface and high volcanic ash activity. It is also found that the cement mixed with the tailings calcined at different temperatures and water reducing agent.
出处
《华中理工大学学报》
CSCD
北大核心
2000年第2期108-110,共3页
Journal of Huazhong University of Science and Technology
关键词
偏高岭土
火山灰
活性
硫酸铝渣
煅烧
水泥
metakaolinite
volcanic ash activity
aluminum sulfate tailings
