高铝粉煤灰酸法提铝尾渣制备超细白炭黑及应用研究  

Research on Preparation and Application of Silica from Aluminum Tailings by acid Leaching of Alumina Powder Coal Ash

作　　者：胡锐[1] 贺洋[1] 

机构地区：[1]苏州中材非金属矿工业设计研究院有限公司,江苏苏州215004

出　　处：《矿产综合利用》2016年第6期65-67,共3页Multipurpose Utilization of Mineral Resources

摘　　要：以高铝粉煤灰酸法提铝为原料,在常压下通过碱溶使原料中的Si O2转化为硅酸钠,再利用化学沉淀法,制备了超细白炭黑;采用粒度仪、白度仪、SEM、XRD等方法对制备的白炭黑进行了表征。结果表明:该白炭黑纯度高,粒度细,比表面积大,对高分子聚合物的补强效果明显。该方法工艺简单,成本低廉,既解决了尾矿堆积问题,又大大降低了白灰黑的生产成本,对白炭黑的生产具在重要指导意义。Using the residue of extracting aluminum from fly ash as raw material, under the normal pressure by alkali soluble SiO2 into sodium silicate in the material, the silica was obtained through the chemical depositing method. The silica was characterized by grain size analyser, whiteness apparatus, SEM, XRD. The results showed that the silica can reinforce polymerobviously with fine particle size, high process with low cost, can not only solve the problem of cost ,which has the important guiding significance.

关 键 词：白炭黑 化学沉淀 补强 

分 类 号：TD989[矿业工程—选矿] TB332[一般工业技术—材料科学与工程]