摘要
用硫酸铝铵和碳酸氢铵为原料,通过三种不同湿化工艺,制得了比表面积最高达18m^2/g的α-Al_2O_3粉体。其中倾入法较优,粉末团聚现象较弱,能简化操作,适合工业化生产。
In this study,the high purity α-Al_2O_3 powder with the largest specific surface area 18
m^2/g was prepared by wet chemical method in three routes with ammonium hydrogen car-
bonate and ammonium aluminium sulfacte as raw materials.It was found that the agglomen-
tion of α-Al_2O_3 powder prepared by pouring ammonium hydrogen carbonate solution into ammonium aluminium sulfate is weaker.Also this route can simplify processes and is suitable
to industry production.
基金
中国有色金属工业总公司资助课题
关键词
超细粉末
氧化铝
陶瓷
ammonium aluminium sulfate
ammonium hydrogen-carbonate
wet chemistry
pour method
agglomention
α-alumina
