【摘要】 <正> 高纯超细氧化铝是重要的功能材料,其制备方法有拜耳法、硫酸铝铵热解法、碱式碳酸铝铵热解法和近期开发的有机铝水解热解法。本文报道用醇铝水解法获得水合氧化铝,通过高温焙烧制备超微细高纯氧化铝。本法工艺简单,水解反应后在同一容器中通过蒸馏回收醇,水解产物可以不经过滤、烘干和粉碎处理直接进高温炉焙烧,原料消耗小,无污染,制得氧化铝的粒度比其他方法细而均匀、纯度高。更多还原

【Abstract】 Ultrafine high-purity alumina has been prepared by hydrolysis of aluminium isopropylate in yield 95%. By this technology the isopropyl alcohol from alcoholed can be recovered and used repeatedly. The a-Al₂O₃ obtained by this process has a high-bulk density with relative uniform particle size.The average particle size is 0. 3 to 0. 03 μm, in purify of 99. 99%.更多还原