应用化学 ›› 1993, Vol. 0 ›› Issue (5): 99-101.

• 研究简报 • 上一篇    下一篇

异丙醇铝水解制备超微细高纯氧化铝

张美鸽, 林兰生, 赵高伦, 白东文   

  1. 浙江省明矾石综合利用研究所 325028 温州
  • 收稿日期:1992-11-16 修回日期:1993-05-26 出版日期:1993-10-10 发布日期:1993-10-10

ULTRAFINE HIGH-PURITY ALUMINA PREPARED BY HYDROLYSIS OF ALUMINIUM ISOPROPYLATE

Zhang Meige, Lin Lansheng, Zhao Gaolun, Bai Dongwen   

  1. Zhejiang Provincial Institute of Comprehensive Utilization of Alunite, 325028 Wenzhou
  • Received:1992-11-16 Revised:1993-05-26 Published:1993-10-10 Online:1993-10-10

摘要: 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。

关键词: 异丙醇铝, 水解, 超细粉末, 制备

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 α-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%.

Key words: aluminium isopropylate, hydrolysis, alumina, ultra-fine powder, preparation