有机铝水解制备亚微米高纯氧化铝  

Infenor micron high-purity alumina prepared by hydrolysis of organic aluminium

作　　者：张豪 林闯 张爱生 张美鸽 

机构地区：[1]浙江省明矾石综合利用研究所

出　　处：《科学中国人》2013年第6期75-77,共3页Scientific Chinese

基　　金：浙江省科学技术厅科研院所专项基金项目,编号:2010F20015、2011F10055

摘　　要：综述国内外高纯氧化铝的开发动向．介绍铵明矾热解法、碳酸铵铝石热解法、有机铝水解热解法、拜耳法等工艺和应用，介绍有机铝水解制备亚微米高纯氧化铝特色．该工艺中需用的醇可从醇铝水解中回收．并可作重复使用．得到α-Al2O3具有高松密度和相对均匀的粒度，平均粒径0．5-0．06μm，纯度99.99％。The development of the high-purity alumina at home and abroad is reviewed,Technologies and its applications of high-purity alumina by Bayer process,thermal decomposition of ammonium alum and ammonium aluminum carbonate hydroxide CAACH,hydrolysisthermo—decomposition process of organic aluminium and other methods are given. Inferior micron high-purity alumina has been pre-parde by hydrolysis of organic aluminium,By this technology the alcohol from alcoholed can be recovered and used repeatedly.The δ-Al203 obtained by this process has a high-bulk density with relative uniform particle size.The average particle size is 0.5-0.06mm,in purity of 99.99%。

关 键 词：拜耳 铵明矾 碳酸铵铝石 有机铝水解 氧化铝 亚微米 

分 类 号：TQ174.758[化学工程—陶瓷工业]