高温固相法制备片状氧化铝及表征  

Preparation and characterization of flaky alumina by high temperature solid phase method

作　　者：赵燕禹[1] 胡兴兰[1] 张志鸿[1] 商连弟[2] 

机构地区：[1]天津职业大学生物与环境工程学院,天津300410 [2]中海油天津化工研究设计院

出　　处：《无机盐工业》2014年第4期46-48,共3页Inorganic Chemicals Industry

基　　金：天津职业大学科学研究基金项目(20131101)

摘　　要：利用高温固相法以不同粒度的氢氧化铝为原料制备片状α-氧化铝.通过激光粒度分析仪、扫描电子显微镜及X射线衍射仪对产品进行了表征,得出了最佳制备工艺条件.结果表明,在最佳制备条件下制备的片状α-氧化铝粒度在20 μm左右,径厚比为（5～8）∶1,大多为六角形片状.并首次提出了利用吸附-脱附等温线的重叠程度来表征片状氧化铝,可在片状氧化铝制备中应用.The flaky a-alumina is prepared by high-temperature solid phase method using aluminum hydroxide with different particle sizes as raw material.The products were characterized by laser particle size analyzer, scanning electron microscopy, and X-ray diffraction, and the optimum preparation conditions were determined.Resuh showed that flaky a-alumina under the optimum preparation conditions had the particle size about 20 um, diameter to thickness ratio of（5-8）：1,and most of hexagonal flakes.And the degree of overlap of adsorption-desorption isotherms to characterize flaky alumina was first used in its preparation.

关 键 词：片状氧化铝 高温固相法 吸附-脱附等温线 

分 类 号：TQ133.1[化学工程—无机化工]