醇水共沉淀法制备氧化锆超细粉末及团聚控制  

Preparation and agglomeration control of zirconia nano-powder by alcohol-aqueous co-precipitation method

作　　者：王开军[1] 胡劲[1] 刘建良[1] 张云峰 

机构地区：[1]昆明贵金属研究所,云南昆明650221 [2]昆明贵研催化剂有限责任公司

出　　处：《无机盐工业》2007年第3期25-27,共3页Inorganic Chemicals Industry

基　　金：云南省科研院所技术开发研究专项基金项目(项目编号:2004KFZX-07)

摘　　要：以氯氧化锆和氨水为原料,在醇水溶液中制得氧化锆前驱体,经过陈化和低温处理后干燥,前驱体在600℃下煅烧后球磨得到氧化锆超细粉末。采用TG-DSC,XRD,TEM分别对制备的粉末进行了分析。研究表明在共沉淀过程中引入无水乙醇,采用低温处理工艺,能减少粉末的团聚,避免硬团聚的形成。运用该方法可以制备出粒度为20-30 nm、少团聚的超细氧化锆粉末。Zireonia precursor was prepared in the alcohol - aqueous solution by raw materials of ZrOCl2 · 8H2O and ammonia. The zirconia powders were subsequently obtained by bali milling after calcination of the precursor at 600 ℃. Through the analysis of TG - DSC, XRD and TEM, the results showed the agglomeration of powders can be reduced and the formation of hard agglomeration can be avoided if introduce anhydrous ethanol during the co - precipitation and adopt low - temperature treatment process. The superfine zirconia powder with the particle size of 20 - 30 nm and less agglomeration can be prepared by this method.

关 键 词：氧化锆 超细粉末 醇水共沉淀法 团聚 

分 类 号：TQ134.12[化学工程—无机化工]