(Y,Eu)_2O_3红生粉的粒度和形貌控制研究  

On Morphology and Partical Size Conrol of (Y,Eu)_2O_3 Precursor

作　　者：赖华生[1] 王林生[1] 文小强[1] 周新华[1] 袁德林[1] 周健[1] 

机构地区：[1]赣州有色冶金研究所,江西赣州341000

出　　处：《江西有色金属》2009年第2期23-25,共3页Jiangxi Nonferrous Metals

摘　　要：以草酸共沉淀法制备(Y,Eu)2O3为红生粉,对比六种沉淀方式对红生粉形貌的影响,其中在沉淀过程中添加氨水并用双加料的方式可制备出形貌上优于红生粉商品,其粒度分布呈正态分布;通过调节草酸过量系数、沉淀过程中添加氨水的量、合成温度及草酸浓度等沉淀条件可控制红生粉D50的变化。The（Y,Eu）2O3 Precursor which is superior to commercial one on morphology was prepared by precipitation method of oxalic acid. The effect of reaction conditions on morphology and particle size of （Y,Eu）2O3 precursor was investigated. The results show the medium particle size of precursor was influenced mainly by these facts： concentration of rare earth solution, excessive amount of oxalic acid, concentration of ammonia, concentration of oxalic acid and temperature of reaction.

关 键 词：(Y Eu)2O3 形貌 粒度 

分 类 号：TF123.24[冶金工程—粉末冶金]