文献类型：期刊文献

中文题名：高松装密度CeO_2的制备研究

英文题名：Study and Preparation of Highbulk Density Cerium Dioxide

作者：徐志珍[1];杨云霞[1];袁双龙[1];赵连国[1];辛模良[2]

机构：[1]华东理工大学化学系,上海200237;[2]上海跃龙化工厂,上海200937

年份：2002

卷号：20

期号：Z3

起止页码：119

中文期刊名：中国稀土学报

外文期刊名：Journal of the Chinese Society of Rare Earths

收录：CSTPCD;;Scopus;北大核心:【北大核心2000】；CSCD:【CSCD2011_2012】；

基金：上海市科委光科技专项基金

语种：中文

中文关键词：稀土;二氧化铈;松装密度;共沉淀;澄清剂

外文关键词：rare earths; cerium dioxide; bulk density; co-precipitation; clarifier

摘要：通过CeCl3与(NH4)2C2O4共沉淀反应制备Ce2(C2O4)3前驱体。前驱体Ce2(C2O4)3经高温焙烧,得到CeO2。研究了共沉淀反应温度、pH、加料速度对CeO2松装密度的影响。结果表明,在pH为4.0左右,反应温度为20℃,加料速度为2ml·min-1的条件下,CeO2的松装密度为2.01g·cm-3。
The precursors of cerium oxalate were prepared by coprecipitating cerium chloride with ammonium oxalate, which were baked in high temperature and cerium dioxide was obtained. The effect of reactive temperature of coprecipitation, pH and feeding velocity on bulk densities of cerium dioxide was studied. When pH, reactive temperature and feeding velocity were about 4.0, 20 ℃ and 2 mol·min-1 respectively, bulk density of cerium dioxide was 2.01 g·cm-3.