硫酸钡纳米粉体的液相合成方法  

Preparation of Barium Sulphate Nanoparticles by Liquid Precipitation

作　　者：员汝胜[1] 刘有智[1] 李军平[1] 柳来栓[1] 

机构地区：[1]华北工学院化学工程系,太原030051

出　　处：《化学工程师》2001年第5期9-10,共2页Chemical Engineer

摘　　要：本文着重介绍硫酸钡纳米粉体的液相合成方法。以BaS和NaSO4 为原料 ,以旋转填料床为强制混合器进行液相沉淀反应。并简要阐述其中的成核机理 ,系统考察了溶液的过饱和程度、转速、分散剂等因素对平均粒径的影响 。Preparation of ultrafine barium sulphate in liquids was well investigated and introduced in this paper.In this study,barium sulphide and sodium sulphate were used as starting materials,the micro-mixing of the liquid reaction which taking place in a rotating packed bed was intensified in the extreme.The nucleation mechanism was briefly demonstrated.The effect of rotating speed,the degree of supersaturation and dispersant on the diameter of the powder were systematically investigated,and the paper stated the optimum condition in the end.

关 键 词：硫酸钡 纳米粉体 旋转填料床 液相合成 纳米级 

分 类 号：TQ132.35[化学工程—无机化工]