摘要
对碱回收白泥和商品PCC的粒径分布进行分析,通过探讨消化和苛化反应的影响因素,如消化温度、消化时间、绿液添加方式和生石灰性能,以改善碱回收白泥的粒径分布。结果表明:粒径分布是碱回收白泥和商品PCC的主要差距所在,通过控制反应可以降低白泥中小于2μm的细小组分含量,改善所制备碱回收白泥的应用性能。
In this paper,the particle size distribution of lime mud from alkali recovery and commercial PCC were analyzed,the influencing factors,such as slaking temperature,slaking time,adding way of green liquor,and quality of quicklime,were investigated for the improvement of particle size distribution.Results show that different particle size distribution results in the main difference in the applying performance between lime mud and commercial PCC.The component with small particle size less than 2μm could be decreased by reaction control,which will greatly enhance the application performance of lime mud.
出处
《中华纸业》
CAS
2012年第24期23-27,共5页
China Pulp & Paper Industry
基金
国家自然科学基金项目(31100436)
国家科技支撑计划课题(2011BAC11B07)
关键词
白泥
粒径分布
消化
PCC
lime mud
particle size distribution
slaking
precipitated calcium carbonate
