φ15O脉冲筛板柱传质特性研究  

STUDY ON MASS TRANSFER CHARACTER IN THE 150mm DIAMETER PULSED SIEVE-PLATE EXTRACTION COLUMN

作　　者：邱学青[1] 杨东杰[1] 钱宇[1] 费维扬[1] 

机构地区：[1]华南理工大学化工研究所,清华大学化工系

出　　处：《化学工程》1995年第1期31-36,共6页Chemical Engineering(China)

摘　　要：在φ１５０ｍｍ的脉冲筛板萃取柱中，测定了两相稳态浓度剖面、分散相存留分数、液滴平均直径等数据。采用返流模型，引入虚拟变量，求得真实传质系数Ｋ＿（ｏｘ）。还讨论了萃取柱中各参数随操作条件的变化规律，并和φ４０萃取柱的传质特性进行了比较。he datums of the two phases solute concentration profiles in steady state, droplet size and thedispersed phase hold-up etc. are measured in the 150mm diameter pulsed sieve-plate extraction col-umn. The“true” interphase mass transfer coefficient K_(ox) is estimated from the backflow model bv in-troducing the pseudo-variable.The change relationship between the parameter in the extraction columnand the operating condition is discussed, and compared with the mass transfer character in the 40mmdiameter extraction column.

关 键 词：筛板 萃取柱 传质 液-液分离 分离 

分 类 号：TQ028.46[化学工程]