搅拌萃取塔液泛速度和滞存率的研究  

INVESTIGATION ON DISPERSED PHASE HOLDUP AND FLOODING VELOCITY OF AGITATING EXTRACTION COLUMN

作　　者：郭翠梨[1] 陆红[1] 胡彤宇[1] 张金利[1] 

机构地区：[1]天津大学化工学院,天津300072

出　　处：《天津大学学报（自然科学与工程技术版）》2000年第6期784-787,共4页Journal of Tianjin University：Science and Technology

摘　　要：在内径为 90 mm的搅拌萃取塔中 ,对分散相滞存率和液泛速度进行了研究 .实验用的物系为煤油 -水、煤油 - 15 %甘油水、锭子油 -水、2 -乙基己醇 -水 .实验结果表明 :转速、相比、物性对液泛速度、滞存率都有影响 ,而且在较低能耗下搅拌萃取塔处理界面张力大的物系时显示出较大优越性 .同时 ,利用因次分析法 。The dispersed holdup and flooding velocity of an agitating extraction column with a diameter of 90 mm are investigated.Four systems used in this work are kerosene～water,kerosene～15%glycerol,machinery oil～water,and 2—ethyl—hexanol～water.The results show that both holdup and flooding velocity are affected by the following factors:rotation speed,phase ratio,physical properties of the system.The agitating extraction column has an advantage in the application to systems with high interfacial tension.In terms of experimental data,the correlation of the dispersed phase holdup and flooding velocity based on the dimensional analysis is respectively obtained.

关 键 词：搅拌萃取塔 液泛速度 滞存率 关联式 液-液萃取 

分 类 号：TQ028.32[化学工程]