Studies on the liquid-liquid interfacial mass transfer process using holographic interferometry  

作　　者：Chaofan ZHAO Youguang MA Chunying ZHU 

机构地区：[1]School of Chemical Engineering and Technology,State Key Laboratory of Chemical Engineering,Tianjin University,Tianjin 300072,China

出　　处：《Frontiers of Chemical Science and Engineering》2008年第1期1-4,共4页化学科学与工程前沿（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China(Grant No.20476073,20176036).

摘　　要：This paper aims at the interfacial phenomena of liquid-liquid mass transfer and its characteristic.By using the real-time holographic technique,the concen-tration distributions on the aqueous side were obtained according to holographic diagrams of mass transfer of ethanol through the interface of oil and water at different initial concentrations.Furthermore,the concentrations near the interface and the mass transfer coefficients were attained.A correlation of concentration near the interface to the concentration of the solute in the oil side was proposed.An approach of interfacial energy with solute concentration was established,and the calculated results are at good agreement with the experimental data.It is indicated that the liquid-liquid mass transfer process is approximately in accordance with two-film theory,the interfacial performance may be changed by the addition of the solute,and the interface of liquid-liquid is non-equilibrium thermodynamically during the mass transfer process.

关 键 词：liquid-liquidmasstransfer holographic interferometry concentrationprofile concentrationnear the interface masstransfercoefficient interfacialnon-equilibrium 

分 类 号：TG1[金属学及工艺—金属学]