Abstract Mass transfer characteristics of liquid-liquid two-phase flow were studied in a straight tubular microchannel with a diameter of 400 μm, with deionized water as the water phase, kerosene (the solute is benzoic acid) as the oil phase and nitrogen as the gas phase. The effects of interfacial tension, viscosity and dispersed gas were investigated on the volumetric mass transfer coefficients. The results show that the extraction equilibrium is reached in the microchannel as the residence time is longer than 15 s. Liquid interfacial tension and viscosity significantly influence extraction efficiency and volumetric mass transfer coefficient. The existence of dispersed gas phases can intensify greatly liquid-liquid mass transfer efficiency.
LI Wei , ZHANG Yu, MENG Hao, FENG Zi-Yang, ZHANG Jin-Li.Mass Transfer Characteristics of Liquid-Liquid Extraction in Microchannel[J] Chemcial Industry and Engineering, 2013,V30(4): 36-41
2013, Vol. 30 
