Javad Saien - Department of Applied Chemistry, Bu-Ali Sina University, Hamedan, ۶۵۱۷۴, Iran
Hamid Bamdadi - Department of Applied Chemistry, Bu-Ali Sina University, Hamedan, ۶۵۱۷۴, Iran

The effect of modified magnetic nanoparticles on hydrodynamic and mass transfer of the liquid-liquid extraction process was investigated. Mass transfer coefficient of acetic acid from toluene drops to the continuous aqueous phase was obtained. Single layer oleic acid-coated Fe3O4 nanoparticles were used. For the acetic acid analysis, titration method was used. The rate of mass transfer is closely depends to the Brownian motion and electrical double layer in the drops which causes turbulence and subsequently, mass transfer coefficient increases. Mass transfer coefficient first increases and then decrases rapidly with increased of nanoparticle concentration. The maximum mass transfer with about 0.002 wt % nano materials provides the highest rates for different drop sizes

Liquid-liquid extraction, Nanoparticles, Mass transfer coefficient