Liquid–Liquid Extraction Characteristics of a Spray Column with a D.C. Electric Field

抄録

Axial mixing in the continuous phase and the mass transfer characteristics of a new spray column with four rod electrodes were examined in a range of applied voltages up to 23 kV using a system of water drops in cyclohexane. Iodine was used as a transfer solute for measuring the mass transfer rate and as a tracer for measuring liquid mixing in the continuous phase. The axial dispersion coefficients under applied voltages showed lower values than that in the absence of applied voltage. The extraction efficiencies were increased by about 50 percent for applied voltages of up to 23 kV. It is concluded that these significant enhancement of mass transfer were due to the increased frequency of coalescence and redispersion of the drops.