Collect. Czech. Chem. Commun. 1994, 59, 2235-2243

Gas-Agitated Liquid-Liquid Extraction in a Spray Column

Milan Sovilj and Goran Kneževic

Department of Chemical Engineering, Faculty of Technology, University of Novi Sad, 21000 Novi Sad, Yugoslavia


The hydrodynamic characteristics of the air water toluene three-phase system in a spray extraction column at 20 °C were examined. The average and local hold-up data of the dispersed phase were determined in dependence on the flow rates of the continuous, dispersed and gaseous phases. The average gas phase hold-up was also measured and analyzed. A comparison was made of the hydrodynamic characteristics of the two-phase (water - toluene) and three-phase (air - water - toluene) systems.