Farideh Ghasempour - Engineering College, Chemical Engineering Faculty, University of Tehran, Iran . Energy conservation and management office, National Iranian Oi Products Distribution Company (NIOPDC)
Hossein Bahmanyar - Engineering College, Chemical Engineering Faculty, University of Tehran, Iran

Pulsed column, one of the most important liquid-liquid extractors, has an extensive application in different industries. In this paper, after knowing the most remarkable features of pulsed columns, the effects of the dispersed and continuous phase's volumetric rates, pulsation rate and interfacial tension in without mass transfer conditions have been studied. The results show that by increasing of those effective operatingparameters except interfacial tension, having reverse effect on the starting point of the flooding, the column floods rapidly. On the other hand, by increasing of pulsation rate the slip velocities have two different behaviors, the pulsation rates should segregate in to upper and lower than 3 (cm/sec). Generally the proportionality between the slip velocities and pulsation rates in two above mentioned zones are found.

Liquid-Liquid Extraction, pulsed sieve perforated plate column, flooding, slip velocity