Ferial Nosratinia - Islamic Azad University-South Tehran Branch,Tehran,Iran,P.O.Box ۱۱۳۶۵-۴۴۳۵
Mohammadreza Omidkhah - Tarbiat Modares University, Tehran,Iran, P.O.Box ۱۴۱۵۵-۱۴۳
Ali Akbar Saifkordi - Sharif University of Technology,Tehran,Iran, P.O.Box ۱۱۳۶۵-۸۶۳۹
Dariush Bastani - Sharif University of Technology,Tehran,Iran, P.O.Box ۱۱۳۶۵-۸۶۳۹

In this research the breakup of a liquid jet, injected vertically upward into another immiscible liquid has been studied. The jet length has been measured experimentally throughout the investigation. The chemical system was chosen according to the standard test system recommended by EFCE, n-butanol-succinic acid-water as a typical example of liquid- liquid extraction system with low interfacial tension.The effect of various parameters such as nozzle diameter, jet velocity and the height of continuous phase on jet length have been investigated and the effect of mass transfer directions (from dispersed to continuous or continuous to dispersed) on jet length has also been studied.A correlation is presented in order to predict jet length as a function of physical properties of both phases and aforementioned parameters.

liquid- liquid extraction, jet breakup, jet length, jet velocity, continuous phase, dispersed phase