INFLUENCE OF MIXING INTENSITY ON THE MASS-TRANSFER COEFFICIENT ACROSSLIQUID-LIQUID INTERFACES

The influence of mixing intensity on the liquid-liquid mass transfer h ave been investigated using a binary system (water/n-butanol) in a mod ified stirred cell type contactor which overcomes the shortcomings ass ociated with the previous contactors. It is observed that the mass tra nsfer coefficient is affected by the degree of mixing intensity in bot h phases. The dependence of the aqueous and organic mass transfer coef ficients on the mixing rate is about the same when both phases are agi tated at the same speed and these coefficients become asymptotic value s for the coefficients obtained at non identical agitation rate in bot h phases.