MATERIALS AND METHODS During the extraction processes in bubble extractors, one of the liquid phases is divided into
drops under the influence of the energy of the inert gas used for mixing. Typically, the dispersed
phase is a polydisperse system of droplets, the size distribution of which (or the size of the
interfacial surface) affects, firstly, the speed of the mass exchange process through the phase
interface, and secondly, the speed and completeness of phase separation in the settling part of
each stage of the extractor.