REGULARITIES OF SURFACTANTS ACCUMULATION AND SEPARATION IN FOAM

In the review the theoretical and experimental studies of the regulari ties of the foam adsorption accumulation and separation of substances, which are dissolved in a liquid phase in the molecular, or ionic and micellar form are described. The dependencies of the main characterist ics of foam accumulation and fractionation on the structural parameter s of the foam and their interconnection are analyzed. The quantitative relations for characteristics of the foam separation considering the influence of the foam collapse are obtained. Dependencies of the enric hment ratio on the expansion factor and the dispersity of foams and on the capillary pressure in polyhedral (dry) foams obtained from soluti ons of the individual surfactants and their mixtures are analyzed. The examples of the partial separation and the foam chromatographic of su rfactants and the brief information on the shift of equilibrium and ac celeration of chemical reactions in foam are given.