Foam separation of surfactant components from mixtures

Foam separation of surfactant components from mixtures 

In the previous sections the results of surfactant accumulation by foam or purification of a solution from surfactants were considered mostly for binary systems. The aim was to increase the accumulation ratio or the degree of extraction of one of the components with the 

The basic relation between the mole fraction of the i-th component in a system (Nj) and the change in the total number of moles (m) during the process of surface separation can be presented as follows 

Surface separation theory implies that the effectiveness of separation is determined mostly by the selectivity coefficients of the components. 

The selectivity of isolation of inorganic ions in a foam [105] during their simultaneous adsorption with cetylpyridinium chloride ion increases in the sequence Cl Br I SCN In this sequence the adsorption increases from 1.39-10 10 to 2.8-10 10 mol cm 2. The use of reflux (dephlegmation) which changes the ratio between the components, increases the 

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