Kojemyak M. Extract extractants from their emulsions and aqueous solutions by flotation and adsorption

Thesis is devoted to the establishment of colloid-chemical laws extractants extract different classes of their emulsions and aqueous solutions by flotation, adsorption, miсroflotoextraction, adsorption flotation and flocculation flotation. For the first time to study the effect of basic flotation process parameters (pH, duration (time) of the flotation temperature, addition of reagents (surface-active compounds (surfactants), flocculants, coagulants) on the efficiency of extraction of primary aliphatic alcohols (PAA), tributyl phosphate (TBP) fatty acids and naphthenic, technical amines, butyl acetate. Experimentally demonstrated the possibility of intensification of flotation extraction of fatty acids by a combination of flotation extraction (miсroflotoextraction), adsorption (adsorption flotation) and flocculation (flocculation flotation). The optimal conditions of these processes (pH, reagent consumption, duration of flotation). The conditions for intensification of flotation extraction fine emulsified TBP using anionic surfactants (alkyl carboxylates potassium (ACP)).The possibility of using the theory of stability of hydrophobic colloids (DLFO theory) to explain the mechanism of the effect of pH and the nature of the surfactant (flotation collectors) on the degree of flotation extraction emulsified extractants. Systematic research aimed at studying the mechanism and thermodynamics of ad-sorption of extractants from their aqueous solutions on kaolin, potassium mica (muscovite), silica (TBP) and chitosan (PAA). The conditions of the desorption from the surface of TBP adsorbents for its subsequent extraction from aqueous solutions by flotation and returns to production. Keywords: extractant, emulsion, flotation, adsorption, miсroflotoextraction, adsorption flotation, flocculation flotation, finely dispersed agents, wastewater treatment.