The kinetics of the electroflotation process of extraction of TiO 2 and TiN powders from wastewater has been investigated. Experimental results show that stationary values ??are reached
in 20 & mdash; 25 minutes The degree of electroflotation extraction of titanium nitride powder without additive is low and amounts to 15 - mdash; 20 & # 37 ;. Introduction of anionic surfactant NaDBS and cationic SeptaSurfactant increases the degree of extraction in NaCl up to 50 - mdash; 65 & # 37; and up to 45 & mdash; 60 & # 37; in Na 2 SO 4 . An increase in the degree of extraction of TiN is associated
with the hydrophobization of the surface and an increase in the size of the particles of the dispersed phase. The highest recovery rates are obtained by adding coagulants and a coagulant - surfactant composition.
In Na 2 SO 4 solutions, two compositions Al 3+ & mdash; NaDBS and Fe 3+ & mdash; NaDBS, the recovery is 96 & # 37 ;. High values ??of the degree of recovery are observed for TiO 2 when adding compositions Al 3+ & mdash; Surfactant and Fe 3+ & mdash; Surfactant
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