The electroflotation extraction of highly dispersed TiO 2 and Ti (OH) 4 particles has been studied. It was found that in aqueous solutions of electrolytes at pH = 2 ... 12 electroflotation of TiO 2 proceeds ineffectively: the degree of extraction is 10 ... 15 & # 37;. In the presence of a surfactant, the degree of extraction is 25 ... 30 & # 37;, in the presence of a surfactant and a coagulant Fe +3 ? 90 ... 95 & # 37 ;. Electroflotation of Ti (OH) 4 proceeds efficiently: the degree of extraction at pH = 3 reaches 99 & # 37;, the electroflotation time is 5 ... 10 min, energy consumption is 0.5 kWh / m3 of solution
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