On the kinetics of precipitate flotation of Cr III using sodium dodecylsulfate and ethanol

The results of the zeta potential and the floatability studies of chromium hydroxide precipitates showed that the isoelectric point (IEP) of Cr(OH)3 was around pH = 8.5 and a 96.2% maximum removal was achieved at pH around 8.0. The flotation kinetics of chromium precipitates was studied based on the integral and the differential methods and found to follow a first order rate equation.