Floc Foam Flotation of Nickel, Chromium, Cobalt, and Manganese. Interaction in Surface Adsorption

Abstract
Adsorbing colloid flotation of nickel(II), chromium(III), cobalt(II), and manganese(II) was carried out using a variety of techniques. Satisfactory separations were developed for all but manganese; residual Mn levels could not be reduced below 0.5 mg/1, and the results were sometimes erratic. Surface potentials of flocs in the presence of adsorbable ions were calculated from a model which assumes discrete, interacting charge sites on the floc surface.