Froth flotation: kinetic models based on chemical analogy

This paper studies several kinetic aspects of flotation of celestite and ca lcite in a mechanical cell with sodium dodecylsulphate as the collector age nt, using pure minerals ranging in average particle size between 137 and 74 mum, respectively, with a constant pH 3 in the flotation bath in all exper iments. The results obtained indicate that both minerals float rapidly and that the flotation rate constant responds to a non-integral order equation. Likewise, a linear relationship exists between flotation rate and particle diameter. (C) 2001 Elsevier Science B.V. All rights reserved.