The possible
presence of residual flocculants or degraded derivatives in water
which is recycled back to a flotation process raises the question
about the effect of flocculants on flotation of Cu–Mo ores, and in
particular on flotation of molybdenite which is an inherently
hydrophobic mineral. These effects were studied in coal flotation,
and since coal along with graphite, molybdenite and talc belongs
to the same group of inherently hydrophobic solids there is a lot