The changing of superficial properties of some non-ferrous minerals as a result of ionic-molecular composition of flotation pulp

摘要

In the case of the non-ferrous ores' flotation, the presence of heavy metals' ions inside the flotation pulps' liquid phase leads to minerals' flotation properties' modification and influences the flotation process. This paper presents a few experiemntal measurements with respect to the surface properties of pure minerals (galena and chalcopyrite) in the presnce of ions like Pb~(2+), Zn~(2+), (Cr_2O_7)~(2-), Fe~(3+), Cu~(2+), being analyzed the variations of the quantity of the collector adsorbed on the mineral surface, of the pH, of the reduction-oxidation potential, of the surface tension, and also the influence on the flotaiton's results.