ELECTRO AND CONVENTIONAL FLOTATION STUDIES ON QUARTZ

Electro and conventional flotation experiments were carried out on nar row size quartz fractions using Dodecylamine hydrochloride (C12H25NH3C l), a cationic collector. The recovery values obtained in electroflota tion were compared keeping the bubble surface area in one case and the bubble flux in the other case constant in both electro and convention al flotation. In electrolytic flotation, hydrogen bubbles were generat ed at stainless steel plate cathode under different current densities. In conventional flotation, high purity cylinder nitrogen gas was pass ed through sintered frits of differing porosity. A video camera system was used to measure the bubble sizes generated under various experime ntal conditions. The results reveal that bubble size and bubble flux p lay a vital role in determining the flotation recovery.