| The flotation behaviors of chalcopyrite and pyrite under electrochemical control using collector or without collector, and the effect of modifier such as CaO, CaOCL,have been investigated. Results demonstrate that the separating flotation of chalcopyrite and pyrite depends not only on high pH value and oxidation in pulp, but also on pulp potential and components of chemicals used. The CaOCl2 can be efficiently used to supply high pH value and oxidation in flotation process of chalcopyrite and pyrite. In addition, the flotation mechanism is also discussed. |