ABSTRACT

With the decrease, dilution and oxidation of sulphide copper ores, exploitation and utilization of copper oxide ores are becoming more and more important (Liu et al., 2012). So studies on beneficiation of copper oxide ores, especially, complex and refractory copper oxide ores have become an important study direction of copper ores beneficiation. One copper ore from Dongchuan, Yunnan province characterized by high oxidation rate, binding rate, calcium-magnesium minerals contents and incident argillization (Wen et al., 2012). Aiming at characteristics of this ore, copper was floated and recovered

Contents of CaO and MgO, the main gangue components, are 20.97% and 12.86% respectively.