E-pH图可以描述反应中各组分生成之条件及各组分稳定区在E-pH的范围,对于了解和预测湿法冶金的平衡反应很有帮助。人们从这些E-pH图可以了解在特定的E-pH条件下水溶性物质和固相的稳定范围,因此,E-pH图广泛受到湿法冶金者的重视。近年来用还原——氨浸法处理铜、镍、钻之氧化贫矿如红土矿及海洋结核矿,在生 The E-pH diagram can describe the conditions for the formation of each component in the reaction and the range of the E-pH of the stable region of each component, which is helpful for understanding and predicting the equilibrium reaction of the hydrometallurgy. From these E-pH maps, one can understand the range of stability of the water-soluble substance and the solid phase under the specific E-pH conditions. Therefore, the E-pH map is widely regarded by the hydrometallurgy people. In recent years with the reduction - ammonia leaching treatment of copper, nickel, oxygenated lean drilling such as laterite ore and marine nodules, students