【摘要】 用电极过程动力学对从氰化贵液中直接电沉积金过程进行分析,可得出提高Au(CN)2-离子与阴极碰撞几率和减小析H2副反应是提高电沉积金效率的关键因素。采用多孔电极、析出H2小的电极材料和分两段电解措施,使从低浓度含金贵液中直接电沉积金的效率达到98%以上。更多还原

【Abstract】 Based on analysis of direct gold electrowinning process in view of electrode process kinetics,Key factors of getting high recoveries of gold electrowinning are raising valid collision chance of Au（CN）^-₂ ions to surface of cathode electrode and lowering vice reaction about H₂.The recoverits of gold electrowinning from dilute cyanide solutions is about 98% by means of using porous electrode, lowering vice reaction of H₂ and two stage electrolysis.更多还原