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Alejandro R.Alonso等在控制电位条件下,用旋转圆盘电极反应器,对含有0.2 mol/L Na_2S_2 O_3,0.05 mol/L CuSO_4,0.025 mol/L EDTA,0.6 mo/L NH_3,1×10~(-3)mol/L AgNO_3的人工模拟溶液进行了系统的电化学研究,目的是确定选择性电积银时的最小化干扰条件。试验发现,1.0×10~(-3)%的金的存在可强化金-银合金的沉淀,而对铜离子的沉淀影响很小。将此结果与以前用硫化物精矿的浸出
Alejandro R. Alonso and other controlled potentials, with rotating disk electrode reactor containing 0.2 mol / L Na 2 S 2 O 3, 0.05 mol / L CuSO 4, 0.025 mol / L EDTA, 0.6 mol / L NH 3, (-3) mol / L AgNO 3 artificial simulated solution system electrochemical studies, the purpose is to determine the selective electrowinning silver minimum interference conditions. It was found that the presence of 1.0 × 10 -3% Au could strengthen the precipitation of gold-silver alloy, but had little effect on the precipitation of copper ions. This result is compared with previous leaching of sulphide concentrates