The effect of cobalt and nickel ions on gold dissolution in a thiosulfate-ethylenediamine (en)-Cu2+ system
作者： Yanhe Nie , Heng Chi , Futing Zi , Xianzhi Hu , Hong Yu
DOI: 10.1016/J.MINENG.2015.09.010
关键词:
摘要: Abstract A study has been conducted to understand how the cobalt and nickel ions affect dissolution behavior of gold thiosulfate consumption in thiosulfate-ethylenediamine (en)-Cu 2+ system. The enhance within concentration range used this experiment, but there was almost no additional consumption. copper(II) complex with en decreases presence Co . redox/mixed potentials ( E Pt Au ) are measured using platinum electrodes immersed a leaching test results show that Ni increase do not significantly change leached foils were analyzed by XPS. metallic could morphology surface such passivated products containing sulfur would decrease be easily dissolved.
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