Modeling the equilibrium loading of gold onto activated carbon from complex cyanide solutions

被引：0
作者：
X. Dai
P. L. Breuer
M. I. Jeffrey
机构：
[1] Parker Centre (CSIRO),Precious and Base Metals Hydrometallurgy
来源：
Mining, Metallurgy & Exploration | 2010年 / 27卷
关键词：
Gold/gold ores; Carbon-in-leach; Carbon-in-pulp; Equilibrium loading;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Gold cyanide equilibrium adsorption isotherms in the loading range typical of operating carbon-in-pulp/carbon-in-leach plants have been established and the effect of various cations and the presence of copper cyanide species quantified. It was found that the equilibrium loading of gold was enhanced by the presence of sodium or calcium, with calcium having an order of magnitude stronger effect. The presence of copper has an adverse effect on the equilibrium loading of gold. A unified model was developed to predict the effect of sodium and calcium concentrations in solution and the competitive carbon adsorption of copper on the equilibrium loading of gold on carbon. A satisfactory agreement between the measured gold equilibrium loadings and the model results was obtained over a wide range of solution conditions.
引用
收藏
页码：190 / 195
页数：5
相关论文
共 31 条
[1]  
Dai X(2010)A mechanistic model of the equilibrium adsorption of copper cyanide species onto activated carbon Hydrometallurgy 101 99-107
[2]  
Breuer PL(1974)The mechanism of gold adsorption on activated carbon Journal of the South Africa Institute of Mining and Metallurgy 75 67-76
[3]  
Jeffrey MI(1979)The use of activated carbon for the recovery of gold and silver from gold-plant solutions Journal of the South African Institute of Mining and Metallurgy 79 281-297
[4]  
Davidson RJ(1984)The absorption of gold cyanide onto activated carbon III — Factors influencing the rate of loading and the equilibrium capacity Journal of the South Africa Institute of Mining and Metallurgy 84 85-93
[5]  
Davidson RJ(2006)A comparison of several kinetic models for the adsorption of gold cyanide onto activated carbon Journal of the South African Institute of Mining and Metallurgy 91 95-103
[6]  
Veronese V(1997)The dynamic simulation of in-pulp sorption processes using the lumping of competitive and fouling phenomena Minerals Engineering 10 959-972
[7]  
Nkosi MV(1998)The quantification of shifting adsorption equilibria of gold and base metals in CIP plants Minerals Engineering 11 551-562
[8]  
Fleming CA(1980)The mechanism of the adsorption of gold cyanide on activated carbon Journal of the South African Institute of Mining and Metallurgy 80 344-356
[9]  
Nicol MJ(1984)The absorption of gold cyanide onto activated carbon I —The kinetics of absorption from pulps Journal of the South African Institute of Mining and Metallurgy 84 50-54
[10]  
Hollow JT(2001)Gold process modeling. I. Batch modeling of the processes of leaching, preg-robbing and adsorption onto activated carbon Minerals Engineering 14 753-773
1234