The downstream processing of leachates arising from the dissolution of copper bearing gold ores in cyanide-starved alkaline glycine solutions is imperative for the successful implementation of the new leach system at industry level. This study investigates the behaviour of gold adsorption onto activated carbon in the presence of copper from cyanide-starved glycine solutions. The adsorption behaviour was kinetically investigated using the Fleming k,n model. The model had a high consistency with experimental data (up to 6 h) for both gold and copper as evidenced by the regression coefficient (R²) values which were close to 1. The effects of important parameters including glycine concentration, solution pH, cyanide concentration, initial gold concentration, adsorbent concentration and ionic strength of the solution were studied. The results showed that, except for initial gold and carbon concentrations, a variation of these major factors had a pronounced effect on copper adsorption and slightly affected the gold adsorption, both in terms of adsorption rate and overall recovery. It was also seen that the active carbon had a high adsorption tendency towards gold over copper. The gold and copper extraction from a cyanide-glycine solution containing 2 mg/L gold, 300 mg/L copper, pH 11, 5 g/L glycine, Cu:CN of 1:1 (123 mg/L CN) and 8 g/L carbon using lime as a pH modifier reached 99.0% and 52.8% respectively. Most copper and gold was recovered in the first 6 h. The corresponding initial adsorption rates are 1263.8 h⁻¹ for gold and 19.0 h⁻¹ for copper.

由于含铜金矿石在氰化物缺乏的碱性甘氨酸溶液中的溶解而产生的浸出液的下游加工，对于在工业水平成功实施新的浸出系统至关重要。这项研究研究了在氰化物缺乏的甘氨酸溶液中存在铜的情况下，金在活性炭上的吸附行为。使用Fleming k，n模型动力学研究了吸附行为。该模型与金和铜的实验数据（长达6小时）具有高度一致性，如回归系数（R ^2）所示）值接近于1。研究了包括甘氨酸浓度，溶液pH值，氰化物浓度，初始金浓度，吸附剂浓度和溶液的离子强度等重要参数的影响。结果表明，除了初始的金和碳浓度外，这些主要因素的变化对铜的吸附有明显的影响，并且在吸附速率和总回收率方面对金的吸附都有轻微的影响。还可以看出，活性炭比铜具有更高的对金的吸附趋势。从含有2 mg / L金，300 mg / L铜，pH 11、5 g / L甘氨酸，Cu：CN 1：1（123 mg / L CN）和8 g的氰化物-甘氨酸溶液中提取金和铜使用石灰作为pH调节剂的/ L碳分别达到99.0％和52.8％。在最初的6小时内，大多数铜和金都被回收了。相应的初始吸附速率为1263.8 h^-1黄金和19.0ħ ^-1为铜。