含铜络离子对硫代硫酸盐法提金过程影响  

Influence of copper-containing complex ionson the thiosulfate leaching process for gold recovery

作　　者：张洋 崔毅琦[1,2,3] 席欣月 黄典强 肖有明 王靖 Zhang Yang;Cui Yiqi;Xi Xinyue;Huang Dianqiang;Xiao Youming;Wang Jing(College of Land Resources Engineering,Kunming University of Science and Technology;State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization,a State-Ministry Cooperative Building Base;Yunnan Metal Tailings Resources Secondary Utilization Engineering Research Center)

机构地区：[1]昆明理工大学国土资源工程学院 [2]省部共建复杂有色金属资源清洁利用国家重点实验室 [3]云南省金属尾矿资源二次利用工程研究中心

出　　处：《黄金》2024年第1期39-42,共4页Gold

基　　金：国家自然科学基金项目(52364032)。

摘　　要：硫代硫酸盐法是一种绿色、高效的提金方法,含铜氨性硫代硫酸盐体系是常见的硫代硫酸盐提金体系。该体系中,铜离子可与氨和硫代硫酸根离子分别形成四氨合铜络离子和硫代硫酸铜络离子,这些络离子不仅在金矿物溶解过程中起着至关重要的作用,同时也会对回收过程中金的沉积与吸附产生一定影响。介绍了硫代硫酸盐法提金机理及含铜络离子在提金过程中的作用,并分析了几种常见提金方法中含铜络离子对金回收过程的影响。同时,指出了从硫代硫酸盐贵液中回收金的发展方向。The thiosulfate leaching process is a green and efficient method for gold recovery,and the copper-containing ammoniacal thiosulfate system is a common thiosulfate leaching system.In this system,copper ions can form complex ions such as copper tetraminothiate and copper thiosulfate with ammonia and thiosulfate ions,respectively.These complex ions play a crucial role in the dissolution of gold minerals and also have an impact on the deposition and adsorption of gold during the recovery process.This study introduces the mechanism of thiosulfate leaching for gold recovery and the role of copper-containing complex ions in the leaching process.It also analyzes the influence of copper-containing complex ions on several commonly used gold recovery methods.Furthermore,the development direction of gold recovery from thiosulfate-rich solutions is discussed.

关 键 词：硫代硫酸盐体系 金 含铜络离子 置换法 树脂吸附法 

分 类 号：TD953[矿业工程—选矿]