硫代硫酸盐法浸金研究进展  

Progress in Gold Leaching by Thiosulfate Method

作　　者：马燕 乔晋玺 曹疆 陈爱良 金攀富 张希军[2,3] 孙丰龙 MA Yan;QIAO Jinxi;CAO Jiang;CHEN Ailiang;JIN Panfu;ZHANG Xijun;SUN Fenglong(School of Metallurgy and Environment,Central South University,Changsha 410083,China;Jinchuan Group Co.,Ltd,Jinchang 737100,China;National Key Laboratory of Ni&Co Associated Minerals Resources De-velopment and Comprehensive Utilization,Jinchang 737100,China)

机构地区：[1]中南大学冶金与环境学院,湖南长沙410083 [2]金川集团股份有限公司,甘肃金昌737100 [3]镍钴共伴生资源开发与综合利用全国重点实验室,甘肃金昌737100

出　　处：《铜业工程》2024年第4期71-79,共9页Copper Engineering

基　　金：国家自然科学基金项目(52374363);国家重点研发计划项目(2022YFC3902001)资助。

摘　　要：硫代硫酸盐法浸金具有浸出速率快、成本低、环保性较好等优点,被认为是最有可能替代氰化浸金的提金方法。本文从浸金原理、实验条件及产业化情况等方面系统介绍了5种含铜体系(Cu^(2+)-NH_(3)-S_(2)O_(3)^(2⁻)体系、Cu^(2+)-EDTA-S_(2)O_(3)^(2⁻)体系、Cu^(2+)-en-S_(2)O_(3)^(2⁻)体系、Cu^(2+)-LH-24⁻-S_(2)O_(3)^(2⁻)体系、Cu^(2+)-Gly-S_(2)O_(3)^(2⁻)体系)和2种不含铜体系(Cl⁻-NH_(3)-S_(2)O_(3)^(2⁻)体系、Fe^(3+)-C_(2)O_(4)^(2⁻)-S_(2)O_(3)^(2⁻)体系)的研究进展,并对硫代硫酸盐法浸金的不同浸金体系进行对比分析。最后,总结了硫代硫酸盐法浸金在工业应用方面存在的难题及解决措施,以期为产业化应用提供理论借鉴。Gold leaching by thiosulfate method has the advantages of fast leaching rate,economical price and better environmental pro⁃tection,which is considered as the most likely alternative to cyanide leaching for gold extraction.In this paper,five copper-containing systems(Cu^(2+)-NH_(3)-S_(2)O_(3)^(2⁻)system,Cu^(2+)-EDTA-S_(2)O_(3)^(2⁻)system,Cu^(2+)-en-S_(2)O_(3)^(2⁻)system,Cu^(2+)-LH-24⁻-S_(2)O_(3)^(2⁻)system,Cu^(2+)-Gly-S_(2)O_(3)^(2⁻)system),and two copper-free systems(Cl⁻-NH_(3)-S_(2)O_(3)^(2⁻)system,Fe^(3+)-C_(2)O_(4)^(2⁻)-S_(2)O_(3)^(2⁻)system)and to provide a comparative analysis.Finally,the diffi⁃culties in the industrial application of gold leaching by thiosulfate method are summarized and the solution measures are proposed to provide theoretical reference for its industrial application.

关 键 词：硫代硫酸盐 浸金 含铜体系 不含铜体系 

分 类 号：TF831[冶金工程—有色金属冶金]