非氰浸金技术发展现状及应用前景  

Development of non-cyanide gold leaching technology: review and application prospects

作　　者：胡杨甲 贺政 赵志强 罗思岗 赵杰 Hu Yangjia;He Zheng;Zhao Zhiqiang;Luo Sigang;Zhao Jie(State Key Laboratory of Mineral Processing,Beijing General Research Institute of Mining&Metallurgy)

机构地区：[1]北京矿冶科技集团有限公司矿物加工科学与技术国家重点实验室

出　　处：《黄金》2018年第4期53-58,共6页Gold

基　　金："十二五"国家科技支撑计划课题(2015BAB13B02)

摘　　要：氰化法浸金尽管应用广泛,但其浸出剂氰化物有剧毒,使用不当会严重污染环境和危害人身安全。而非氰浸金技术具有浸出速度快,杂质影响小,低毒甚至无毒等优点,已成为目前黄金湿法冶炼领域一项重要研究课题。总结了硫脲法、硫代硫酸盐法、卤素法、多硫化物法、石硫合剂法和生物法等主要非氰浸金技术研究现状,分析了其浸金机理及优缺点,并对非氰浸金技术尤其是硫代硫酸盐浸金应用前景进行了展望。Cyanidation is widely applied in gold leaching.However,cyanide used as its lixiviant has toxicity,and misuse of cyanide can severely pollute the environment and be hazardous to human health.Non-cyanide leaching technology has the advantages of non-toxic(or low toxicity),high leaching velocity and strong adaptability to certain impurities,and is becoming an important study subject of hydrometallurgical process for gold leaching.In this paper,the most widely-researched alternative lixiviants for gold ores such as thiourea,thiosulfate,halogen,polysulfide,lime-sulfide synthetic solution and bio-leaching technology and so on are reviewed.The mechanism and advantages&disadvantages of the above technologies are analyzed,and the application of non-cyanide technology,especially thiosulfate gold leaching was prospected.

关 键 词：非氰浸金 硫脲 硫代硫酸盐 卤素 石硫合剂 生物法 氰化物 

分 类 号：TD953[矿业工程—选矿]