硫氰酸盐浸金研究进展  

Review of Gold Leaching by Thiocyanate

作　　者：吴浩[1] 黄万抚[1] 邱峰[1] 胡雪飞[1] WU Hao;HUANG Wanfu;QIU Feng;HU Xuefei(School of Resource and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi, China)

机构地区：[1]江西理工大学资源与环境工程学院,江西赣州341000

出　　处：《贵金属》2016年第3期72-78,共7页Precious Metals

基　　金：国家十二五科技支撑计划课题(复杂钨铜钼铋资源综合回收关键技术研究;2012BAB10B03)

摘　　要：硫氰酸盐是一种高效、稳定、环保的金矿物浸出剂。讨论了硫氰酸盐浸金机理,从电化学角度阐述了浸出过程发生的反应与可行性,总结了焙烧氧化、加压氧化、化学氧化等预处理方法对硫氰酸盐浸金工艺的影响,归纳了浸出工艺参数浸出剂、氧化剂、p H、杂质离子、硫脲在浸金过程的作用,概括了硫氰酸盐浸出贵液中回收金的方法。从应用、工艺、机理角度概述了硫氰酸盐浸金体系近年来的研究与发展,并提出存在的问题与不足,指出了硫氰酸盐浸金的研究方向。Thiocyanate leaching is a technology with efficient, stable and environmental friendly advantages. The working principles of thiocyanate leaching of gold were introduced, the reaction and feasibility of leaching process were expounded from the electrochemical point of view. The effects of pretreatment methods, such as roasting oxidation, pressure oxidation and chemical oxidation, were summarized. And also, the effects of leaching parameters, such as leaching agent, oxidant, pH, impurity ion and thiourea were summarized. And it was surveyed that the methods for recovering gold from leach liquor. In this paper, the research and development of leaching gold system was summarized in angles of application, technology and mechanism. The problems and deficiencies were put forward, and the research direction was pointed out.

关 键 词：有色金属冶金 无氰工艺 浸金 硫氰酸盐 

分 类 号：TD953[矿业工程—选矿] TF831[冶金工程—有色金属冶金]