某极难选金矿石工艺矿物学研究  

Study on Process Mineralogy of an Extremely Refractory Gold Ore

作　　者：王广伟 谢卓宏 蒲江东 Wang Guangwei;Xie Zhuohong;Pu Jiangdong(Dulan Jinhui Mining Co.,Ltd.,Golmud,Qinghai,China;Qinghai Engineering Research Center for Gold Mineral Resource Development,Dulan,Qinghai,China;Qinghai 6th Institute of Geology and Mineral Exploration,Golmud,Qinghai,China)

机构地区：[1]都兰金辉矿业有限公司,青海格尔木816000 [2]青海省金矿资源开发工程技术研究中心,青海都兰816100 [3]青海省第六地质矿产勘查院,青海格尔木816000

出　　处：《矿产综合利用》2019年第6期69-73,共5页Multipurpose Utilization of Mineral Resources

基　　金：“红旗沟-深水潭蚀变岩型难选金矿闪速浮选工艺可行性研究”项目(2017-103);青海省工程技术研究中心项目“青海省金矿资源开发工程技术研究中心”项目(2016-GX-G02)联合资助

摘　　要：青海某金矿石属极难处理金矿石,该矿石平均含金3.18 g/t,为了开发利用该金矿石,在选矿实验室对该矿石进行了常规选矿试验研究,但金的回收率仅为72%左右。为了提高本矿石的选矿指标,通过工艺矿物学研究查明了该矿石中金的主要嵌布状态、粒度大小及主要载金矿物的嵌布特征,为合理开发利用该矿产资源提供了理论依据。研究结果表明,矿石中金矿物具有嵌布粒度细、载金矿物解离困难,泥质矿物含量多、主要载金矿物种类多、极难选金含量高的特点。针对这些情况,本文对下一步研究利用该极难选含金矿石提出了可行的方案,为合理开发利用该矿石指明了方向。A gold ore in Qinghai is very difficult to treat.The average gold content of the ore is 3.18 g/t.In order to exploit and utilize the gold ore,a conventional beneficiation test was carried out in the beneficiation laboratory,but the gold recovery is only about 72%.In order to improve the beneficiation index of the ore,the main embedding distribution state,grain size and distribution characteristics of the main gold-bearing minerals in the ore were ascertained through the study of process mineralogy,which provided a theoretical basis for the rational development and utilization of the mineral resources.The results show that the gold minerals in the ores are characterized by fine dissemination size,difficult dissociation,high content of argillaceous minerals,various kinds of main gold-bearing minerals and high content of extremely refractory gold.In view of these conditions,this paper puts forward a feasible scheme for further study and utilization of the extremely difficult gold-bearing ore,and points out the direction for rational development and utilization of the ore.

关 键 词：工艺矿物学 选矿指标 单体解离度 嵌布状态 

分 类 号：TD952[矿业工程—选矿] P86[天文地球]