山东某氰渣综合回收铁试验研究  

Research on comprehensive recovery of iron from cyanide residue in Shandong

作　　者：董鸿良 黄恩铭 宋宝旭 孙晓妍 周永星 郭思瑶 马芳源 Dong Hongliang;Huang Enming;Song Baoxu;Sun Xiaoyan;Zhou Yongxing;Guo Siyao;Ma Fangyuan(Shandong Yantai Xintai Gold Mining Co.,Ltd.;School of Mining Engineering,Liaoning University of Science and Technology)

机构地区：[1]山东烟台鑫泰黄金矿业有限责任公司 [2]辽宁科技大学矿业工程学院

出　　处：《黄金》2024年第1期43-46,51,共5页Gold

基　　金：辽宁省教育厅基本科研项目(LJKMZ20220650)。

摘　　要：山东某黄金选冶厂氰渣中主要有价元素为铁,品位为20.29%,矿物主要以磁铁矿、褐铁矿、硅铁矿形式存在。因该氰渣嵌布粒度微细,且褐铁矿理论含铁偏低,为了尽可能获得高品位铁精矿,开展了选矿试验研究。试验结果表明:采用弱磁粗选—强磁粗选—摇床精选联合工艺流程可实现铁资源的回收利用。若将弱磁精矿、摇床中矿、摇床精矿合一可获得铁品位为59.27%、铁回收率为48.01%的铁精矿;若将弱磁精矿、摇床精矿合一,可获得铁品位为61.21%、铁回收率为46.66%的铁精矿。The main valuable element in the cyanide residue of a gold smelting plant in Shandong is iron,with an iron grade of 20.29%.Iron minerals mainly exist in the form of magnetite,limonite,and fersilicite.Due to the fine parti cle size of the cyanide residue and the low theoretical iron content of limonite,beneficiation tests were carried out to obtain high-grade iron concentrates as much as possible.The experimental results show that the combined process of weak magnetic roughing-strong magnetic roughing-table cleaning can achieve the recovery and utilization of iron resources.If the weak magnetic concentrate,table middling,and table concentrate are combined,iron concentrates with iron grades of 59.27%and an iron recovery rate of 48.01%can be obtained.If the weak magnetic concentrate and table concentrate are combined,iron concentrate with an iron grade of 61.21%and an iron recovery rate of 46.66%can be obtained.

关 键 词：氰渣 磁选 联合工艺 重选 综合回收 

分 类 号：TD982[矿业工程—选矿]