浮-重选联合流程选别金尾矿实验研究  

Study on Separation of Gold from Tailings by Combined Floatation-Gravity Beneficiation Flowsheet

作　　者：陈广 羊坤 陈思竹 林一明 熊平 张小军 Chen Guang;Yang Kun;Chen Sizhu;Lin Yiming;Xiong Ping;Zhang Xiaojun(Sichuan Non-Ferrous Technology Group Co.,Ltd.,Chengdu,Sichuan,China;Sichuan Times Oasis Environmental Remediation Co.,Ltd.,Chengdu,Sichuan,China;Sichuan Non-ferrous Metallurgy Research Co.,Ltd.,Chengdu,Sichuan,China;Sichuan Non-Ferrous Mining and Metallurgy Technology Co.,Ltd.,Chengdu,Sichuan,China)

机构地区：[1]四川省有色科技集团有限责任公司,四川成都610051 [2]四川时代绿洲环境修复股份有限公司,四川成都610000 [3]四川省有色冶金研究院有限公司,四川成都610051 [4]四川省有色矿冶科技有限公司,四川成都610051

出　　处：《矿产综合利用》2022年第2期131-134,186,共5页Multipurpose Utilization of Mineral Resources

基　　金：四川省重点研发计划(2020YFG0203)。

摘　　要：绵阳某金尾矿含金0.8 g/t、含硫1.24%、含碳3.45%,金矿物主要以单体-连生体以及铁等氧化物包裹金的形式存在,脉石矿物有石英、硅酸盐、有机碳等,属于高碳低金矿。采用浮-重选联合流程,实验获得产率为3.06%,金品位为12.7 g/t,回收率为48.52%的浮选精矿,同时获得产率为2.82%,金品位为4.54 g/t,回收率为16.02%的摇床精矿,尾矿中金含量仅为0.23 g/t,为综合回收该尾矿中的金提供了技术依据。A gold tailings in Mianyang contains 0.8 g/t gold,1.24%sulfur and 3.45%carbon,and the gold mainly existing as particles,intergrowth with gangue minerals and wrapped in iron oxides.The gangue minerals are mainly quartz,silicate and organic carbon,etc,which named as high carbon and low gold deposit.The combined beneficiation flowsheet was developed to recovery gold,and good results were achieved.Flotation concentrate with a yield of 3.06%and grade of 12.7 g/t was achieved,which makes up 48.52%of total gold.Meanwhile,gravity concentrate with a yield of 2.82%and grade of 4.54 g/t was achieved,account for 16.02%of total gold.The final tailing with grade of 0.23 g/t was obtained.Therefore,the developed beneficiation flowsheet provides a technical basis for comprehensive recovery of tailings.

关 键 词：尾矿 浮选 重选 联合工艺 

分 类 号：TD982[矿业工程—选矿]