某高砷难选锌铟矿选矿试验研究  

Study on Mineral Processing of a High Arsenic Indium-zinc Ore

作　　者：张丽敏[1] 叶从新[1] 魏党生[1] 

机构地区：[1]湖南有色金属研究院,长沙410100

出　　处：《有色金属（选矿部分）》2016年第6期31-35,共5页Nonferrous Metals（Mineral Processing Section）

摘　　要：某难选高砷锌铟矿含铟260 g/t、锌1.55%、砷1.15%,铟的存在形式多样、矿物嵌布粒度细微导致该矿铟回收率低、精矿含砷偏高。在矿石性质基础之上采用全硫混合浮选—混合精矿再磨分离的工艺回收原矿中的铟与锌。通过闭路试验获得了锌品位53.09%、铟品位7 112 g/t的锌铟精矿,锌和铟和回收率分别为90.80%与73.91%。精矿中砷含量降低至0.53%,选别指标较好。A complex refractory indium zinc ore containing In 260 g / t,Zn 1. 55%,As 1. 15 %,indium forms,subtle mineral disseminated extent led to the mine low indium recovery and concentrate containing high arsenic. Based on the characteristics of the ore,the flowsheet of total sulfur mixed floating- mix separation process recycling secondary magntic undressed ore of indium and zinc was adopted to separate the indium and other gangue.A concentrate containing 7 112 g / t indium and 1. 55% zinc obtained from closed circuit test and recovery rate of zinc and indium were 90. 80% and 73. 91% respectively. Arsenic content in the concentrate decreased to 0. 53%. The selective separation of zinc,indium and arsenic has been achieved successfully.

关 键 词：锌铟矿 高砷 混合浮选 再磨 硫化 

分 类 号：TD923[矿业工程—选矿]