滇西铅锌浮选尾矿中难选萤石的选矿试验研究  

Experimental study on beneficiation of refractory fluorite from lead-zinc flotation tailings in west Yunnan

作　　者：宋强[1] 谢贤[1] 童雄[1] 吕昊子[1] 彭伟[1] 

机构地区：[1]昆明理工大学国土资源工程学院,省部共建复杂有色金属资源清洁利用国家重点实验室,云南省金属矿尾矿资源二次利用工程研究中心,云南昆明650093

出　　处：《化工矿物与加工》2017年第4期16-19,56,共5页Industrial Minerals & Processing

基　　金：云南省应用基础研究计划项目(2014FA027);云南省选冶新技术重点试验室开放课题基金(xy2015kf01)

摘　　要：某铅锌浮选尾矿中伴生萤石质量分数为18.84%,主要脉石矿物为石英、方解石等,为回收该尾矿中的萤石,进行了详细的选矿试验研究。常温条件下,以碳酸钠为调整剂,水玻璃、硫酸铝和腐植酸钠为脉石矿物的抑制剂,油酸和731作为组合捕收剂,采用2次粗选8次精选的闭路浮选流程,最终得到CaF_2品位为96.18%,回收率为69.63%的优质萤石精矿。A lead-zinc flotation tailings in western Yunnan province contains associated fluorite being 18. 84% in content with its main gangue minerals consisting of quartz and calcite. A detailed flotation test study was carried out to recover fluorite from the tailings. At normal temperature, test was conducted with sodium carbonate as regulator, water glass, aluminum sul- fate and sodium humate as depressors, oleic acid and 731 as combined collectors in a closed circuit flotation flowsheet of 2-roug- hing and 8-cleaning to produce a fluorite concentrate product in high quality with CaF2 96.18% grade and 69.63% recovery.

关 键 词：铅锌尾矿 萤石 抑制剂 捕收剂 综合利用 

分 类 号：TD985[矿业工程—选矿]