矿物解离分析仪在泥堡金尾矿金赋存状态分析中的应用  

Application of Mineral Liberation Analyzer in the Analysis of Occurrences of Gold in Nibao Gold Tailings

作　　者：杨建文[1] 肖骏[1] 陈代雄[1] 董艳红[1] YANG Jian-wen;XIAO Jun;CHEN Dai-xiong;DONG Yan-hong(Hunan Research Institute for Non-ferrous Metals,Hunan Provincial Key Laboratory for Complex Copper Lead Zinc Associated Metal Resources Comprehensive Utilization,Changsha 410100,China)

机构地区：[1]湖南有色金属研究院,复杂铜铅锌共伴生金属资源综合利用湖南省重点实验室,长沙410100

出　　处：《科学技术与工程》2020年第7期2619-2624,共6页Science Technology and Engineering

基　　金：湖南省科技重大专项计划(2018GK1030)。

摘　　要：利用矿物解离分析仪(MLA)系统等综合手段对贵州泥堡金尾矿进行工艺矿物学分析,考察了该尾矿的矿物组成、含金矿物的嵌布粒度及嵌布特征。结果表明:泥堡金尾矿中的金多以类质同象晶格态赋存于黄铁矿、氧化后的黄铁矿、赤铁矿之中,这三种金属矿物嵌布粒度微细,且均存在着复杂的连生及包裹关系。推荐采用非氰化浸出工艺处理该金尾矿。The process mineralogy of Nibao gold tailings in Guizhou Province was analyzed by the mineral liberation analyzer(MLA)system.The mineral composition,size and distribution characteristics of gold-bearing minerals were investigated.Results show that most of the gold in Nibao gold tailings exists in pyrite,oxidized pyrite and hematite in isomorphic lattice state.These three metal minerals are fine-grained and have complex intergrowth and encapsulation relationship.Non-cyanide leaching process is recommended to treat the gold tailings.

关 键 词：金尾矿 工艺矿物学 矿物自动分析仪 微细粒 

分 类 号：TD923[矿业工程—选矿]