某微细粒金矿石浮选试验研究  

Study on Floatation Experiment of a Micro-fine Particle Gold Ore

作　　者：于雪[1] 陈新林[1] 

机构地区：[1]沈阳有色金属研究院,辽宁沈阳110141

出　　处：《有色矿冶》2015年第6期18-21,17,共5页Non-Ferrous Mining and Metallurgy

摘　　要：某金矿石为少硫化物金矿石,矿石中金矿物粒度细小,微细粒金矿物占89.15%。金矿物与脉石和黄铁矿关系十分密切,其中脉石矿物粒间金占62.19%,黄铁矿与脉石粒间金占17.82%,有13.58%的金矿物包裹于脉石矿物中。浮选试验磨矿细度为-0.075 mm占75%,捕收剂采用SK和丁基黄药优化组合,一次粗选,二次扫选,二次精选,在原矿金品位为1.88g/t时,试验获得金精矿金品位45.05g/t,金回收率为82.35%。There are a small amount of sulfide minerals in a gold ore, the dissemination particle of gold min- erals in the ore is relatively fine, micro--grained gold minera content is accounted for 89.15%. Gold min- erals is closely relationship with gangue and pyrite, gangue minerals of intergranular gold accounted for 62.19%, pyrite and gangue intergranular gold accounted for 17.82%, 13.58% of the gold content package in the gangue minerals. The grinding fineness reaches --0. 075 mm 75% of flotation test, SK and butyl xan- thate optimization are collector, a roughing floatation, twice scavenging floatation, twice cleaning floata- tion, gold grade of 1.88 g/t in the run of mine, the results of tests show that the gold concentrate with 45.05 g/t gold grade and 82.35% gold recovery is achieved.

关 键 词：微细粒金矿石 粒间金 浮选 SK和丁基黄药 

分 类 号：TD923[矿业工程—选矿]