摘要
采用MLA矿物自动检测技术,并结合传统的化学分析、显微分析等手段,对某低品位细粒级破碎带石英脉型金矿石进行了工艺矿物学研究。结果表明,该矿石中主要有用矿物为含银自然金,金载体矿物为毒砂、黄铁矿、石英等。矿石磨至-0.045 mm,可解离的自然金、仍包含于黄铁矿和毒砂中的金、包含于脉石中的金分别占61.24%、34.78%和3.98%,金的理论回收率为96%左右。矿石中金与砷矿物毒砂关系密切,将对氰化提金有一定的影响。
Process mineralogy study was done on a low grade and fine-sized quartz vein type gold ore of fracture zone by adopting MLA mineral automatic detection technology and combined traditional chemical analysis,microscopic analysis and other methods.The results indicate,main valuable minerals in this ore were silver-bearing natural gold,carrier minerals of gold are arsenopyrite,pyrite,quartz,etc.Dissociable natural gold,gold still contained in pyrite and arsenopyrite,gold contained in gangue account for 61.24%、34.78% and 3.98% respectively when ore ground to-0.045 mm,theoretical recovery rate of gold is 96% around.The relationship between gold and arsenic mineral arsenopyrite in ore is close which would has a certain effect to cyanide gold refining.
出处
《现代矿业》
CAS
2011年第12期17-19,共3页
Modern Mining
关键词
自然金
黄铁矿
毒砂
赋存状态
工艺矿物学
Natural gold
Pyrite
Arsenopyrite
Occurrence state
Process mineralogy
