某高砷含碳低品位难选金矿浮选试验研究  

Flotation of Lean Refractory Gold Ore with High Content of Arsenic and Carbon

作　　者：姚兰星 王毓华[1] 何建璋 马永义 卢东方[1] YAO Lan-xing;WANG Yu-hua;HE Jian-zhang;MA Yong-yi;LU Dong-fang(School of Mineral Processing and Bioengineering,Central South University,Changsha 410083,Hunan,China;Western Region Gold Co Ltd,Urumqi 830001,Xinj iang,China)

机构地区：[1]中南大学资源加工与生物工程学院,湖南长沙410083 [2]西部黄金股份有限公司,新疆乌鲁木齐830001

出　　处：《矿冶工程》2018年第2期38-42,共5页Mining and Metallurgical Engineering

基　　金：中南大学研究生创新项目(2017zzts574)

摘　　要：对某高砷含碳低品位难选金矿进行了浮选试验研究。采用碳酸钠和水玻璃为调整剂,实现了矿泥分散和脉石矿物的选择性抑制;采用Y89-0为捕收剂,实现了对载金矿物(黄铁矿和砷黄铁矿)的选择性捕收。在磨矿细度-0.074 mm粒级占80%条件下,采用一粗二精三扫闭路浮选流程,在原矿金品位2.36 g/t时,可获得精矿金品位36.08 g/t、回收率86.77%的良好指标。Flotation testing of a high-arsenic lean refractory carbonaceous gold ore was performed with sodium carbonate and water glass as regulators,showing slime well-dispersed and gangue minerals selectively depressed. The selective collection of gold-bearing minerals（ pyrite and arsenopyrite） was actualized by using Y89-0 as the collector. After the feed ore with the gold content of 2. 36 g/t was milled to a grinding fineness of-0. 074 mm 80%,a closed-circuit flowsheet consisting of one stage of roughing,two stages of cleaning and three stages of scavenging was adopted in the experimental study,producing a gold concentrate grading 36.08 g/t Au at 86.77% recovery.

关 键 词：金矿 黄铁矿 砷黄铁矿 黄金 浮选 

分 类 号：TD923[矿业工程—选矿]