摘要
以东昆仑某难处理金矿石为研究对象,用先进的矿物分析系统(MLA)与传统工艺矿物学研究方法相结合,查明该矿石的物质组成以及金的矿物种类、金的粒度特征及嵌布状态、主要载金矿物的嵌布粒度、金在矿石中的赋存状态等;在此基础上,采用MLA诊断分析各选冶流程中影响该金矿石选冶的工艺矿物学因素。结果表明,该矿石中具有高砷低硫,易泥化的特点;金矿物种类多,可浮性差别大;金矿物的嵌布粒度微细;载金矿物种类多,嵌布粒度细,属于极难选冶金矿石。针对这些特点,提出适合矿石性质的脱泥-细磨浮选-水冶的优化方案。
A difficult-to-treat gold ore in a migmatite from East Kunlun,China was investigated by combining the international advanced Mineral Liberation Analyser(MLA)with conventional mineralogical techniques.Its mineralogical compositions,the type of gold in the ore,the grain size distribution characteristics of gold carriers,inlay state and the size of gold,the mode of gold occurrence were identified.On this basis,MLA diagnostic analysis was used to analyze the process mineralogical factors affecting the gold ore recovery in each process.The results showed that it had the characteristics of high arsenic,low sulfur and easy sludge.There are multiple types of gold minerals with fine-grained size,and the floatability varies greatly,so it is a refractory ore.Based on these characteristics of the ore,an optimized plan of desliming-fine grinding flotation-water metallurgy suitable for the nature of ore is proposed.
作者
邱显扬
梁冬云
洪秋阳
明平田
肖飞燕
QIU Xian-yang;LIANG Dong-yun;HONG Qiu-yang;MING Ping-tian;XIAO Fei-yan(State Key Laboratory of Rare Metals Separation and Comprehensive Utilization,Institute of Resources Comprehensive Utilization,Guangdong Academy of Sciences,Guangzhou 510650,China;The 6th Institute of Qinghai Geology and Mineral Exploration,Golmud 816000,Qinghai,China)
出处
《贵金属》
CAS
CSCD
北大核心
2020年第2期36-44,共9页
Precious Metals
基金
广东省科学院实施创新驱动发展能力建设专项资金项目(2017GDASCX-0301)。
关键词
工艺矿物学
难处理金矿石
微细粒金
金赋存状态
process mineralogy
a refractory gold ore
fine-grained gold
deportment of gold
