非洲某锂辉石矿分选工艺  

Separation Technology of a Spodumene Ore in Africa

作　　者：余利红 高玉德 张国范[1] 孟庆波 吴迪 李双棵 Yu Lihong;Gao Yude;Zhang Guofan;Meng Qingbo;Wu Di;Li Shuangke(School of Resource Processing and Bioengineering,Central South University,Changsha,Hunan,China;Institute of Resource Utilization,Guangdong Academy of Sciences,State Key Laboratory of Separation and Comprehensive Utilization of Rare Metals,Guangzhou,Guangdong,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410000 [2]广东省科学院资源利用与稀土开发研究所,稀有金属分离与综合利用国家重点实验室,广东广州510000

出　　处：《矿产综合利用》2023年第5期27-31,共5页Multipurpose Utilization of Mineral Resources

摘　　要：这是一篇矿物加工工程领域的论文。非洲某伟晶岩锂矿中有用矿物以锂辉石为主,原矿Li_(2)O含量为0.87%,属低品位锂矿,开发利用相对困难。本研究通过详细的浮选实验,采用“一粗二扫三精”的浮选工艺,获得了产率为10.15%的锂辉石精矿,含Li_(2)O 6.03%,锂回收率70.14%。磁选除杂实验结果表明,锂浮选精矿经0.2 T磁选可获得化工级-1锂辉石精矿产品,经0.6 T磁选可获得陶瓷级锂辉石精矿产品,实现了该低品位锂矿的高质化利用。This is an essay in the field of mineral processing engineering.The useful mineral of a pegmatite lithium deposit in Africa is spodumene,and the raw ore contains 0.87%Li_(2)O.It belongs to low-grade lithium ore,which is relatively difficult to develop and use.In this study,a spodumene concentrate with a yield of 10.15%,containing 6.03%Li_(2)O and lithium recovery of 70.14%was obtained through detailed flotation tests and the flotation process of"one roughing,two scavengings and three cleanings".The magnetic separation test results show that chemical grade-1 spodumene concentrate can be obtained by 0.2 T magnetic separation of lithium flotation concentrate,and ceramic grade spodumene concentrate can be obtained by 0.6 T magnetic separation of lithium flotation concentrate,which realizes the high-quality utilization of this low-grade lithium ore.

关 键 词：矿物加工工程 锂辉石 低品位 浮选 陶瓷级 

分 类 号：TD955[矿业工程—选矿]