白云鄂博萤石与稀土浮选分离试验研究  

Experimental Study on Flotation Separation of Fluorite and Rare Earth from Bayan Obo Mine

作　　者：李琅琅 李梅 高凯[1,2] 张栋梁 马林林[1,2] 张雨涵 LI Lang-lang;LI Mei;GAO Kai;ZHANG Dong-liang;MA Lin-lin;ZHANG Yu-han(Institute of Mining,Inner Mongolia University of Science and Technology,Baotou 014010,Inner Mongolia,China;Key Laboratory of Green Extraction and Efficient Utilization of Light Rare-Earth Resources of Ministry of Education,Baotou 014010,Inner Mongolia,China)

机构地区：[1]内蒙古科技大学矿业研究院,内蒙古包头014010 [2]轻稀土资源绿色提取与高效利用教育部重点实验室,内蒙古包头014010

出　　处：《矿冶工程》2020年第3期43-46,共4页Mining and Metallurgical Engineering

基　　金：国家自然科学基金重点项目(51634005);内蒙古自治区自然科学基金重大项目(2014ZD04)。

摘　　要：对白云鄂博萤石粗精矿进行了优先浮选萤石、尾矿再浮选稀土的试验研究。在最佳浮选药剂制度下,采用一粗三精两扫闭路流程回收萤石,得到了CaF2品位95.11%、回收率84.09%的萤石精矿;尾矿采用一粗一精浮选稀土,得到了REO品位63.06%、回收率67.92%的稀土精矿。研究成果为开发利用白云鄂博萤石粗精矿提供了一种新的思路。Experimental study on the treatment of Bayan Obo fluorite bulk concentrate was conducted by adopting a preferential flotation process to recover fluorite,followed by a flotation of the tailings to recover rare earth.With an optimal flotation reagent system,the fluorite was collected using a closed-circuit flowsheet consisting of one roughing,two scavenging and three cleaning stages.A fluorite concentrate graded 95.11%CaF2 was obtained at a recovery of 84.09%.Then,the tailings was subjected to a flotation process with one roughing and one cleaning,resulting in a rare earth concentrate with REO grade of 63.06%and recovery of 67.92%.The experimental result can provide a new solution for the utilization of Bayan Obo fluorite bulk concentrate.

关 键 词：萤石粗精矿 浮选 稀土 萤石 白云鄂博矿 

分 类 号：TD97[矿业工程—选矿]