氟碳铈矿型稀土矿石工艺矿物学研究  

Process Mineralogy of a Rare Earth Ore Dominated by Bastnaesite

作　　者：洪秋阳[1] 李波[1] 梁冬云[1] 

机构地区：[1]广州有色金属研究院,广东广州510650

出　　处：《稀土》2015年第4期148-151,共4页Chinese Rare Earths

摘　　要：采用MLA技术结合显微镜,对某氟碳铈矿型稀土矿进行详细的工艺矿物学研究,定量测定其矿物组成、粒度、解离度、稀土在矿石中的赋存状态等工艺矿物学参数。结果表明:矿石中的稀土矿物种类较多,可分为稀土碳酸盐、磷酸盐和稀土硅酸盐三类矿物,但是以氟碳铈矿为主;尾矿中的重晶石和萤石都可综合回收利用;若回收碳酸稀土和磷酸稀土,预测本矿石稀土的理论回收率为89%左右。The rare earth ore dominated by bastnaesite usually has the characters including coarse grains size,high con- tent of valuable elements and many valuable associated minerals. In this paper, a detail process mineralogy study on a rare earth ore dominated by bastnaesite is carried out by MLA and optical microscope. The process mineralogy parameters including min- eralogy composition, grain size, liberation degree and occurrence of rare earth are quantitatively determined. The results indicate that the rare earth minerals contained in this ore can be divided into three types including rare earth carbonate, rare earth phos- phate and rare earth silicate but are dominated by bastnaesite; both barite and fluorite contained in the railings can be recovered comprehensively; the theoretical recovery of rare earth concentrate is about 89% if the rare earth carbonate and rare earth phosphate are recovered.

关 键 词：稀土 氟碳铈矿 工艺矿物学 

分 类 号：TD955[矿业工程—选矿]