白云鄂博主矿霓石型稀土铁矿石中稀土元素在独立矿物中的富集状况研究  

Enrichment of Rare Earth Elements in Aegirine Type Rare Earth Iron Ore in Bayan Obo Mine

作　　者：杨占峰 朱智慧[1] 王振江 李强[2] 黄小宾[1] 王绍华 Yang Zhanfeng;Zhu Zhihui;Wang Zhenjiang;Li Qiang;Hang Xiaobin;Wang Shaohua(Institute of Mining Engineering,Inner Mongolia University of Science and Technology,Baotou 014010,China;Baotou Rare Earth Research Institute,Rare Earth Resources Research and the Comprehensive Utilization State Key Laboratory of Bayan Obo,Baotou 014030,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]包头稀土研究院,白云鄂博稀土资源研究与综合利用国家重点实验室,内蒙古包头014030

出　　处：《中国稀土学报》2019年第6期769-776,I0004,共9页Journal of the Chinese Society of Rare Earths

基　　金：国家重点基础研究发展计划973项目(2012CBA01200)资助

摘　　要：对白云鄂博主矿霓石型稀土铁矿石进行多元素分析,化验其元素组成及含量,并结合场发射电镜、能谱仪和自动矿物分析系统对其稀土富集状况进行了研究。结果表明:主矿霓石型稀土铁矿石稀土品位高达9.1%,轻稀土含量占稀土总量的97.91%,中重稀土含量占稀土总量的2.09%;稀土氧化物含量在氟碳钙铈矿中占元素总量的68.52%,在氟碳铈矿中占67.94%,在独居石中占61.66%,在黄河矿中占37.11%,在易解石中占28.33%;该类型矿石中稀土氧化物48.01%赋存于氟碳铈矿中,21.21%赋存于独居石中,7.34%赋存于黄河矿中,5.87%赋存于氟碳钙铈矿中,0.93%赋存于易解石中,这五种矿物稀土氧化物含量之和共占矿石中稀土总量的83.36%。Multi element analysis of aegirine type rare earth iron ore in main mine of Bayan Obo,elemental composition,and distribution of rare earth elements were studied by field emission electron microscopy,energy spectrometer and automatic mineral analysis system.The results showed that the rare earth grade of this type of ore is as high as 9.1%,light rare earth accounts for 97.91%,medium and heavy rare earth accounts for 2.09%of total rare earth.REO content in parisite accounts for 68.52%of the total element,bastnasite accounts for 67.94%,monazite accounts for 61.66%.The huanghoite accounts for 37.11%.The aeschynite accounts for 28.33%;REO content in bastnasite accounts for 48.01%of the total element,21.21%occurs in monazite,7.34%occurs in huanghoite,5.87%occurs in parisite,0.93%occurs in aeschynite,the sum of REO contained in these five minerals accounts for 83.36%of the total amount of rare earth in the ore.

关 键 词：白云鄂博矿 霓石型稀土铁矿石 稀土氧化物 富集状况 

分 类 号：P575[天文地球—矿物学]