用扫描电镜-图象分析方法研究某区稀土、铌矿石的元素赋存状态  

The Method of Combining Electron Microscope Scanning Analysis with, Image Analysis is Used to Exactly Determine the Contents of Rare-Earth Minerals and Niobium Minerals in Ore of a Certain Iron Ore Deposit

作　　者：任英忱 孙未君 马凤俊[1] 程敏清 林天辉 陈义星 蔡新兴[2] Ren Yingchen;Sun Weijun;Ma Fengzun;Cheng Minqing;Lin Tianhui;Chen Yixing;Cai Xinxing

机构地区：[1]冶金部天津地质调查所 [2]上海钢铁研究所

出　　处：《岩矿测试》1985年第1期45-50,I0007,共7页Rock and Mineral Analysis

摘　　要：某区西部矿区稀土、铌矿物是该区有意义的工业矿物。该类矿物的定量准确程度,将直接影响将来的工艺流程。该区稀土、铌矿物具有含量低、种类多、颗粒细,且某些矿物的光性近似、难于鉴定、矿石又遭受表生氧化等特点,故用传统的在显微镜下数颗粒法困难较大。为提高定量的精度,作者采用x射线微区分析结合图像分析进行稀土、铌矿物的定量方法。The method of combining electron microscope scanning analysis with image analysis is used to determine the contents of rare earth minerals and niobium minerals in ores. Before the determination, first of all, categories and the chemical compositions of these main minerals have to be examined thoroughly. The X-ray plane scanning of electron microscope is carried out to differentiate the elements according to the main elements association, for example Ce-P is monazite, Ce-Ti-Nb is eschynite, Huanghoite is Ce-Ba and the rest is bastnaesite. As to the Niobium minerals Nb-Fe is columbite, Nb-Mn and Nb-Fe-Mn is Maganocolumbite, Nb-Ti-Ce is eschynite, Nb-Ca is fersmite and pyrochlore (the further determination by microscope) Nb-Fe-Ti is ilmenorutile, Nb-Ce is brocenite and Na-Ti-Si is baotite. The X-ray plane scanning is carrying out on a special mode polished section on which all rare-earth minerals and niobium minerals are riched by special technological prossessing. Finally an image analysis instrument is used to prossess all image photos of the scanning and made them to be overlapping exactly and calculate the dimensions and proportions of each mineral respectively by computer.

关 键 词：工业矿物 微区分析 定量方法 分析方法研究 西部矿区 颗粒法 准确程度 

分 类 号：F42[经济管理—产业经济]