Eski爧ehir-Beylikova稀土矿的工艺矿物学研究

Process Mineralogy of Rare Earth Ore in Eskisehir-Beylikova

土耳其Eski爧ehir-Beylikova矿为萤石-重晶石-氟碳铈矿的复合矿床,为了查清矿石矿物与脉石矿物的嵌布关系,充分合理地利用资源,实验采用化学分析、FE-SEM、EDS、XRD及AMICS等分析方法,进行了样品的工艺矿物学研究。结果表明,矿石呈微粒、细粒浸染状构造、多孔状构造,矿物嵌布粒度极细,嵌布关系复杂。稀土矿物呈微细针状、放射状、织状集合体充填于其他矿物的间隙或包裹在其他矿物中,其他矿石矿物的单体解离度也很低。该矿石难以获得较高品位的稀土、萤石、重晶石及锰精矿,属极难选矿石。

Eskisehir-Beylikova deposit is a composite deposit of CaF_2-BaSO_4-REFCO_3 in Turkey. In order to find out the dissemination relationship between ore mineral and gangue minerals,and make full rational use of the resources,the process mineralogy research was made by means of chemical analysis,FE-SEM,EDS,XRD and AMICS. The results show that the ore has micro disseminated structure and vesicular structure,with extremely fine mineral dissemination size. Rare earth mineral occurs as micro needles or radical mineral aggregates in the gap of other minerals or as inclusions in other minerals. The liberation degrees of other ore minerals are very low. The ore belongs to a refractory ore which is difficult to obtain higher grade rare earth,fluorite,barite and psilomelane concentrate.