摘要
针对辽宁海城某堆存低品位菱镁矿矿石性质复杂难选的特点,进行系统工艺矿物学研究,为其后续选别和药剂研发提供指导。采用X射线衍射(XRD)仪、X射线荧光光谱(XRF)仪、扫描电镜和矿物自动分析系统(AMICS)等对矿石的物质组成、粒度分布、解离度、连生和嵌布关系进行系统研究。结果表明,矿石中主要有用成分为Mg O,质量分数为44.08%,脉石矿物有角闪石、石英、白云石和镁铝榴石等;菱镁矿单体解离度90%~100%分布率为91.05%,以细粒嵌布为主,主要与角闪石连生,三相包裹比为41.89%,在矿石中单体截面多为条状、带状或不规则状,部分呈微细粒被石英包裹。研究结果对该类低品位菱镁矿石的选别及深加工具有指导意义。
Aiming at a stockpile of low-grade magnesite in Haicheng,Liaoning Province,which is characterized by complex and difficult ore properties,a systematic process mineralogical study was carried out in order to provide guidance for its subsequent beneficiation and the development of pharmaceuticals.X-ray diffractometer(XRD),X-ray fluorescence spectrometer(XRF),scanning electron microscope and automatic mineral analysis system(AMICS)and other analytical means were used to carry out systematic research on the material composition of the ore,the particle size distribution,dissociation degree,contiguous and embedded relationship.The results show that the main useful component in the ore is MgO with a content of 44.08%,the vein minerals are hornblende,quartz,dolomite and magnesia-aluminum garnet.Magnesite monomer dissociation level in 90%-100%accounts for 91.05%,mainly fine-grained embedded,mainly with hornblende contiguous,three-phase parcel ratio is 41.89%,in the ore monomer cross-sections are the bars,bands,or irregular,some of them are microfine grains wrapped in quartz.The results of this study are of guiding significance for the sorting and deep processing of this type of low-grade magnesite.
作者
董丽鑫
代淑娟
李鹏程
刘子源
杨方圆
栾靖淳
Dong Lixin;Dai Shujuan;Li Pengcheng;Liu Ziyuan;Yang Fangyuan;Luan Jingchun(School of Mining Engineering,University of Science and Technology Liaoning,Anshan,Liaoning 114051)
出处
《非金属矿》
2024年第4期78-80,102,共4页
Non-Metallic Mines
基金
国家自然科学基金(51874168)。
关键词
菱镁矿
工艺矿物学
矿物自动分析系统
嵌布特征
magnesite
process mineralogy
automatic mineral identification and characterization system
dissemination characteristic
