辽宁鞍山胡家庙贫赤铁矿石工艺矿物学特征  

Process mineralogy characteristics of a lean hematite

作　　者：张春浩[1,2] 陈永静 翁存建 陈亮亮 罗仙平[2,4] 

机构地区：[1]赣州金环磁选设备有限公司,江西赣州341000 [2]江西理工大学资源与环境工程学院,江西赣州341000 [3]赣州市环境科学研究所,江西赣州341000 [4]江西省矿冶环境污染控制重点实验室,江西赣州341000

出　　处：《有色金属科学与工程》2015年第5期97-101,共5页Nonferrous Metals Science and Engineering

基　　金：江西省科技支撑计划项目(2010BGA00200)

摘　　要：为了给辽宁鞍山胡家庙贫赤铁矿石的分选工艺改造提供依据,采用X射线衍射、显微镜、Quant Lab-CD图像分析仪等分析检测方法对该矿石进行工艺矿物学研究.结果表明,该铁矿石全铁品位为25.88%,铁在矿石中主要以赤铁矿、假象赤铁矿、磁铁矿形式存在,为选矿回收的主要矿物,且磁铁矿与赤铁矿紧密共生,嵌布粒度粗,部分微细粒级的假象赤铁矿被石英等脉石包裹.矿石中的脉石矿物嵌布粒度较粗,主要为石英、透闪石、阳起石、绿泥石及少量的黏土矿物,对选矿的影响不大,该矿石属易选铁矿石.To provide basis for the dressing process of a lean hematite, this paper studies the process mineralogy adopting X-ray diffraction, microscopy, QuantLab-CD image analyzer analysis and detection methods. The results show that the iron ore with the grade of 25.88 % exists in the forms of hematite, martite and magnetite. Magnetite and hematite are closely associated with coarse disseminated granularity. Some martites of micro-fine particles are coated by quartz or other gangues. The gangue minerals, including quartz, tremolite, actinolite, chlorite and a small amount of clay minerals, are observed in a coarse-grained dissemination, have a slight effect on dressing.

关 键 词：贫赤铁矿 工艺矿物学 嵌布特征 

分 类 号：TD913[矿业工程—选矿]