摘要:
采用光学显微镜、电子探针、X射线衍射、化学分析等现代检测手段分析了辽宁某铁矿石的化学成分、矿物组成、矿石结构构造、磁铁矿浸染粒度等特性.结果表明,此铁矿石为鞍山式贫磁铁矿石,TFe品位27.85%,主要存在于磁铁矿中.脉石矿物主要为石英,含量为36.18%,其次有角闪石、石榴石和绿泥石.磁铁矿以中粗粒嵌布为主,粗细不均匀,建议采用阶磨阶选流程.
Abstract:
Some modern testing technology (i.e.optical microscope,electron probe,X-ray diffraction,chemical analysis) were used to investigate the chemical compositions,mineral constituents,mineral constructions and grain sizes of magnetite of an iron ore from Liaoning province.It,s demonstrated that this iron ore belongs to Anshan-type low-grade magnetite ore with a TFe grade 27.85%.The iron element mainly exists in magnetite.Quartz acts as the dominating gangue mineral which is followed by amphibole,garnet and chlorite.Coarse and moderate size grains account for the majority of the magnetite and thickness of uneven size,thus the stage-grinding and stage-beneficiation process is suggested to be adopted.
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