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金属矿山 ›› 2009, Vol. 39 ›› Issue (06): 98-101.

• 矿物工程 • 上一篇    下一篇

新疆某低品位铁矿石工艺矿物学研究

吕宪俊,邱俊,陈平,胡术刚   

  1. 山东科技大学
  • 出版日期:2009-06-08 发布日期:2011-07-21

Investigation on the Process Mineralogy of a Low Grade Iron Ore from Xinjiang

Lu Xianjun,Qiu Jun,Chen Ping,Hu Shugang   

  1. Shandong University of Science and Technology
  • Online:2009-06-08 Published:2011-07-21

摘要: 为了查明新疆某铁矿石的工艺矿物学性质,为选矿工艺研究提供矿物学依据,采用化学分析、X射线衍射、光学显微镜等手段,对矿石的物质组成、铁在矿石中的赋存形式及磁铁矿的嵌布特性等进行了系统研究。结果表明:该矿石属于以磁铁矿为主的低品位磁铁矿-赤铁矿混合矿石,矿石平均铁品位仅17.33%,磁性铁占有率71%左右;磁铁矿嵌布粒度细小,并与脉石矿物共生紧密,不易充分解离,将给分选带来困难。  

关键词: 低品位铁矿石, 工艺矿物学, 磁铁矿嵌布粒度, 铁赋存形式

Abstract: To identify the process mineralogical properties of an iron ore from Xinjiang so as to provide a mineralogical basis for its beneficiation research, a systematic investigation was made of its mineral composition, iron occurrence mode and magnetite dissemination by chemical analysis, X ray diffraction and optical microscopy. The results show that this ore is a low grade magnetite-hematite ore with mainly magnetite, and has an average iron grade of only 17.33%, including 71% magnetic iron. Due to their fine dissemination and close association with gangue minerals, the magnetite particles are hard to be fully liberated, bringing difficulty in their separation.

Key words: Low grade iron ore, Process mineralogy, Magnetite dissemination size, Iron occurrence mode