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金属矿山 ›› 2012, Vol. 41 ›› Issue (05): 67-70.

• 矿物工程 • 上一篇    下一篇

贵州赫章高铝鲕状赤铁矿铝铁分离研究

杨大兵1,2,沈进杰1,2,杨茂麟3,敖万忠3   

  1. 1.武汉科技大学资源与环境工程学院;2.冶金矿产资源高效利用与造块湖北省重点实验室;3.首钢水城钢铁有限责任公司
  • 出版日期:2012-05-22 发布日期:2012-05-29

Reasearch on Separation of Aluminum and Iron of High-aluminum  Oolitic hematite from Guizhou Hezhang

Yang Dabing1,2,Shen Jinjie1,2,Yang Maolin3,Ao Wanzhong3   

  1. 1.College of Resources and Environmental Engineering,Wuhan University of Science and Technology;2.Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources;3.Shougang Shuicheng Iron & Steel
  • Online:2012-05-22 Published:2012-05-29

摘要: 贵州赫章高铝鲕状赤铁矿主要铁矿物为赤铁矿和褐铁矿,含铝矿物三水铝石以细粒集合体和隐晶质被赤铁矿包裹,铁铝赋存关系复杂。研究表明,添加YS-1,采用直接还原—干式磁选工艺能有效地实现高铝鲕状赤铁矿中铝和铁的分离,当原矿全铁含量为42.56%,Al2O3含量为12.30%时,可获得全铁品位为93.16%,Al2O3含量为2.02%的还原铁产品,铁回收率为88.45%。  

关键词: 高铝鲕状赤铁矿, 铝铁分离, 直接还原, 干式磁选

Abstract: Iron minerals are hematite and limonite mainly of High-aluminum oolitic hematite of Guizhou Hezhang,gibbsite of aluminum-bearing minerals enwrapped by hematite as fine granules and cryptocrystalline,the existential relation between iron and aluminium in the ore is complex.Studies show that adding YS-1,most of aluminum can be removed by direct reduction-dry magnetic separation process.Reduced iron product bearing 93.16%TFe,2.02%Al2O3 can be obtained by processing a raw ore with 42.56%TFe,12.30%Al2O3,and the iron recovery reaches 88.45%.

Key words: High-aluminum oolitic hematite, Aluminum-iron separation, Direct reduction, Dry magnetic separation