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过程工程学报 ›› 2016, Vol. 16 ›› Issue (2): 233-237.DOI: 10.12034/j.issn.1009-606X.215256CSTR: 32067.14.jproeng.215256

• 反应与分离 • 上一篇    下一篇

菱铁矿磁化焙烧与磁选分离制备铁精矿

春铁军 吴雪健 宁超 龙红明   

  1. 安徽工业大学安徽省冶金工程与资源综合利用重点实验室 安徽工业大学安徽省冶金工程与资源综合利用重点实验室 安徽工业大学安徽省冶金工程与资源综合利用重点实验室 安徽工业大学冶金工程学院
  • 收稿日期:2015-07-07 修回日期:2015-12-17 出版日期:2016-04-20 发布日期:2016-12-22
  • 通讯作者: 春铁军

Preparation of Iron Concentrate from Siderite by Magnetizing Roasting and Magnetic Separation

CHUN Tie-jun WU Xue-jian NING Chao LONG Hong-ming   

  1. Anhui University of Technology, Anhui Provincial Key Lab of Metallurgy Engineering ＆Resources Recyclin Anhui University of Technology, Anhui Provincial Key Lab of Metallurgy Engineering ＆Resources Recyclin Anhui University of Technology, Anhui Provincial Key Lab of Metallurgy Engineering ＆Resources Recyclin School of Metallurgy Engineering, Anhui University of Technology,
  • Received:2015-07-07 Revised:2015-12-17 Online:2016-04-20 Published:2016-12-22
  • Contact: CHUN Tie-jun

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摘要： 对国内某地菱铁矿进行无还原剂全粒级磁化焙烧-磁选研究. 结果表明，菱铁矿在无还原剂条件下于800℃焙烧15 min，所得焙烧矿在磨矿粒度小于0.074 mm占90%、磁场强度0.10 T条件下磁选，得到铁品位63.15%、铁回收率92.52%的铁精矿. 磁选精矿中的锰、镁和部分钙与铁元素以类质同像共存.

关键词: 菱铁矿, 磁化焙烧, 磁选, 类质同像, 铁精矿

Abstract: The magnetizing roasting and magnetic separation without addition of reductant were used to treat all-size siderite iron ore from China for recovery of iron concentrate. The results showed that the final iron concentrate containing 63.15% total Fe content with the iron recovery rate of 92.52% was obtained under the conditions of roasting of siderite ore at 800℃ for 15 min without addition of reductant, and separation of roasted ore by grinding up to the particle sizes of below 0.074 mm with 90% at 0.10 T magnetic field intensity. The elements of Mn, Mg and part of Ca existed in the form of isomorphism with Fe in the iron concentrate.

Key words: siderite, magnetizing roasting, magnetic separation, isomorphism, iron concentrate

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