欢迎访问过程工程学报, 今天是

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

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

中图分类号: