东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2012, Vol. 33 ›› Issue (5): 694-697.DOI: -

• 论著 • 上一篇    下一篇

铝土矿浮选尾矿制取铝硅铁合金时团块性能研究

罗洪杰;刘宜汉;姚广春;孙挺;   

  1. 东北大学材料与冶金学院;
  • 收稿日期:2013-06-19 修回日期:2013-06-19 发布日期:2013-04-04
  • 通讯作者: -
  • 作者简介:-
  • 基金资助:
    国家高技术研究发展计划项目(2007AA06Z116,2008AA03Z512)

Performance research of briquettes used for preparing Al-Si-Fe alloy with flotation tailings of bauxite as raw materials

Luo, Hong-Jie (1); Liu, Yi-Han (1); Yao, Guang-Chun (1); Sun, Ting (1)   

  1. (1) School of Materials and Metallurgy, Northeastern University, Shenyang 110819, China
  • Received:2013-06-19 Revised:2013-06-19 Published:2013-04-04
  • Contact: Luo, H.-J.
  • About author:-
  • Supported by:
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摘要： 以选矿拜耳法生产氧化铝过程中形成的铝土矿浮选尾矿为原料、以煤和石油焦为还原剂,以纸浆干粉为黏结剂,通过混合和压制的方式制取可用于还原熔炼的团块状物料.重点检测了团块的抗压强度和比电阻.研究结果表明:由不同种类的煤制备的团块在抗压强度和比电阻上均存在较大差异;随着纸浆干粉含量的增加团块的抗压强度增大,但比电阻迅速减小;还原剂配比发生变化对团块抗压强度和比电阻均没有显著的影响.

关键词: 抗压强度, 比电阻, 团块, 浮选尾矿, 铝硅铁合金

Abstract: Using flotation tailings which were formed during Bayer beneficiation producing alumina as raw materials, using coal and petroleum coke as reductant, and the dry powder of pulp as adhesive, the briquettes material for reduction smelting was obtained by mixing and the suppression. Compressive strength and specific resistance were detected. The results showed that the compressive strength and specific resistance of briquettes are different with changing of types of coal. The compressive strength increases with increasing the content of dry powder of pulp in briquette, but the specific resistance decreases quickly. The changes of reductant proportion, which means the proportion between coal and petroleum coke and all of them is used as reductant at the same time, have no significant influence on the compressive strength and specific resistance.

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