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›› 2010, Vol. 10 ›› Issue (6): 1158-1162.

• 过程与工艺 • 上一篇    下一篇

机械力对攀枝花钛铁矿结构及反应特性的影响

雷鹰 李雨 彭金辉 张利波 郭胜惠 夏洪应   

  1. 昆明理工大学冶金与能源工程学院,非常规冶金教育部重点实验室 昆明理工大学冶金与能源工程学院,非常规冶金教育部重点实验室 昆明理工大学材料与冶金工程学院 昆明理工大学材料与冶金工程学院 昆明理工大学材料与冶金工程学院 昆明理工大学材料与冶金工程学院
  • 收稿日期:2010-09-21 修回日期:2010-11-26 出版日期:2010-12-20 发布日期:2010-12-20
  • 通讯作者: 彭金辉

Effect of Mechanical Force on Structure and Reaction Characteristics of Panzhihua Ilmenite

LEI Ying LI Yu PENG Jin-hui ZHANG Li-bo GUO Sheng-hui XIA Hong-ying   

  1. Key Laboratory of Unconventional metallurgy, Ministry of Education, Kunming University of Science and Technology Key Laboratory of Unconventional metallurgy, Ministry of Education, Kunming University of Science and Technology Faculty of Materials and Metallurgical Engineering, Kunming University of Science and Technology Faculty of Materials and Metallurgical Engineering, Kunming University of Science and Technology Faculty of Materials and Metallurgical Engineering, Kunming University of Science and Technology Faculty of Materials and Metallurgical Engineering, Kunming University of Science and Technology
  • Received:2010-09-21 Revised:2010-11-26 Online:2010-12-20 Published:2010-12-20
  • Contact: PENG Jin-hui

摘要: 为考察攀枝花钛铁矿的还原特性,对其进行了球磨活化. 结果表明,球磨处理使钛铁矿颗粒粒径变小,晶格细化,应变增大,无序化程度和活性提高. 热重结果分析表明,球磨处理使钛铁矿还原反应开始温度降至600~700℃,并提高了反应速率,在912℃固相反应温度下,磨矿8, 4, 2, 1, 0 h失重分别为10.99%, 7.21%, 3.95%, 3.31%和0.90%.

关键词: 攀枝花钛铁矿, 机械力, 粒度, 晶格应变, 活性, 反应特性

Abstract: Ball milling activation of Panzhihua ilmenite was conducted on its characteristics of reduction reaction. The results show that ball milling can reduce the ilmenite grain size, and increase the stains of lattices and disorder of structure, and activity of ilmenite. The starting reduction temperature of ilmenite and graphite is reduced to 600~700℃ after milling for 4~8 h. At 912℃ of solid state reaction, the weight loss of samples milled for 8, 4, 2, 1 and 0 h is 10.99%, 7.21%, 3.95%, 3.31% and 0.90%, respectively.

Key words: Panzhihua ilmenite, mechanical force, grain size, lattices stain, activity, reaction characteristic