Carbothermic Reduction of Ilmenite Concentrate with Coke Assisted by High Energy Ball Milling

  • Bing Song
  • Kai Zhang
  • Fei Xi
  • Xuewei Lv
Conference paper

Abstract

The electric arc furnace process is a common method to produce high TiO2 slag from ilmenite. The pre-reduction process was proposed in recent years in order to reduce electricity consumption. In order to enhance the pre-reduction degree, high energy ball milling was proposed to improve the specific surface area of the ilmenite prior to reduction. In this study, the carbothermic reduction behavior of milled ilmenite concentrate was investigated. It was found that the ball milling method can result in a higher reduction rate and improved metallization of iron. The metallization of iron increased with increasing the time of ball milling. The metallization of iron with milling reached 89.49% when the time of ball milling was 70 min., while the FeO content decreased with 70 min. of milling from 11.84% to 4.76%.

Key words

Ilmenite concentrate High energy ball milling Carbothermic reduction 

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Copyright information

© TMS (The Minerals, Metals & Materials Society) 2014

Authors and Affiliations

  • Bing Song
    • 1
  • Kai Zhang
    • 1
  • Fei Xi
    • 1
  • Xuewei Lv
    • 1
  1. 1.College of Materials Science and EngineeringChongqing UniversityChina

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