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Effects of Pre-oxidation on the Kinetics of Iron Leaching from Ilmenite in Hydrochloric Acid Solution

  • Junyi Xiang
  • Qingyun Huang
  • Wei Lv
  • Xuewei LvEmail author
  • Chenguang Bai
Conference paper
Part of the The Minerals, Metals & Materials Series book series (MMMS)

Abstract

The kinetics of iron leaching from ilmenite in hydrochloric acid solutions were investigated. The effects of pre-oxidation roasting, leaching temperature, and holding time on iron extraction rate were determined. The results obtained show that the extraction of iron is significantly enhanced by pre-oxidation roasting and increasing leaching temperature from 75 to 108 °C. The results of the kinetic analysis of the leaching data indicate that the reaction is controlled by diffusion through the product layer. The apparent activation energy for the extraction of iron has been calculated to be 62.5 and 55.1 kJ/mol for untreated and oxidized ilmenite, respectively.

Keywords

Ilmenite Leaching Hydrochloric acid Kinetics Pre-oxidation 

Notes

Acknowledgements

This work was supported by the Natural Science Foundation of China [grant numbers 51404047 and 51234010] and the Basic and Frontier Research Program of Chongqing [grant numbers cstc2014jcyjA50011]

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Copyright information

© The Minerals, Metals & Materials Society 2018

Authors and Affiliations

  • Junyi Xiang
    • 1
  • Qingyun Huang
    • 2
  • Wei Lv
    • 1
  • Xuewei Lv
    • 1
    Email author
  • Chenguang Bai
    • 1
  1. 1.School of Materials Science and EngineeringChongqing UniversityChongqingChina
  2. 2.School of Metallurgical and Materials EngineeringChongqing University of Science and TechnologyChongqingChina

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