The Oxidation Dynamics of Ilmenite

Kang Liwu; Zeng Jun; Huang Yonggang

doi:10.7513/j.issn.1004-7638.2017.06.004

Volume 38 Issue 6

Dec. 2017

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Kang Liwu, Zeng Jun, Huang Yonggang. The Oxidation Dynamics of Ilmenite[J]. IRON STEEL VANADIUM TITANIUM, 2017, 38(6): 23-26. doi: 10.7513/j.issn.1004-7638.2017.06.004

Citation:

Kang Liwu, Zeng Jun, Huang Yonggang. The Oxidation Dynamics of Ilmenite[J]. IRON STEEL VANADIUM TITANIUM, 2017, 38(6): 23-26. doi: 10.7513/j.issn.1004-7638.2017.06.004

Kang Liwu, Zeng Jun, Huang Yonggang. The Oxidation Dynamics of Ilmenite[J]. IRON STEEL VANADIUM TITANIUM, 2017, 38(6): 23-26. doi: 10.7513/j.issn.1004-7638.2017.06.004

Citation:

Kang Liwu, Zeng Jun, Huang Yonggang. The Oxidation Dynamics of Ilmenite[J]. IRON STEEL VANADIUM TITANIUM, 2017, 38(6): 23-26. doi: 10.7513/j.issn.1004-7638.2017.06.004

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The Oxidation Dynamics of Ilmenite

doi: 10.7513/j.issn.1004-7638.2017.06.004

1. Hubei Engineering Institute, Huangshi 435000, Hubei, China;
2. Fangda Group Jiujiang Pingxiang Iron and Steel Co., Ltd., Jiujiang 332500, Jiangxi, China

Received Date: 2017-09-26

Abstract

Abstract

In this paper,the oxidation mechanism of ilmenite was discussed by respectively studying the oxidation kinetics of ilmenite in medium and high temperature ranges.The apparent activation energies of the reactions are 227.50 kJ/mol and 99.25 kJ/mol in the temperature range of 600~750 ℃ and 750~900 ℃,respectively.The ilmenite oxidation reaction is transformed from lattice diffusion to grain boundary diffusion at 750 ℃.Therefore,the oxidation reaction of ilmenite is controlled by the diffusion of oxygen ions.
- ilmenite,
- oxidation roasting,
- oxidation dynamics,
- ion diffusion