Non-isothermal reduction kinetics of carbon-coated vanadium-titanium magnetite powder

Gao Yice; Hao Suju; Jiang Wufeng; Zhang Yuzhu; Bo He

doi:10.7513/j.issn.1004-7638.2023.01.019

Volume 44 Issue 1

Feb. 2023

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Gao Yice, Hao Suju, Jiang Wufeng, Zhang Yuzhu, Bo He. Non-isothermal reduction kinetics of carbon-coated vanadium-titanium magnetite powder[J]. IRON STEEL VANADIUM TITANIUM, 2023, 44(1): 111-118. doi: 10.7513/j.issn.1004-7638.2023.01.019

Citation:

Gao Yice, Hao Suju, Jiang Wufeng, Zhang Yuzhu, Bo He. Non-isothermal reduction kinetics of carbon-coated vanadium-titanium magnetite powder[J]. IRON STEEL VANADIUM TITANIUM, 2023, 44(1): 111-118. doi: 10.7513/j.issn.1004-7638.2023.01.019

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Non-isothermal reduction kinetics of carbon-coated vanadium-titanium magnetite powder

doi: 10.7513/j.issn.1004-7638.2023.01.019

Gao Yice^1
,,
Hao Suju^{1
,
,},
Jiang Wufeng¹,
Zhang Yuzhu¹,
Bo He²

1.
School of Metallurgy and Energy, North China University of Science and Technology, Ministry of Education Key Laboratory of Modern Metallurgy Technology, Tangshan 063009, Hebei, China
2.
Department of Materials Engineering, Tangshan Vocational College of Science and Technology, Tangshan 063001, Hebei, China

Received Date: 2021-08-04
Publish Date: 2023-02-28

Abstract

Abstract

To accurately explore the dynamics of carbon reduction reaction of vanadium-titanium magnetite powder, the test was conducted by hydrothermal method without adding any modifier. Carbon-coated vanadium-titanium magnetite powder was prepared with glucose as carbon source. The heating curves of weightlessness of carbon-coated vanadium-titanium magnetite powder obtained under different heating rate of 5, 7.5, 10, 15, 12.5, 1 5 K/min were measured by high temperature comprehensive thermal analyzer . Combined with the FWO formula and CR formula, the experimental data were calculated,as well as the kinetic parameters of carbon-coated vanadium-titanium magnetite powder. The results show that the weight loss rate of carbon-coated vanadium-titanium magnetite powder in a certain temperature range is proportional to the amount of carbon coating and the heating rate. The activation energy in this reaction is about 73.533 kJ/mol with a reaction mechanism of tertiary chemical reaction model.
- vanadium-titanium magnetite powder,
- non-isothermal reduction,
- carbon coating,
- dynamics

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References(20)

References

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