Preparation of VN by reduction nitriding V2O3 with CH4

Xia Sanyuan; Jiang Tao; Chen Bojian; Wen Jing; Yang Guangdong; Liu Mengxia

doi:10.7513/j.issn.1004-7638.2024.05.003

Volume 45 Issue 5

Oct. 2024

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Xia Sanyuan, Jiang Tao, Chen Bojian, Wen Jing, Yang Guangdong, Liu Mengxia. Preparation of VN by reduction nitriding V2O3 with CH4[J]. IRON STEEL VANADIUM TITANIUM, 2024, 45(5): 17-25. doi: 10.7513/j.issn.1004-7638.2024.05.003

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Xia Sanyuan, Jiang Tao, Chen Bojian, Wen Jing, Yang Guangdong, Liu Mengxia. Preparation of VN by reduction nitriding V₂O₃ with CH₄[J]. IRON STEEL VANADIUM TITANIUM, 2024, 45(5): 17-25. doi: 10.7513/j.issn.1004-7638.2024.05.003

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Preparation of VN by reduction nitriding V₂O₃ with CH₄

doi: 10.7513/j.issn.1004-7638.2024.05.003

School of Metallurgy, Northeastern University, Shenyang 110819, Liaoning, China

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Received Date: 2024-04-02
Available Online: 2024-10-30
Publish Date: 2024-10-30

Abstract

Abstract

In this paper, the process conditions and reaction process of using CH₄ instead of traditional carbon thermal reduction to prepare VN is explored by combining thermodynamic calculation and experimental process exploration. The results showed that the VN products with nitrogen and carbon contents of 14.2% and 3.35% were successfully synthesized under the conditions of CH₄ flow rate of 0.1 L/min, heating at 1150 ℃ for 2 h and continuous nitriding for 2 h, which met the national standard of VN16 (GB/T 20567-2020) for vanadium nitride product. The phase transition process during the reaction is V₂O₃→V₈C₇→VN, and the high activated carbon and hydrogen produced by methane decomposition at high temperature are beneficial to the carbonization reaction and effectively improve the reaction rate.
- VN,
- V₂O₃,
- CH₄,
- reduction nitridation,
- phase transitions

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References(17)

References

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