Reduction disintegration behavior of vanadium titanomagnetite pellets in H2–CO–CO2–N2 mixtures

Hu, Qingqing; Xin, Ran; Gao, Xudong; Wang, Yue; You, Yong‐Ouk; You, Zhixiong; Lv, Xuewei

doi:10.1016/j.powtec.2022.118073

Powder Technology

2023

DOI: 10.1016/j.powtec.2022.118073

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Reduction disintegration behavior of vanadium titanomagnetite pellets in H2–CO–CO2–N2 mixtures

Qingqing Hu

Ran Xin

Xudong Gao

et al.

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Cited by 8 publications

References 31 publications

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Preparation of Oxidized Pellets of Vanadium Titanium Magnetite and Direct Reduction Behavior in Hydrogen‐Based Shaft Furnace

Tang,

Chu,

Feng

et al. 2024

steel research int.

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Herein, the optimized process parameters for the preparation of vanadium‐titanium magnetite (VTM) pellets are determined, and an efficient and green utilization technology for VTM based on the integration of oxidation roasting‐hydrogen‐based shaft furnace direct reduction is established. The results indicate that the preferable VTM oxidized and pre‐reduced pellets can be prepared by preheating at 925 °C for 18 min and roasting at 1200 °C for 25 min, followed by the reduction temperature of 1050 °C at the reduction atmosphere of 4% CO2 and H2/CO = 8. The corresponding compressive strength of the preheated and roasted pellets is 516 N per pellet and 2028 N per pellet, respectively. In addition, the LTD+6.3 and LTDUP of roasted pellets are 80.86% and 93.90%, and the corresponding reducibility index, reduction swelling index, and the reduction sticking index are 0.0428, 2.32%, and 2.50%, respectively. All of which meet the production requirements of hydrogen‐based shaft furnace.

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Preparation of Oxidized Pellets of Vanadium Titanium Magnetite and Direct Reduction Behavior in Hydrogen‐Based Shaft Furnace

Tang,

Chu,

Feng

et al. 2024

steel research int.

View full text Add to dashboard Cite

show abstract

Enhancing Reduction Separation and Efficient Recovery of Iron, Vanadium, and Titanium for Ultra-High-Titanium Magnetite

Cheng,

Han,

Song

et al. 2023

Metall Mater Trans B

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Mass Action Concentration Calculation and Experimental Study on Molten Vortex Direct Reduction of Vanadium–Titanium Magnetite

Han,

Dou,

Yang

et al. 2024

Metall Mater Trans B

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Reduction disintegration behavior of vanadium titanomagnetite pellets in H2–CO–CO2–N2 mixtures

Cited by 8 publications

References 31 publications

Preparation of Oxidized Pellets of Vanadium Titanium Magnetite and Direct Reduction Behavior in Hydrogen‐Based Shaft Furnace

Preparation of Oxidized Pellets of Vanadium Titanium Magnetite and Direct Reduction Behavior in Hydrogen‐Based Shaft Furnace

Enhancing Reduction Separation and Efficient Recovery of Iron, Vanadium, and Titanium for Ultra-High-Titanium Magnetite

Mass Action Concentration Calculation and Experimental Study on Molten Vortex Direct Reduction of Vanadium–Titanium Magnetite

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