FEM analysis and experimental study of microwave assisted separation  of vanadium-titanomagnetite

Zhou Yufeng; Qian Gongming; Cheng Xiangyu

doi:10.7513/j.issn.1004-7638.2021.05.020

Volume 42 Issue 5

Oct. 2021

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Zhou Yufeng, Qian Gongming, Cheng Xiangyu. FEM analysis and experimental study of microwave assisted separation of vanadium-titanomagnetite[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(5): 126-131. doi: 10.7513/j.issn.1004-7638.2021.05.020

Citation:

Zhou Yufeng, Qian Gongming, Cheng Xiangyu. FEM analysis and experimental study of microwave assisted separation of vanadium-titanomagnetite[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(5): 126-131. doi: 10.7513/j.issn.1004-7638.2021.05.020

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FEM analysis and experimental study of microwave assisted separation of vanadium-titanomagnetite

doi: 10.7513/j.issn.1004-7638.2021.05.020

1.
College of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan 430081, Hubei, China
2.
Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, Wuhan 430081, Hubei, China

Received Date: 2021-07-19
Publish Date: 2021-10-30

Abstract

Abstract

Taking vanadium-titanomagnetite (VTM) from Panxi zone as the investigation object, the feasibility of microwave selective separation of VTM was analyzed theoretically through finite element simulation, and the effects of microwave power and treatment time on its dissociation were investigated. The influence of microwave treatment on the separation characteristics of VTM were studied by using scanning electron microscope (SEM), X-ray diffraction (XRD), BET specific surface area detection method (BET), particle size analysis and other methods. The results showed that the ore can be rapidly heated up to 600 ℃ under the condition of microwave power of 3 kW and treatment time of 40 s. After microwave treatment, many obvious cracks appeared in the ore, and the specific surface area and pore volume of VTM increased by 46.04% and 83.45%, respectively. The fractions of product with size of −0.160 mm and −0.074 mm in the grinding products increased by 21.47% and 16.68%, respectively, while the Bond grinding work index decreased by 8.13%. The magnetite separation test shows that the iron grade and recovery of concentrate can be increased by 2.34% and 1.13% respectively after microwave treatment. It is demonstrated that microwave treatment is positive to the selective separation of VTM and improve the separation effect.
- vanadium-titanomagnetite,
- microwave treatment,
- finite element simulation,
- selective separation,
- productive rate,
- recovery rate

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References(11)

References

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