Study on viscosity characteristics of molten vanadium slag during iron-extracting reduction process

Wang Ning; Chen Min; Zhang Lingxi

doi:10.7513/j.issn.1004-7638.2022.02.006

Volume 43 Issue 2

May 2022

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Wang Ning, Chen Min, Zhang Lingxi. Study on viscosity characteristics of molten vanadium slag during iron-extracting reduction process[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(2): 35-40. doi: 10.7513/j.issn.1004-7638.2022.02.006

Citation:

Wang Ning, Chen Min, Zhang Lingxi. Study on viscosity characteristics of molten vanadium slag during iron-extracting reduction process[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(2): 35-40. doi: 10.7513/j.issn.1004-7638.2022.02.006

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Study on viscosity characteristics of molten vanadium slag during iron-extracting reduction process

doi: 10.7513/j.issn.1004-7638.2022.02.006

Wang Ning^{1, 2
,},
Chen Min^{2
,
,},
Zhang Lingxi²

1.
State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization,Panzhihua 617000，Sichuan，China
2.
School of Metallurgy, Northeastern University ,Shenyang 110819，Liaoning，China

Received Date: 2021-07-13
Available Online: 2022-05-11
Publish Date: 2022-04-28

Abstract

Abstract

In this paper, the viscosity variation of the vanadium slag system in the iron-extracting reduction process from molten vanadium slag in cutting waste was studied, and the effect mechanism of structural units in the melt on macro-viscosity was revealed from the perspective of microstructure by studying the melt structure of vanadium slag system. Results showed that the content of FeO in the slag decreased, and the content of SiO₂ increased during the reduction reaction. Meanwhile, the free oxygen ions in the slag decreased, and the chain and ring silicate structure could not be destroyed, further causing the decrease of simple silicate structural units such as Q⁰ and Q¹, and the increase of complex silicate structural units such as Q² and Q³. Finally, the melt polymerization degree increased, and the slag viscosity increased gradually.
- molten vanadium slag,
- photovoltaic cutting waste,
- reduction,
- viscosity characteristics,
- melt structure

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References(10)

References

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