Multivariate correlation analysis of qualified liquid and vanadium pentoxide composition during vanadium precipitation

Wu Jinshu; Rao Yuzhong; Wu Zhenxiu; Jiang Lin

doi:10.7513/j.issn.1004-7638.2023.06.006

Volume 44 Issue 6

Dec. 2023

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Wu Jinshu, Rao Yuzhong, Wu Zhenxiu, Jiang Lin. Multivariate correlation analysis of qualified liquid and vanadium pentoxide composition during vanadium precipitation[J]. IRON STEEL VANADIUM TITANIUM, 2023, 44(6): 38-45. doi: 10.7513/j.issn.1004-7638.2023.06.006

Citation:

Wu Jinshu, Rao Yuzhong, Wu Zhenxiu, Jiang Lin. Multivariate correlation analysis of qualified liquid and vanadium pentoxide composition during vanadium precipitation[J]. IRON STEEL VANADIUM TITANIUM, 2023, 44(6): 38-45. doi: 10.7513/j.issn.1004-7638.2023.06.006

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Multivariate correlation analysis of qualified liquid and vanadium pentoxide composition during vanadium precipitation

doi: 10.7513/j.issn.1004-7638.2023.06.006

State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization, Pangang Group Research Institute Co., Ltd., Panzhihua 617000, Sichuan, China

Received Date: 2023-04-03
Available Online: 2024-01-11
Publish Date: 2023-12-30

Abstract

Abstract

The effects of phosphorus, iron, manganese, silicon and vanadium in the qualified solution during vanadium precipitation on the composition of vanadium pentoxide were investigated through multivariate correlation analysis using Pearson coefficient statistics, probability density analysis and probability density cumulative distribution analysis methods. The results show that the Pearson coefficients of P, Mn content in qualified solution and P content in vanadium pentoxide are 0.6847 and 0.6663, respectively, with the highest degree of linear dependence. The Pearson coefficients of Mn, Fe in qualified liquid and Mn, Si in vanadium pentoxide are 0.3612 and 0.3564, respectively, indicating a certain degree of linear dependence. The Pearson coefficients of P, V in qualified liquid and Si, P in vanadium pentoxide are −0.3291 and −0.2258, respectively, representing a certain degree of negative linear correlation. The absolute value of Pearson coefficients for the content of other elements in the qualified solution and vanadium pentoxide are all less than 0.16, indicating a weak correlation. The contents of P, Mn, Fe, Si and V in vanadium pentoxide and qualified solution do not follow a normal distribution, reflecting the instability of the unified sample process, that is, the unstable production process. Therefore, it is necessary to reduce the abnormal fluctuation of qualified solution composition and avoid the factors that have relatively great impacts on the vanadium precipitation, which contributes to improve the stability of vanadium oxide composition. This work can provide some theoretical and technical support for the production of qualified vanadium oxide.
- vanadium pentoxide,
- vanadium precipitation,
- qualified liquid,
- element content,
- multivariate correlation effect,
- Pearson coefficient

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References(11)

References

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