Study on the effect of addition of zinc-based salt treatment agent on the performance of TiO<sub>2</sub>

Wu Jianchun; Lu Ruifang; Sun Qiang; Shi Ruicheng; Liu Chan

doi:10.7513/j.issn.1004-7638.2022.05.005

Volume 43 Issue 5

Nov. 2022

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Wu Jianchun, Lu Ruifang, Sun Qiang, Shi Ruicheng, Liu Chan. Study on the effect of addition of zinc-based salt treatment agent on the performance of TiO2[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(5): 35-39. doi: 10.7513/j.issn.1004-7638.2022.05.005

Citation:

Wu Jianchun, Lu Ruifang, Sun Qiang, Shi Ruicheng, Liu Chan. Study on the effect of addition of zinc-based salt treatment agent on the performance of TiO₂[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(5): 35-39. doi: 10.7513/j.issn.1004-7638.2022.05.005

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Study on the effect of addition of zinc-based salt treatment agent on the performance of TiO₂

doi: 10.7513/j.issn.1004-7638.2022.05.005

1.
State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization, Pangang Group Research Institute Co., Ltd., Panzhihua 617000, Sichuan, China
2.
School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, China
3.
School of Metallurgy, Northeastern University, Shenyang 110819, Liaoning, China

Received Date: 2022-01-15
Available Online: 2022-11-01
Publish Date: 2022-11-01

Abstract

Abstract

Using metatitanic acid as a raw material, adding different proportions of salt treatment agents to metatitanic acid, and adjusting the calcination temperature to prepare TiO₂ with a rutile content of 98% to 99%. The influence of K₂O, P₂O₅, ZnO addition on the calcination temperature and the properties of TiO₂ pigments were investigated. Then the morphology and particle size distribution of the TiO₂ were analyzed by SEM. The results show that the calcination temperature and the ZnO addition are linearly negatively correlated, while the K₂O and P₂O₅ additions are linearly positively correlated. With the increase of the amount of ZnO, the calcination temperature required for rutile to be qualified is correspondingly reduced. With the increase of the amount of K₂O and P₂O₅, the calcination temperature for rutile to be qualified increases accordingly. With the increase of K₂O, both TCS and SCX showed a trend of first increase and then decrease; with the increase of P₂O₅, TCS showed a downward trend, and SCX showed an overall upward trend; with the increase of ZnO, TCS showed a trend of first increase and then decrease. When rutile is qualified, the average particle size of titanium dioxide shows an increasing trend with the increase of K₂O content in the zinc-based salt treatment formula,, and the coefficient of variation first decreases and then increases. With the increase of P₂O₅ and ZnO content, the average particle size of the titanium dioxide shows a downward trend, and the coefficient of variation first decreases and then increases. The optimal dosage range for K₂O is between 0.34% and 0.38%, P₂O₅ 0.03% to 0.05% and ZnO 0.10% to 0.13%.
- titanium dioxide,
- salt treatment,
- particle size distribution,
- coefficient of variation

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References(10)

References

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