Study on effect of Al-Zn composite salt treatment on the quality of rutile TiO<sub>2</sub>

Lu Ruifang; Sun Qiang; Yang Fang; Wang Xiaohui; Liu Chan; Cheng Xiaozhe

doi:10.7513/j.issn.1004-7638.2022.03.003

Volume 43 Issue 3

Jun. 2022

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Lu Ruifang, Sun Qiang, Yang Fang, Wang Xiaohui, Liu Chan, Cheng Xiaozhe. Study on effect of Al-Zn composite salt treatment on the quality of rutile TiO2[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(3): 14-19. doi: 10.7513/j.issn.1004-7638.2022.03.003

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Lu Ruifang, Sun Qiang, Yang Fang, Wang Xiaohui, Liu Chan, Cheng Xiaozhe. Study on effect of Al-Zn composite salt treatment on the quality of rutile TiO₂[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(3): 14-19. doi: 10.7513/j.issn.1004-7638.2022.03.003

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Study on effect of Al-Zn composite salt treatment on the quality of rutile TiO₂

doi: 10.7513/j.issn.1004-7638.2022.03.003

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
Publish Date: 2022-06-30

Abstract

Abstract

Using hydrolyzed metatitanic acid as raw materials, the effect of Al-Zn composite salt treatment on the quality of rutile TiO₂ was studied. Rutile TiO₂ samples were prepared by adjusting the calcination temperature. The effects of the addition of Al₂O₃ and ZnO on the calcination temperature required for rutile qualification were investigated. The pigment properties, particle size distribution and morphology of the rutile TiO₂ were then analyzed. The results show that for the Al-Zn composite salt treatment system, the low addition of Al₂O₃ promotes the rutile transformation, and the high addition of Al₂O₃ inhibits the rutile transformation; ZnO promotes rutile transformation. With the increase of Al₂O₃ dosage, TCS and SCX first increase and then decrease, the mean diameter first decreases and then increases, the coefficient of variation increases, the length-diameter ratio increases, and the particles gradually grow from ellipsoid to strip. When the dosage of Al₂O₃ is 0.15%, the TCS and SCX of the sample are the best and the average particle size is the smallest. With the increase of ZnO dosage, the TCS and SCX, average particle size, dispersion coefficient and aspect ratio have no obvious variation rules. When the addition of Al₂O₃ is 0.15%, with the increase of ZnO addition, the mean diameter decreases, the length-diameter ratio decreases, and the particles gradually grow from long strip to ellipsoid.
- titanium dioxide,
- metatitanic acid,
- salt treatment,
- mean diameter,
- coefficient of variation,
- length-diameter ratio

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References(15)

References

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