Comparative study of dispersion performance of the zinc and aluminum salt treated rutile titanium dioxides

Liu Chan; Yin Hongyao; Yang Fang; Lu Ruifang

doi:10.7513/j.issn.1004-7638.2024.03.006

Volume 45 Issue 3

Jul. 2024

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Liu Chan, Yin Hongyao, Yang Fang, Lu Ruifang. Comparative study of dispersion performance of the zinc and aluminum salt treated rutile titanium dioxides[J]. IRON STEEL VANADIUM TITANIUM, 2024, 45(3): 39-45. doi: 10.7513/j.issn.1004-7638.2024.03.006

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Liu Chan, Yin Hongyao, Yang Fang, Lu Ruifang. Comparative study of dispersion performance of the zinc and aluminum salt treated rutile titanium dioxides[J]. IRON STEEL VANADIUM TITANIUM, 2024, 45(3): 39-45. doi: 10.7513/j.issn.1004-7638.2024.03.006

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Comparative study of dispersion performance of the zinc and aluminum salt treated rutile titanium dioxides

doi: 10.7513/j.issn.1004-7638.2024.03.006

1.
State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization, Pangang Group Research Institute Co., Ltd., Panzhihua 617000, Sichuan, China
2.
Ploymer Research Institute, Sichuan University, State Key Laboratory of Ploymer Materials Engineering, Chengdu 610065, Sichuan, China

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Received Date: 2023-11-20
Publish Date: 2024-07-02

Abstract

Abstract

In this paper, the effects of TiO₂ concentration, pH of the dispersion system and surface adsorbed chemical ingredients on the zeta potential of the zinc and aluminum salt treated rutile titanium dioxides produced by the manufacturer were systematically studied. The differences of the dispersion stability of the zinc and aluminum salt treated rutile titanium dioxides were compared and analyzed. The results show that with the increase of dilution concentration, the dispersion of aluminum series becomes more and more stable, while that of zinc series becomes unstable. The pH of the dispersion solution increased from 4.0 to 10.0, and the zeta potential of the aluminum series primary product was more significant than that of the zinc series primary product, that is, the aluminum primary product was more easily dispersed and stable. After surface desulphurization and dehydroxylation of primary products, the variation of zeta potential of aluminum and zinc series primary products with pH did not change, which proved that the surface adsorbed chemical ingredients were not the fundamental influencing factors of differences of dispersion of the two series primary products. It was further proved that Zn²⁺ or Al³⁺ doping was the root cause of the difference of dispersion stability of the two series primary products through the single salt treatment and calcination test in the laboratory. Moreover, the calcination temperature had a significant effect on the surface charge of the primary products, and the effect on the aluminum series primary product was more significant.
- titanium dioxide primer,
- zinc series,
- aluminium series,
- dispersion property,
- zeta potential

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References(19)

References

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