Reduction kinetics of iron oxide in metatitanic acid by organic reductant

Mao Xuehua; Wang Jun

doi:10.7513/j.issn.1004-7638.2023.01.004

Volume 44 Issue 1

Feb. 2023

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Mao Xuehua, Wang Jun. Reduction kinetics of iron oxide in metatitanic acid by organic reductant[J]. IRON STEEL VANADIUM TITANIUM, 2023, 44(1): 15-19. doi: 10.7513/j.issn.1004-7638.2023.01.004

Citation:

Mao Xuehua, Wang Jun. Reduction kinetics of iron oxide in metatitanic acid by organic reductant[J]. IRON STEEL VANADIUM TITANIUM, 2023, 44(1): 15-19. doi: 10.7513/j.issn.1004-7638.2023.01.004

Mao Xuehua, Wang Jun. Reduction kinetics of iron oxide in metatitanic acid by organic reductant[J]. IRON STEEL VANADIUM TITANIUM, 2023, 44(1): 15-19. doi: 10.7513/j.issn.1004-7638.2023.01.004

Citation:

Mao Xuehua, Wang Jun. Reduction kinetics of iron oxide in metatitanic acid by organic reductant[J]. IRON STEEL VANADIUM TITANIUM, 2023, 44(1): 15-19. doi: 10.7513/j.issn.1004-7638.2023.01.004

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Reduction kinetics of iron oxide in metatitanic acid by organic reductant

doi: 10.7513/j.issn.1004-7638.2023.01.004

Mao Xuehua,
Wang Jun^,

College of Biological and Chemical Engineering, Panzhihua University, Panzhihua 617000, Sichuan, China

Received Date: 2022-09-27
Publish Date: 2023-02-28

Abstract

Abstract

The reduction kinetics of iron oxide in metatitanic acid by organic reductant was investigated in the paper to explore the process mechanism and guide the actual production. The results show that the step reaction order is one for the organic reductant and two for iron oxide. Under the condition of excessive reductant, the reduction rate of iron oxide is affected by reaction temperature, stirring strength and acidity of metatitanic acid. The reduction rate increases with increasing temperature, and the apparent activation energy in the reaction is 51.73 kJ/mol. The reduction rate first increases and then changes slowly with increasing stirring strength, which shows that the reduction rate is not controlled by diffusion step under higher stirring strength. The reduction rate first increases and then decreases with increasing acidity of metatitanic acid, which was relevant to the dissolution of iron oxide and the resolution of organic reductant. Therefore, it can be inferred that the reduction rate of iron oxide in metatinic acid by organic reductant is controlled by reduction reaction step under the conditions of excessive organic reductant dosage and certain stirring intensity.
- metatitanic acid,
- iron oxide,
- reduction,
- organic reductant,
- kinetics

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References(11)

References

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