Comparison of Butyric Acid Leaching Behaviors of Zinc from Three Basic Oxygen Steelmaking Filter Cakes
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Leaching Experiments
2.3. Characterization of the Filter Cakes and Leaching Residues
3. Results and Discussion
3.1. Characterization of the BOS Filter Cakes
3.2. The Leaching Performance of the Different BOS Filter Cakes
3.3. Characterization of the Leached Residues
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Sample | Storage Time | Pretreatment | Color |
---|---|---|---|
BOS-1 | Several years | Sintered in Stockpile | Red brown |
BOS-2 | Half a year | Heated at 130 °C for 40 days | Shiny black |
BOS-3 | Within one month | Freshly stored in fridge | Dull black |
Sample | BOS-1 | BOS-2 | BOS-3 |
---|---|---|---|
Fe | 56.0 | 56.4 | 60.0 |
Zn | 2.42 | 6.52 | 13.8 |
Ca | 4.04 | 2.86 | 3.02 |
Mg | 1.73 | 1.16 | 0.95 |
Si | 0.72 | 0.65 | 1.01 |
Al | 0.07 | 0.02 | 0.09 |
Mn | 0.83 | 0.67 | 0.61 |
Ti | 0.015 | 0.022 | 0.007 |
K | 0.031 | 0.029 | 0.020 |
Pb | 0.096 | 0.085 | 0.387 |
Cr | 0.053 | 0.022 | 0.035 |
Ni | 0.030 | 0.008 | 0.000 |
V | 0.039 | 0.012 | 0.013 |
LOI 1 | 4.73 | 1.89 | 3.56 |
Sample | Zn Removal (%) | Fe Removal (%) | Zn/Fe Ratio (w/w) | Optimal Parameters | |
---|---|---|---|---|---|
Acid Concentration (M) | L/S Stoichiometric Ratio (%) | ||||
BOS-1 | 8.4 | 1.2 | 0.8 | 0.5 | 90 |
BOS-2 | 51.2 | 0.47 | 12.6 | 1.5 | 70 |
BOS-3 | 84.6 | 20.0 | 0.5 | 1.0 | 90 |
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Wang, J.; Wang, Z.; Zhang, Z.; Zhang, G. Comparison of Butyric Acid Leaching Behaviors of Zinc from Three Basic Oxygen Steelmaking Filter Cakes. Metals 2019, 9, 417. https://doi.org/10.3390/met9040417
Wang J, Wang Z, Zhang Z, Zhang G. Comparison of Butyric Acid Leaching Behaviors of Zinc from Three Basic Oxygen Steelmaking Filter Cakes. Metals. 2019; 9(4):417. https://doi.org/10.3390/met9040417
Chicago/Turabian StyleWang, Jingxiu, Zhe Wang, Zhongzhi Zhang, and Guangqing Zhang. 2019. "Comparison of Butyric Acid Leaching Behaviors of Zinc from Three Basic Oxygen Steelmaking Filter Cakes" Metals 9, no. 4: 417. https://doi.org/10.3390/met9040417