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| Kinetics of hot metal desulfurization by bottom blowing magnesium vapor |
| Jian-ming Su1, Zhi-he Dou1, Ting-an Zhang1, Yan Liu1 |
| 1 Key Laboratory of Ecological Metallurgy of Multi-metal Intergrown Ores of Ministry of Education, Northeastern University, Shenyang 110819, Liaoning, China |
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Abstract To solve the technical problems of hot metal desulfurization by injecting magnesium particulate, a new idea of hot metal desulfurization by bottom-blowing magnesium vapor was put forward. The reaction mechanism of hot metal desulfurization with magnesium vapor injection was analyzed, and the kinetic model of the desulfurization rate during the process of hot metal desulfurization with magnesium vapor injection was established. The dimensionless equation of the gas–liquid mass transfer coefficient under the injection conditions was obtained by the dimensional analysis method. And the theoretical calculation results were in good agreement with the experimental measurements. The results show that the diameter of the bubbles and the viscosity of the melt significantly affect the desulfurization rate of hot metal injected with magnesium vapor. When the temperature is 1573 K and the gas flow rate is 3 L/min, the desulfurization rate can reach 79% and the utilization rate of magnesium can reach 83%.
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Jian-ming Su,Zhi-he Dou,Ting-an Zhang, et al. Kinetics of hot metal desulfurization by bottom blowing magnesium vapor[J]. Journal of Iron and Steel Research International, 2020, 27(4): 392-401.
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| [1] |
Kang-hui Zhang, Yan-ling Zhang, Tuo Wu. Kinetics of hot metal desulfurization using CaO–SiO2–Al2O3–Na2O–TiO2 slag[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2019, 26(10): 1041-1051. |
| [2] |
Ying Ren · Li-feng Zhang · Ying Zhang. Modeling reoxidation behavior of Al–Ti-containing steels by CaO–Al 2O3–MgO–SiO 2 slag[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2018, 25(2): 146-156. |
| [3] |
Yong Yang ? Tian-rui Li ? Tao Jia ? Zhao-dong Wang. Precipitation kinetics of complex precipitate in multicomponent systems[J]. , 2018, 25(10): 1086-1093. |
| [4] |
Tao Xu,Guang-wei Wang,*,Jian-liang Zhang,Teng-fei Song,Run-sheng Xu. Non-isothermal study of gasification process of coal char and biomass char in CO2 condition[J]. Chinese Journal of Iron and Steel, 2017, 24(10): 985-990. |
| [5] |
Jiu-gang SHAO,Jian-liang ZHANG,Guang-wei WANG,Zhe WANG,Hong-wei GUO. Combustion Property and Kinetic Modeling of Pulverized Coal Based on Non-isothermal Thermogravimetric Analysis[J]. Chinese Journal of Iron and Steel, 2014, 21(11): 1002-1008. |
| [6] |
Dan ZHANG,Ya-zheng LIU,Le-yu ZHOU,Qiang HAN,Bo JIANG,Zhong-zhi LI. Dynamic Recrystallization Behavior of GCr15SiMn Bearing Steel during Hot Deformation[J]. Chinese Journal of Iron and Steel, 2014, 21(11): 1042-1048. |
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2020, Vol. 27 
