用电化学法用熔渣脱硫钢液

IF 0.9 4区材料科学 Q3 METALLURGY & METALLURGICAL ENGINEERING

Journal of Mining and Metallurgy Section B-Metallurgy Pub Date : 2022-01-01 DOI:10.2298/jmmb211014012w

X-Q Wu, J.-F. Xu, Py Gu, J.-Y. Zhang

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引用次数: 1

摘要

冶金过程中的脱硫本质上是电化学反应。提出了用CaO-MgO-Al2O3熔渣包覆钢水的电化学脱硫方法。讨论了0 ~ 8V外部直流电压的影响。结果表明，外加电压可有效去除钢液中的硫。通过对外加电压作用下脱硫机理的分析，建立了脱硫动力学公式，模型计算结果与实验值吻合较好。电迁移条件下熔渣中硫的传递系数约为2.09?这个m ? - ?它们。通过提高施加电压、降低大气氧分压、加强反应体系的搅拌强度、优化炉渣的组成和性能，可以促进钢水用熔渣脱硫。

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Desulfurization of molten steel with molten slag using the electrochemical method

The desulfurization in metallurgical process is electrochemical reaction in nature. Desulfurization using the electrochemical method was proposed with the CaO-MgO-Al2O3 molten slag covering molten steel. Effect of an applied external DC voltage, varied from 0 to 8V, was discussed. The results indicated that sulfur in molten steel can be removed effectively with applied external voltage. According to the mechanism analyses of the desulfurization under the applied external voltage, kinetics formulae were developed, and the model calculated results accord well with the experimental values. The transfer coefficient of sulfur in molten slag under electromigration conditions is approximately 2.09?10-5 m?s-1?V-1. The desulfurization of molten steel with molten slag can be promoted by increasing the applied voltage, reducing the partial pressure of atmospheric oxygen, strengthening the stirring intensity of the reaction system, and optimizing the composition and properties of the slag.

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来源期刊

Journal of Mining and Metallurgy Section B-Metallurgy 工程技术-冶金工程

CiteScore

2.00

自引率

40.00%

发文量

审稿时长

2 months

期刊介绍： University of Belgrade, Technical Faculty in Bor, has been publishing the journal called Journal of Mining and Metallurgy since 1965 and in 1997 it was divided in two independent journals dealing with mining and metallurgy separately. Since 2009 Journal of Mining and Metallurgy, Section B: Metallurgy has been accepted in Science Citation Index Expanded. Journal of Mining and Metallurgy, Section B: Metallurgy presents an international medium for the publication of contributions on original research which reflect the new progresses in theory and practice of metallurgy. The Journal covers the latest research in all aspects of metallurgy including hydrometallurgy, pyrometallurgy, electrometallurgy, transport phenomena, process control, solidification, mechanical working, solid state reactions, materials processing, surface treatment and relationships among processing, structure, and properties of materials.