Reaction Mechanism of Hot Metal Desulfurization in the KR Process and Application of Red Mud as an Additive to Desulfurization Flux

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Standard

Reaction Mechanism of Hot Metal Desulfurization in the KR Process and Application of Red Mud as an Additive to Desulfurization Flux. / Jung, Soon-Jong; Bang, Kang-Ho; Jeong, Baek-Kyoo et al.
Conference Proceedings of the International Process Metallurgy Conference (IPMC 2023), Bandung, Indonesia. 2023.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Harvard

Jung, S-J, Bang, K-H, Jeong, B-K, Bernhard, MC & Kang, Y-B 2023, Reaction Mechanism of Hot Metal Desulfurization in the KR Process and Application of Red Mud as an Additive to Desulfurization Flux. in Conference Proceedings of the International Process Metallurgy Conference (IPMC 2023), Bandung, Indonesia.

APA

Jung, S.-J., Bang, K.-H., Jeong, B.-K., Bernhard, M. C., & Kang, Y.-B. (2023). Reaction Mechanism of Hot Metal Desulfurization in the KR Process and Application of Red Mud as an Additive to Desulfurization Flux. In Conference Proceedings of the International Process Metallurgy Conference (IPMC 2023), Bandung, Indonesia

Vancouver

Jung SJ, Bang KH, Jeong BK, Bernhard MC, Kang YB. Reaction Mechanism of Hot Metal Desulfurization in the KR Process and Application of Red Mud as an Additive to Desulfurization Flux. In Conference Proceedings of the International Process Metallurgy Conference (IPMC 2023), Bandung, Indonesia. 2023

Author

Jung, Soon-Jong ; Bang, Kang-Ho ; Jeong, Baek-Kyoo et al. / Reaction Mechanism of Hot Metal Desulfurization in the KR Process and Application of Red Mud as an Additive to Desulfurization Flux. Conference Proceedings of the International Process Metallurgy Conference (IPMC 2023), Bandung, Indonesia. 2023.

Bibtex - Download

@inproceedings{bc11c4549124438e8d255ccaaf2892e1,
title = "Reaction Mechanism of Hot Metal Desulfurization in the KR Process and Application of Red Mud as an Additive to Desulfurization Flux",
abstract = "The successful removal of sulfur (S) from hot metal is exemplified by the Kanbara Reactor (KR) process. However, a clearer understanding of its operating mechanism is needed. This study investigates the role of lime as the primary desulfurization agent, considering its chemical and mechanical aspects. Lime was found to not only chemically remove S but also facilitate the fragmentation of the desulfurization flux, which is crucial for enhancing the interfacial reaction area during vigorous mechanical stirring in the KR process. Fragmentation depends on the liquid-solid volume fraction in the flux. Traditionally, fluorspar has been used as an additive to aid in lime melting, but due to its environmental toxicity, alternative additives have been proposed. In this study, red mud, an industrial waste from alumina production, and spent MgO-C refractory, were used as additives to lime, creating a novel desulfurization flux for hot metal in steelmaking. Laboratory-scale tests were conducted with mechanical stirring. A {"}DeS Index{"} was introduced to quantitatively assess desulfurization efficiency, considering extent, rate, and cost. The industrial waste-containing flux showed comparable efficiency to commercially used fluxes, indicating its potential as an effective alternative. This study contributes to a better understanding of the desulfurization process and offers an environmentally friendly option for desulfurization in steelmaking.",
author = "Soon-Jong Jung and Kang-Ho Bang and Baek-Kyoo Jeong and Bernhard, {Michael Christian} and Youn-Bae Kang",
year = "2023",
month = sep,
day = "13",
language = "English",
booktitle = "Conference Proceedings of the International Process Metallurgy Conference (IPMC 2023), Bandung, Indonesia",

}

RIS (suitable for import to EndNote) - Download

TY - GEN

T1 - Reaction Mechanism of Hot Metal Desulfurization in the KR Process and Application of Red Mud as an Additive to Desulfurization Flux

AU - Jung, Soon-Jong

AU - Bang, Kang-Ho

AU - Jeong, Baek-Kyoo

AU - Bernhard, Michael Christian

AU - Kang, Youn-Bae

PY - 2023/9/13

Y1 - 2023/9/13

N2 - The successful removal of sulfur (S) from hot metal is exemplified by the Kanbara Reactor (KR) process. However, a clearer understanding of its operating mechanism is needed. This study investigates the role of lime as the primary desulfurization agent, considering its chemical and mechanical aspects. Lime was found to not only chemically remove S but also facilitate the fragmentation of the desulfurization flux, which is crucial for enhancing the interfacial reaction area during vigorous mechanical stirring in the KR process. Fragmentation depends on the liquid-solid volume fraction in the flux. Traditionally, fluorspar has been used as an additive to aid in lime melting, but due to its environmental toxicity, alternative additives have been proposed. In this study, red mud, an industrial waste from alumina production, and spent MgO-C refractory, were used as additives to lime, creating a novel desulfurization flux for hot metal in steelmaking. Laboratory-scale tests were conducted with mechanical stirring. A "DeS Index" was introduced to quantitatively assess desulfurization efficiency, considering extent, rate, and cost. The industrial waste-containing flux showed comparable efficiency to commercially used fluxes, indicating its potential as an effective alternative. This study contributes to a better understanding of the desulfurization process and offers an environmentally friendly option for desulfurization in steelmaking.

AB - The successful removal of sulfur (S) from hot metal is exemplified by the Kanbara Reactor (KR) process. However, a clearer understanding of its operating mechanism is needed. This study investigates the role of lime as the primary desulfurization agent, considering its chemical and mechanical aspects. Lime was found to not only chemically remove S but also facilitate the fragmentation of the desulfurization flux, which is crucial for enhancing the interfacial reaction area during vigorous mechanical stirring in the KR process. Fragmentation depends on the liquid-solid volume fraction in the flux. Traditionally, fluorspar has been used as an additive to aid in lime melting, but due to its environmental toxicity, alternative additives have been proposed. In this study, red mud, an industrial waste from alumina production, and spent MgO-C refractory, were used as additives to lime, creating a novel desulfurization flux for hot metal in steelmaking. Laboratory-scale tests were conducted with mechanical stirring. A "DeS Index" was introduced to quantitatively assess desulfurization efficiency, considering extent, rate, and cost. The industrial waste-containing flux showed comparable efficiency to commercially used fluxes, indicating its potential as an effective alternative. This study contributes to a better understanding of the desulfurization process and offers an environmentally friendly option for desulfurization in steelmaking.

M3 - Conference contribution

BT - Conference Proceedings of the International Process Metallurgy Conference (IPMC 2023), Bandung, Indonesia

ER -