Abstract
Recycling of the slag is a crucial challenge for the steel-producing companies because of a huge amount of the slag produced in the steel companies. This paper investigated an ability of a basic oxygen furnace slag using in desulfurization of hot metal in pre-treatment process, as a solution in recycling of the slag. Iron and the slag were obtained from a steel company. The iron was completely melt in a high frequency induction furnace to get hot metal, then a flux containing the slag and CaO was embedded into the metal. After 10 min of reaction time, the metal and slag samples were taken out for chemical compositions analysis. The results shown that the S content of the metal decreased from 0.054 to 0.027 mass%. The oxidation of Silicon (Si) strongly influenced the desulfurization of the metal; increase in oxidation of Si caused removing of Sulfur (S) content of the metal to decrease significantly.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Similar content being viewed by others
References
Visser, H.-J., Boom, R.: Advanced process modelling of hot metal desulphurisation by injection of Mg and CaO. ISIJ Int. 12, 1771–1777 (2006)
Taguchi, K., Ono-Nakazato, H., Nakai, D., Usui, T., Marukawa, K.: Deoxidation and desulfurization equilibria of liquid iron by calcium. ISIJ Int. 11, 1705–1709 (2003)
Schrama, F., Beunder, E., Berg, B., Yang, Y., Boom, R.: Sulphur removal in ironmaking and oxygen steelmaking. Ironmak. Steelmak. Prod. Appl. 5, 333–343 (2017)
Yang, J., Okumura, K., Kuwabara, M., Sano, M.: Desulfurization of molten iron with magnesium vapor produced in-situ by aluminothermic reduction of magnesium oxide. ISIJ Int. 9, 965–973 (2001)
Hernandez, A., Romero, A., Chavez, F., Angeles, M., Moral, R.D.: Dephosphorization and desulfurization pretreatment of molten iron with CaO-SiO2-CaF2-FeO-Na2O slags. ISIJ Int. 2, 126–131 (1998)
Hur, N.-S., Jung, S.-M., Ban, B.-C.: Dephosphorization and desulphurization pretreatment of liquid iron using CaF2-free fluxes containing BOF slags. Steel Res. Int. 75, 778–782 (2004)
Biswas, A.K.: Principles of Blast Furnace Ironmaking. Cootha Publishing House, Brisbane (1981)
Stephen, F.M.: Improvement of the desulfurization process by slag composition control in the ladle furnace. Master Thesis, Luleå University of Technology (2009)
Dwarapudi, S., Ghosh, T.K., Shankar, A., Tathavadkar, V., Bhattacharjee, D., Venugopal, R.: Effect of pellet basicity and MgO content on the quality and microstructure of hematite pellets. Int. J. Miner. Process. 99, 43–53 (2011)
Acknowledgment
The authors are grateful to the financial support by the Asahi glass foundation under grant number AGF.2020-06.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2021 The Author(s), under exclusive license to Springer Nature Switzerland AG
About this paper
Cite this paper
Nguyen, C.S., Tran, T.D., Bui, A.H. (2021). Desulphurization of Hot Metal in Pre-treatment Process with a Flux Containing Basic Oxygen Furnace Slag and CaO. In: Long, B.T., Kim, YH., Ishizaki, K., Toan, N.D., Parinov, I.A., Vu, N.P. (eds) Proceedings of the 2nd Annual International Conference on Material, Machines and Methods for Sustainable Development (MMMS2020). MMMS 2020. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-030-69610-8_74
Download citation
DOI: https://doi.org/10.1007/978-3-030-69610-8_74
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-030-69609-2
Online ISBN: 978-3-030-69610-8
eBook Packages: EngineeringEngineering (R0)