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Behavior of metal droplets in slags during desulphurization of hot metal
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering.
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering.
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Applied Process Metallurgy.
2015 (English)In: Proceedings of the 6th International Congress on the Science and Technology of Steelmaking, ICS 2015, Chinese Society for Metals , 2015, 80-83 p.Conference paper, Published paper (Refereed)
Abstract [en]

An intensive desulphurization of hot metal can result in significant additional losses of iron in the slag. These iron losses during desulphurization of hot metal can reach a value of 1.5%-2.5% of the total amount of processed hot metal. The majority of the iron losses are present in the slag in form of different iron droplets. Therefore, the knowledge of the formation and behavior of these droplets in slags can help to significantly decrease the iron losses during desulphurization of hot metal. The characteristics of different iron droplets such as the morphology, number, size, composition and solidification structure were investigated in industrial slag samples taken from a ladle after desulphurization of hot metal. It was found that different morphologies of iron droplets in slag depend on the mechanism for the dispersion of the hot metal droplets into the slag, the characteristics of slag (amount, viscosity, melting temperature, etc.) as well as some technological parameters (mode and intensity of injection of reagents for desulphurization, stirring rate of hot metal in the ladle, etc.). The main mechanisms for involving of different metal droplets into the slag and their behavior during desulphurization process are discussed based on the obtained characteristics of the metal droplets.

Place, publisher, year, edition, pages
Chinese Society for Metals , 2015. 80-83 p.
Keyword [en]
Desulphurization, Hot metal, Iron losses, Metal droplets, Slag, Desulfurization, Drops, Iron, Ladles, Slags, Steelmaking, Desulphurization process, Iron loss, Solidification structure, Stirring rates, Technological parameters, Metals
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-194671Scopus ID: 2-s2.0-84983187921OAI: oai:DiVA.org:kth-194671DiVA: diva2:1050619
Conference
6th International Congress on the Science and Technology of Steelmaking, ICS 2015, 12 May 2015 through 14 May 2015
Note

QC 20161129

Available from: 2016-11-29 Created: 2016-10-31 Last updated: 2016-11-29Bibliographically approved

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CiteExportLink to record
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  • apa
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