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Carbon Distribution Behavior Between Molten Iron and CaO-Al2O3-FeO-SiO2-MgO Slag at 1873 K
- Authors
- Jun, Yeong Jin; Park, Geun Ho; Park, Joo Hyun
- Issue Date
- Oct-2024
- Publisher
- Springer
- Citation
- Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science, v.56, no.1, pp 76 - 83
- Pages
- 8
- Indexed
- SCIE
SCOPUS
- Journal Title
- Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
- Volume
- 56
- Number
- 1
- Start Page
- 76
- End Page
- 83
- ISSN
- 1073-5615
1543-1916
- Abstract
- The carbon solubility of the CaO-Al2O3-FeO-SiO2-MgO slag, the main system during the Ruhrstahl-Heraeus (RH) vacuum degasser process, has been measured at 1873 K (1600 °C) to understand the impact of slag composition on the solubility of carbon in molten slag during ultra-low-carbon (ULC) steel production. The stable form of carbon was demonstrated as a carbonate CO32- by plotting the log[(masspctC)/aC] ratio against logpO2 in the range of -11<logpO2,atm<-9. The carbon solubility of the CaO-Al2O3-FeO-SiO2-MgO slag was estimated using the Pelton-Eriksson-Serrano model. The distribution ratio of carbon increased with increasing FeO content due to the higher oxygen potential and the increased basicity of slag. The carbonate capacity of the CaO-Al2O3-FeO-SiO2-MgO slag could be expressed as a linear function of the activity of lime and optical basicity. © The Minerals, Metals & Materials Society and ASM International 2024.
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Related Researcher
- Park, Joo Hyun
- ERICA 첨단융합대학 (ERICA 신소재·반도체공학전공)