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Effect of CaF(2)on Phosphorus Refining from Molten Steel by Electric Arc Furnace Slag using Direct Reduced Iron (DRI) as a Raw Material
- Authors
- Oh, Min Kyo; Kim, Tae Sung; Park, Joo Hyun
- Issue Date
- Dec-2020
- Publisher
- ASM International
- Citation
- Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science, v.51, no.6, pp 3028 - 3038
- Pages
- 11
- Indexed
- SCIE
SCOPUS
- Journal Title
- Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
- Volume
- 51
- Number
- 6
- Start Page
- 3028
- End Page
- 3038
- ISSN
- 1073-5615
1543-1916
- Abstract
- The effect of CaF(2)addition on dephosphorization reaction between molten steel and electric arc furnace (EAF) slag using direct reduced iron (DRI) at 1823 K (1550 degrees C) was investigated. Basicity, the thermodynamic parameter affecting the removal capacity of phosphorus (i.e.,phosphate capacity), decreased using DRI due to an increased SiO(2)concentration in the slag. To minimize slag volume and maximize dephosphorization efficiency, the CaF(2)was added to the slag. As CaF(2)content increased (0 to 10 mass pct), dephosphorization efficiency also increased. Thermodynamic analysis in conjunction with slag structural studies using Raman spectroscopy were conducted to explain the complicated phenomena. The results exhibited that even 5 to 6 mass pct CaF(2)can improve the dephosphorization efficiency when DRI is used as raw material in an EAF process.
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Related Researcher
- Park, Joo Hyun
- ERICA 공학대학 (DEPARTMENT OF MATERIALS SCIENCE AND CHEMICAL ENGINEERING)