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Thermodynamic Database of P2O5-containing Oxide Systems for the Dephosphorization Process in Steelmaking

In-Ho Jung, Pierre Hudon

2012endephosphorizationthermodynamicsteelmakingoxidationmodeling

Abstract

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The Na2O-MgO-CaO-FeO-Fe2O3-Al2O3-SiO2-P2O5 system is central to both the Basic Oxygen Furnace (BOF) process and the hot metal dephosphorization process. This study aims to advance the understanding of phosphorus (P) removal from molten iron through a systematic thermodynamic modeling of the P2O5-containing oxide systems, addressing the complexities that have limited prior investigations. Extensive experimental research has highlighted the need for improved phase equilibrium understanding within these oxide systems. This study presents a detailed thermodynamic modeling of unary, binary, and ternary P2O5 systems, supplemented by key phase diagram experiments. The database developed from this modeling is applied to evaluate dephosphorization via multi-component slag in the BOF process, with results critically compared against existing experimental data. All thermodynamic calculations utilized FactSage software to ensure precision and reliability. This work contributes to the steelmaking industry by providing a comprehensive thermodynamic framework that facilitates enhanced P removal efficiency during the steel production process.

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Cite This Work

@article{3fe30d51-cad2-439b-b383-c333080014f1,
  title={Thermodynamic Database of P2O5-containing Oxide Systems for the Dephosphorization Process in Steelmaking},
  author={In-Ho Jung and Pierre Hudon},
  year={2012},
  language={en}
}
TY  - JOUR
TI  - Thermodynamic Database of P2O5-containing Oxide Systems for the Dephosphorization Process in Steelmaking
AU  - In-Ho Jung
AU  - Pierre Hudon
PY  - 2012
LA  - en
ER  -

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