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Improvement of Dephosphorization Reaction by Using Multiphase Slag

Shin-ya Kitamura, Farshid Pahlevani

2011endephosphorizationslagreactionkineticssimulation

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In this study, we investigate the dephosphorization reaction in steelmaking by employing a multiphase slag approach. The objective is to enhance the efficiency of phosphorus removal from molten metal during the steelmaking process. We conducted fundamental experiments to evaluate the phosphorus enrichment rate from liquid slag to solid solutions, particularly focusing on the partition ratio of phosphorus between these phases. By adjusting slag composition and temperature, we analyzed the precipitation of a solid solution composed of dicalcium silicate (C2S) and tricalcium phosphate (C3P), and its impact on the dephosphorization behavior. Our results indicate that the mass transfer rate of phosphorus is significantly influenced by changes in slag basicity, FeO content, and temperature. Furthermore, a simulation model was developed to discuss the effects of various factors on the reaction efficiency, demonstrating a strong correlation between the fraction of solid solution present in the slag and the dephosphorization rate. This study provides insights into optimizing slag compositions and operational parameters for improved dephosphorization in steelmaking.

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Cite This Work

@article{cade406d-aca3-4794-b22b-9f8728ede788,
  title={Improvement of Dephosphorization Reaction by Using Multiphase Slag},
  author={Shin-ya Kitamura and Farshid Pahlevani},
  year={2011},
  language={en}
}
TY  - JOUR
TI  - Improvement of Dephosphorization Reaction by Using Multiphase Slag
AU  - Shin-ya Kitamura
AU  - Farshid Pahlevani
PY  - 2011
LA  - en
ER  -

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