Effect of various components on the distribution of phosphorus in CaO–FeO–MgO–SiO₂–MnO–TiO₂–V₂O₅–P₂O₅ slag based on IMCT

ABSTRACT

A thermodynamic calculation model of phosphorus distribution ratio between CaO–FeO–MgO–SiO₂–MnO–TiO₂–V₂O₅–P₂O₅ slags and molten metal has been developed based on the ion and molecule coexistence theory (IMCT). The calculated phosphorus distribution ratio shows a good agreement with the measured ones by the data of industrial trial, which proves the reliability of this model. Therefore, the model is used to study the effects of TiO₂, V₂O₅, slag basicity, FeO, MgO and MnO on phosphorus distribution. The results illustrate that the effects on phosphorus distribution from V₂O₅ and TiO₂ are non-negligible and they are almost the same, slag basicity and FeO have the most significant effects on phosphorus distribution, while MgO and MnO have the least.

KEYWORDS:

• Phosphorus distribution ratio
• CaO–FeO–MgO–SiO₂–MnO–TiO₂–V₂O₅–P₂O₅ slags
• ion and molecule coexistence theory (IMCT)
• calculation model
• effect on phosphorus distribution ratio
• slag basicity
• content of MgO and MnO
• content of TiO₂ and V₂O₅

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This research was financially supported by the National Natural Science Foundation of China (No. 51674021) and Major Science and Technology Innovation Project of Shandong Province (No. JZZY010358). The authors would like to extend their sincere gratitude to those who provided help and assistance.