A review of phosphorus partition relations for use in basic oxygen steelmaking

Authors

Phillip Drain, University of WollongongFollow
Brian J. Monaghan, University of WollongongFollow
Guangqing Zhang, University of WollongongFollow
Raymond Longbottom, University of WollongongFollow
Michael W. Chapman, BlueScope Steel LimitedFollow
Sheng Chew, University of WollongongFollow

RIS ID

117148

Publication Details

Drain, P. B., Monaghan, B. J., Zhang, G., Longbottom, R. J., Chapman, M. W. & Chew, S. J. (2017). A review of phosphorus partition relations for use in basic oxygen steelmaking. Ironmaking and Steelmaking, 44 (10), 721-731.

Abstract

Phosphorus removal in basic oxygen steelmaking is a significant problem for integrated steelmakers. Phosphorus removal is required due to its deleterious effect on the mechanical properties of steel. However, this is progressively becoming more difficult due to the increasing phosphorus content of many iron ores. Many studies have investigated dephosphorisation and published empirical phosphorus partition (L_P) equations for a range of conditions. The structure of these equations has been used to develop a new partition relation that allows the effect of minor slag constituents such as TiO₂, Al₂O₃ and V₂O₅ on steel dephosphorisation to be tested. Al₂O₃ was found to have a weak negative effect on the measured L_P, except at the lower oxygen potential range tested, where a positive correlation was observed. Increasing TiO₂ and V₂O₅ contents were found to decrease the measured L_P; however, these correlations became less prevalent at the higher oxygen potential ranges tested.

Grant Number

ARC/IH130100017