Tetsu-to-Hagane
Online ISSN : 1883-2954
Print ISSN : 0021-1575
ISSN-L : 0021-1575
Dephosphorization and Desulfurization Equilibria between Liquid Iron Containing Cr and BaO-Cr2O3-FetO Slags
Ryo INOUELi HONGHideaki SUITO
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1988 Volume 74 Issue 10 Pages 1939-1945

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Abstract

Phosphorus and sulfur distribution between MgO-saturated BaO-Cr2O3-FetO (-BaF2) slags and liquid iron containing Cr ([%Cr]= 016) has been measured in the temperature range from 1550 to 1650°C. The refining limit of dephosphorization in steel containing Cr and hot metal was discussed by using the values for phosphate capacity CP (=(%P)/[aP·aO5/2]). Thermodynamic analysis indicates that the phosphorus partition ratio increases with carbon up to a critical value and decreases beyond that.

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© The Iron and Steel Institute of Japan
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