Analysis of Dephosphorization Reaction Using a Simulation Model of Hot Metal Dephosphorization by Multiphase Slag

In most cases, the stag used in hot metal dephosphorization is saturated with dicalcium silicate, and the partition ratio of phosphorus between dicalcium silicate and liquid slag is, high. These results indicate the important role of solid dicalcium silicate in dephosphorization, In order in Understand reaction kinetics and obtain an optimum treatment method, it is very important, in know file influence of the solid phases, in the slag. In this study, it new reaction model for hot metal dephosphorization is applied to the experimental results; this model consider the effects of dicalcium Silicate and the dissolution late of lime. By the calculation results, the influence of various factors oil the reaction efficiency is discussed. The calculated results are in almost good agreement with the experimental results, obtained by various Slap compositions and by various methods of flux and oxide additions to hot metal. By the Calculation, in older to perform the dephosphorization reaction efficiently, we clarify the existence of the optimum basicity that considers the precipitation behaviour of the solid phase in slap, Also, the optimum condition be between the stirring energy and the supplying rate of flux and oxide was found.