In order to accurately separate the slag and metal, it is necessary to accurately estimate the sedimentation velocity of the iron particle in the slag. On the other hand, if the iron particle suspended in the slag does not settle in the iron phase after the reaction process is completed, the slag loss occurs. 1, 2, 3, 4) Suspension of these particles increases the reaction area, which improves reactivity. At that time, at the slag-metal interface, a phenomenon occurs in which iron particles are suspended into the slag or slag particles are entrapped into the molten iron due to stirring or passage of gas.
In the steelmaking process, gas is blown into a reaction vessel in which slag and molten metal coexists, and the melts are strongly stirred to promote the reaction.
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