Process for desulphurization of molten pig iron

摘要

This invention relates to an improved method for desulphurizing molten pig iron by adding a desulphurizing agent to molten pig iron bath contained in a ladle and agitating said bath with an impeller placed in said bath, wherein downward streams are caused in said bath by inserting one or more guide plates in the upper portion of the bath thereby to draw the desulphurizing agent into the downward streams and an improved rate of desulphurization is obtained even when the rotation speed of said impeller is lower than when no guide plate is employed.