A new technique is presented to recycle ladle slag within the electric
arc furnace through the injection system. The dilution of the chemical
species contained in the slag and their combination with the species
featuring the EAF slag afford a double advantage: the final slag
is structured by chemical species that do not lead to the formation
of powders and better stabilize the foaming slag. The industrial
results are analyzed on the basis of the chemical species identification
supported by thermodynamic modelling.