Pk. Iwamasa et Rj. Fruehan, EFFECT OF FEO IN THE SLAG AND SILICON IN THE METAL ON THE DESULFURIZATION OF HOT METAL, Metallurgical and materials transactions. B, Process metallurgy and materials processing science, 28(1), 1997, pp. 47-57
Citations number
17
Categorie Soggetti
Material Science","Metallurgy & Metallurigical Engineering
Work has been conducted to investigate the effects of FeO in the slag
and silicon in the metal on hot metal desulfurization. Laboratory expe
rimental results show that FeO decreases and silicon increases the rat
e of desulfurization. Silicon in the metal is consumed by the reductio
n of FeO and also by the desulfurization reaction. A mathematical kine
tic model was developed to describe both the effects of silicon and Fe
O on desulfurization for the laboratory scale. The model predicts the
sulfur and silicon content in the metal and the FeO and sulfur content
in the slag as a function of time. It is based on few-component simul
taneous mass transfer: sulfur and silicon in the metal and FeO and sul
fur in the slag. Experimental results, the development of the kinetic
model, and a comparison of the model and experimental results are pres
ented.