Effect of Desulfurization of Liquid Steel with the Refining Flux

The liquid steel was refined in the laboratory and in converter steel shop with the mixture of CaO-Al₂O₃ and Cao-Al₂O₃-CaC₂. The influence of the mixture added amount on the desulfurization and total oxygen of steel has been investigated. Refinin of steel with the mixture of Cao-Al₂O₃, the desulfurization of 20%~40% was reached; Refining of steel with the mixture of CaO-Al₂O₃-CaC₂, the desulfurization of 40% was reached, and the total oxygen in the steel was reduced under 5×10^-5.