Arc steelmaking

Details Arc steelmaking Arc steelmaking

C - Chemistry, Metallurgy

21

B

53/109

C21B 3/06 (2006.01) C21C 5/52 (2006.01) C21C 5/54 (2006.01)

Patent

CA 1079072

ABSTRACT OF THE DISCLOSURE The invention provides a slag conditioner for use in electric arc steelmaking which comprises 30 to 80% by weight of alumina, 10 to 30% by weight of aluminium 5 to 40% by weight fluorspar and 0 to 20% by weight of alkali metal carbonate. The conditioner is added with lime to deoxidised steel suitably in an amount Or from 5 to 15 Kg/tonne of steel to promote rapid re- duction of the initial refining slag iron oxide content together with increased slag fluidity and a faster rate of lime dissolution to form a reactive slag. - 1 -

257038

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