Low cost method of fluidizing cupola slag (b)

Details Low cost method of fluidizing cupola slag (b) Low cost method of fluidizing cupola slag (b)

C - Chemistry, Metallurgy

21

B

53/109

C21B 3/02 (2006.01) C21B 5/02 (2006.01) C21B 11/02 (2006.01) C21C 1/08 (2006.01)

Patent

CA 1067702

LOW COST METHOD OF FLUIDIZING CUPOLA SLAG (B) ABSTRACT OF THE DISCLOSURE A composition and method is disclosed for fluxing and fluidizing the slag in an acid-operated cupola, the method comprising adding to the charge therein a fluxing material effective to provide, by weight analysis of the slag, 30 to 42% CaO, 41 to 44% SiO2, 7 to 15% Al2O3, 0.5 to 4.0 TiO2, 1.6 to 3.2% MnO, less than 0.05% P2O5 and less than 1% sulfur. A fluxing composition is disclosed which is comprised by weight percentage of the metal charge comprising, when used with a limestone or a dolomitic limestone charge:. 1.5 to 3.5% limestone or dolomitic limestone and 0.5 to 1.5% FeO Fe2O3 Tio2.

236600

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