Method of desulfurizing molten metal in a plasma fired cupola

Details Method of desulfurizing molten metal in a plasma fired cupola Method of desulfurizing molten metal in a plasma fired cupola

C - Chemistry, Metallurgy

21

C

53/105, 53/357

C21C 7/064 (2006.01) C21B 13/12 (2006.01) F27B 1/08 (2006.01)

Patent

CA 1338198

A method of desulfurizing iron in a plasma fired cupola having a plurality of feed nozzles each of which have a particulate feed and a plasma torch connected thereto; a fluxing agent such as CaO, MgO, CaCO3, MgCO3 or CaCO3MgCO3 is fed to the feed nozzle and melted by the plasma torch; the molten fluxing agent mixes directly with the molten iron in the cupola and reacts with the sulfur in the iron; the reacted and unreacted fluxing agent combine with the slag reducing the viscosity making the slag flow better and producing a low sulfur iron in the cupola.

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