Process for desulfurizing molten pig iron

Details Process for desulfurizing molten pig iron Process for desulfurizing molten pig iron

1980-02-15

1983-02-22

Rosenberg, P. D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 53, C21C 702

Patent

active

043746640

ABSTRACT:
The present invention provides an improved process for desulfurization of molten pig iron by a first step of adding powdered aluminum to the molten pig iron and a second step of adding CaO to the molten pig iron, the improvement comprising adding the aluminum as a powdery mixture with CaO, alumina or both, whereby splashing associated with the addition of aluminum alone is reduced.

REFERENCES:
patent: 3929464 (1975-12-01), Todd
patent: 3957502 (1976-05-01), Cull
patent: 3998625 (1976-12-01), Koros
patent: 4039320 (1977-08-01), Uemura
patent: 4169724 (1979-10-01), Freissmuth

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