Desulfurizing iron

Details Desulfurizing iron Desulfurizing iron

1989-05-09

1990-04-10

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Producing or treating free metal

75537, C21C 702

Patent

active

049157329

ABSTRACT:
The efficiency of the use of desulfurizing agents, particularly calcium carbide- and calcium oxide-based desulfurizing agents, to decrease the sulfur content of molten iron is improved by adding a pulse of magnesium, aluminum or calcium metal at a critical concentration of sulfur and oxygen in the molten metal. The improved efficiency enables less desulfurization agent to be employed for the same residual sulfur concentration, with consequently decreased reaction time and costs.

REFERENCES:
patent: 3998625 (1976-12-01), Koros
patent: 4266969 (1981-05-01), Koros
patent: 4277279 (1981-07-01), Kerlin et al.

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