Process for desulfurization of ferrous metal melts

Details Process for desulfurization of ferrous metal melts Process for desulfurization of ferrous metal melts

1985-07-24

1986-07-15

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 53, C21C 702

Patent

active

046004343

ABSTRACT:
A process for magnesium desulfurization of ferrous metal melts in a vessel comprising the provision of a fluid, high sulfur capacity slag wherein the weight ratio of slag constituents associated with sulfur to slag constituents associated with oxygen is greater than 0.8, followed by addition of magnesium to the melt in an amount sufficient to combine with the sulfur in the melt, transfer to the sulfur removed by the magnesium addition to the slag, and retention of the removed sulfur in the slag, thereby improving magnesium desulfurization efficiency and substantially eliminating sulfur reversion from the slag back to the melt.

REFERENCES:
patent: 3998625 (1976-12-01), Koros
patent: 4040818 (1970-08-01), Clegg
patent: 4209325 (1980-06-01), Cooper
patent: 4286984 (1981-09-01), Luyckx

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