Desulfurizing agent for pig iron and cast iron, and process for

Details Desulfurizing agent for pig iron and cast iron, and process for Desulfurizing agent for pig iron and cast iron, and process for

1993-08-12

1994-08-09

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Compositions

Solid treating composition for liquid metal or charge

75315, C21C 700, C21C 702

Patent

active

053362934

ABSTRACT:
The present invention describes an agent for the desulfurization of pig iron or cast iron, based on finely granulated magnesium and at least 3 w. % of an metallurgically silicious mineral with a bond, blend or crystal structure and/or one of the minerals syenite and/or rhyolite pure or as a mixture.
The desulfurizing agent may contain as an additional compound calciumcarbide and/or calciumoxide. The magnesium granule may be coated with these components.
This agent is preferrably fed to the iron melt either as a mixture or in the co-injection process as one compound through a lance where mixing is achieved with the second compound before entering into the iron melt.

REFERENCES:
patent: 3929464 (1975-12-01), Todd
patent: 3998625 (1976-12-01), Koros

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