Iron desulfurization additive and method for introduction into hot metal
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United States of America Patent
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Jun 4, 1991
Grant Date -
N/A
app pub date -
Jul 5, 1990
filing date -
Jul 5, 1990
priority date (Note) -
Expired
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Abstract
An additive for use in the desulfurization of molten iron is disclosed. The additive comprises a granular mixture of metallic magnesium, calcium oxide and a small amount of a hydrocarbon-containing material which provides a volatile gas producing component to the mixture. The hydrocarbon-containing material is preferably coal, carbon black, wood flour or a high density polyethylene. The additive is intended to be pneumatically injected into the melt in a stream of nonoxygenated carrier gas.
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