Conditioned Quicklime for Injection to a Molten Bath of a Steel-Making Vessel
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United States of America Patent
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Issued Date -
Jan 15, 2009
app pub date -
Feb 9, 2006
filing date -
Feb 9, 2006
priority date (Note) -
Abandoned
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Abstract
In a method of producing steel using a steel-making vessel, where lime is used as a flux material that is blown, from above, into a steel-making bath along with an oxygen stream, providing a flux material composition of calcium oxide having a particle size of less than 250 mesh, which contains a flow aid material that is a polymeric siloxane, in an amount of less than 0.5 percent by weight of the calcium oxide, and injecting the flux material composition through a lance along with oxygen into the steel-making bath contained in the steel-making vessel.
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