Fluidizing a lime-silica slag
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United States of America Patent
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Oct 17, 1989
Grant Date -
N/A
app pub date -
Sep 12, 1988
filing date -
Sep 12, 1988
priority date (Note) -
Expired
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Abstract
A method of fluidizing a cold lime-silica slag covering a molten metal. An acid flux is prepared from a particulate admixture of sodium fluoroaluminate and sodium silicate. The flux is mixed with the cold slag forming a fluid slag having at least 1% by weight F- and at least 1% by weight Na.sub.2 O. The treated slag has a reduced melting point allowing it to be mechanically skimmed from the molten metal and has a high sulfur capacity.
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