Fluidizing a lime-silica slag

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United States of America Patent

PATENT NO 4874428
SERIAL NO

07242981

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Abstract

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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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Patent Owner(s)

Patent OwnerAddress
ARMCO STEEL COMPANY L P A DE LIMITED PARTNERSHIP703 CURTIS STREET MIDDLETOWN OH 45043

International Classification(s)

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  • 1988 Application Filing Year
  • C21C Class
  • 68 Applications Filed
  • 0 Patents Issued To-Date
  • 0 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances19880255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lowry, Michael L Middletown, OH 1 3
Niedringhaus, Joyce C Middletown, OH 5 16

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