Method for treating slag

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United States of America Patent

PATENT NO 11479830
APP PUB NO 20200354812A1
SERIAL NO

16643326

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Abstract

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A method for treating converter slag for the purpose of recirculating iron, wherein a converter slag is brought into contact with oxygen in such a way that by means of turbulence, the slag is mixed, the iron and iron oxide components that are present are oxidized, and the slag is then allowed to stand in the vessel or a vessel until a segregation into a solidifying, silicate and phosphorus-rich first fraction and an underlying liquid iron oxide-rich second fraction has taken place, with the converter slag that is used being mixed with a partial flow from the iron oxide-rich second fraction in such a way that the total FeO content of the slag that is to be treated with oxygen is over 35% by weight, thus enabling the segregation into two fractions.

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Patent Owner(s)

Patent OwnerAddress
VOESTALPINE STAHL GMBH4020 LINZ

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Schmid, Herbert Sipbachzell, AT 33 337

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