Method of de-chroming and/or depleting the MgO content of steel slag
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United States of America Patent
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Jun 26, 2001
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N/A
app pub date -
Apr 23, 1999
filing date -
Oct 23, 1996
priority date (Note) -
Expired
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Abstract
In a process for dechroming, and/or depleting the MgO content of, steel slags, oxygen is introduced into the liquid steel slag to an extent sufficient for converting iron quantitatively to iron oxide and at least 5% by weight of the iron oxide contained in the slag to iron-III-oxide. The oxidized slag obtained solidifies and is disintegrated, whereupon the paramagnetic portions formed are magnetically isolated and separated from the dechromed slag.
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