Method of treating steel mill waste
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United States of America Patent
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Nov 12, 1996
Issued Date -
N/A
app pub date -
Jun 26, 1995
filing date -
Oct 24, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of treating steel mill waste containing iron oxides and silica includes reacting the steel mill waste with an alkali aqueous solution in an amount sufficient to raise the pH to at least about 7 to solubilize silica to form soluble silicate compounds and silica gels and thereby produce a chemically reactive mixture. The mixture is reacted with an alkaline silicic compound to produce a solid, stable, non-polluting material.
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