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Differences in slags from these three
processes are due more to raw materials and desired final steel chemistry than to the
process itself.
The characteristic slag analysis is high
in iron, and in calcium reacted with other impurities to form mineral compounds which are
heavy, dense, hard, abrasion resistant, and dark colored.
Where there is short furnace time and if
there is excess lime addition, there may be unreacted lime, which requires aging before
slag use in some applications.
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