Slag
Escória
Rejection
of the reduction of iron ore, originating from the mixture of iron ore, coal,
coke, air and limestone in the blast furnaces, in the manufacture of steel.
These are basically oxides and other impurities. It is a residue with a high
content of oxides, such as silica and magnesia, which form together with the
melting of the metals at the beginning of the process for the production of pig
iron.
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