Describe the role of silica during …
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Bindu Agarwal 9 years ago
Silica (SiO2 ) is added in the reverberatory furnace during the extraction of Cu to remove impurities of iron oxide (FeO) present in the ore. Silica here acts as a flux and reacts with iron oxide gangue to remove it as slag, iron silicate.
FeO + SiO2 --------> FeSiO3
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