6.9 State the role of silica in the metallurgy of copper.

Answers (1)
M manish

The role of silica in metallurgy of copper is to remove the FeO (iron oxide) produced during roasting as slag. If the sulphide ore contains iron, it mixed with silica (SiO_{2}) as flux before heating.  FeO combines with silica and produce iron silicate (FeSiO_{3}

FeO+SiO_{2}\rightarrow FeSiO_{3}(slag)

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