1.

What is the role of silica in the extraction of copper?

Answer»

Solution :The copper ore is heated in a reverberatory FURNACE after MIXING with silica. Iron oxide forms a slag of `FeSiO_(3)" with "SiO_(2)`
`{:(FeO + SiO_(2) to FeSiO_(3)), ("Slag"):}`
The slag is removed and copper MATTE is then charged into the silica lined converter.


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