6.21 Why copper matte is put in silica lined converter?

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10 months ago

Copper matte contains Cu2S and FeS. When a blast of hot air is passed through molten matte took in a silica lined convertor, FeS present in matte is oxidized to FeO which combines with Silica (SiO2) to form FeSiO3, slag.

When the whole of iron has been removed as slag, some of the Cu2S undergoes oxid

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In the metallurgy of aluminium, purified Al2O3 is mixed with Na3AIF6 or CaF2 which lowers the melting point of the mixture and brings conductivity.

Malachite : CuCO3.Cu (OH)2

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Chemistry Ncert Solutions Class 12th 2023

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