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Explain the process of obtaining 'blister copper' from copper matte'' with equations. |
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Answer» Solution :Copper matte is mixture of cuprous sulphide and little quantity of ferrous sulphide. Copper matte along with some quantity of silica is taken in CONVERTER in which HOT air is blown. (a) Remaining ferrous sulphide OXIDISES to ferrous oxide, which in turn combines with silica to form slag ferrous silicate `2FeS + 3O_(2) rarr 2FeO + 2SO_(2)"" FeO + SiO_(2) rarr FeSiO_(3)` (b) Part of cuprous sulphide oxidises to cuprous oxide which combines with remaining cuprous sulphide forming blister copper. `2Cu_(2)S + 3O_(2) rarr 2Cu_(2)O + 2SO_(2) "" 2Cu_(2)S + Cu_(2)S rarr 6Cu + SO_(2)` |
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