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Question

Draw neat and labelled diagram of Bessemer converter used in the extraction of copper.

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Solution

Bessemer converter used in extraction of copper: Copper metal is extracted from molten matte through bessemerisation. The matte is introduced into bessemer converter which uphold by tuyeres. The air is blown through the molten matte. Blast of air converts Cu2S partly into Cu2O which reacts with remaining Cu2S to give molten copper.
2Cu2S+3O22Cu2O+2SO2
2Cu2O+Cu2S6Cu+SO2
The copper so obtained is called "Blister copper" because as it solidifies, SO2 hidden in it escapes out as bubbles producing blister on its surfaces. The blister copper is 99% pure.
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