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Please send me method of extraction of tin from casseterite notes

Please send me method of extraction of tin from casseterite notes

Grade:12th pass

1 Answers

Vikas TU
14149 Points
5 years ago
he Cassiterite is then mixed with approximately equal volumes of charcoal dust and a mixture of Sodium and Potassium carbonates (as a flux). The crucible used must have a lid to prevent atmospheric Oxygen from forming excessive Carbon dioxide. 

During smelting, the flux helps to remove impurities from the metal being formed. 

The overall reaction (upon heating) is: 

SnO2 (s) + 2 C (s) --> Sn (l) + 2 CO (g) 

Some write this as: 

SnO2 (s) + C (s) --> Sn (l) + CO2 (g) 

The liquid Tin is drained or poured into molds.

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