How much Bauxite is needed to produce one tonne of aluminium?

Question

How much Bauxite is needed to produce one tonne of aluminium?

Question #133539. Asked by romeomikegolf.
Last updated Nov 23 2013.
Originally posted Nov 23 2013 7:08 AM.

sr71lives

Answer has 4 votes

Currently Best Answer

sr71lives

15 year member
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Answer has 4 votes.

Currently voted the best answer.

Two tons of bauxite to produce one ton of aluminum,

http://www.rocksandminerals.com/aluminum/process.htm
Four tons of bauxite are required to produce 2 tons of alumina.

Nov 23 2013, 9:55 AM

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Answer 1

On the other hand the BBC report says 4:1

http://www.bbc.co.uk/news/magazine-25020651
"You have to melt the bauxite in another mineral called cryolite, and then pass an electric current through it, separating the oxygen atoms from the aluminium. It takes four tonnes of bauxite to produce one tonne of aluminium."

Answer 2

How Aluminum is Produced - Rocks and Minerals

www.rocksandminerals.com/aluminum/process.htm?
FACT: Four tons of bauxite are required to produce 2 tons of alumina. ... big cloth filters over steel frames - and remove much of the remaining solids in the liquor. ... FACT: Two tons of alumina are required to make one ton of aluminum.