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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.

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sr71lives star
Answer has 4 votes
Currently Best Answer
sr71lives star
14 year member
80 replies avatar

Answer has 4 votes.

Currently voted the best answer.
Two tons of bauxite to produce one ton of aluminum,

link 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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paper_aero star
Answer has 2 votes
paper_aero star
17 year member
98 replies avatar

Answer has 2 votes.
On the other hand the BBC report says 4:1
link 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."

Nov 23 2013, 10:17 AM
avatar
sr71lives star
Answer has 2 votes
sr71lives star
14 year member
80 replies avatar

Answer has 2 votes.
How Aluminum is Produced - Rocks and Minerals
link 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.


Nov 23 2013, 1:26 PM
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