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a. How and why is bauxite soil used in aluminum production? b. For a grade of...

a. How and why is bauxite soil used in aluminum production?

b. For a grade of bauxite soil, calculate the amount of bauxite soil required to produce 1000 kg of aluminum using that grade of bauxite soil.

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Answer #1

bauxite is the third most abundant ore available from earths crust and it is used in manufacture of aluminium as it consists 15-25% of aluminium.

bauxite can be processed by three steps

a)purification of bauxite

b) reduction of alumina

c)electrolytic purification of aluminium.

a) purification of bauxite can be done by either baeyers process or halls process or serpecks process.

b) electrolytic reduction of alumina so obtained can be done by hall heroults process

c) purification of alumina can be done by hoopes process.

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