Why Is Aluminium Oxide Purified Near Bauxite Quarry
Why is the purification of aluminium oxide usually done ...
Dec 15, 2012· Best Answer: The answer is that it isn't. Reduction of Bauxite to Aluminium is done using an electrolytic process and this requires huge amounts of electricity. -Power costs are usually higher than transportation costs so it is cheaper to take the ore to the power source, than vice versa.
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why is the purification of aluminium oxide done near bauxite quarries. Bauxite ,Bauxite ore. Bauxite is a aluminum oxide/hydroxide-rich rock. It is the richest source of aluminum compared with any other common rock, and is the best ...Bauxite mining is a very import quarry process in many countries. why is the purification of aluminium oxide ...
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Sep 23, 2015· Why is the purification of aluminum oxide usually done near bauxite quarries?
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Sep 23, 2015· Why is the purification of aluminum oxide usually done near bauxite quarries?
GCSE CHEMISTRY - Extraction of Aluminium - …
The purified dry ore, called alumina, is aluminium oxide - Al 2 O 3. The alumina must be molten for electrolysis to work, since the ions are not free to move in the solid state. Unfortunately, alumina has a high melting point (2040 °C) and it is not practical to do electrolysis at such a high temperature. In the middle of the nineteenth century it was …
BBC - GCSE Bitesize: Extraction of aluminium
Aluminium ore is called bauxite. The bauxite is purified to yield a white powder, aluminium oxide, from which aluminium can be extracted. The extraction is done by electrolysis. But first the aluminium oxide must be made molten so that electricity can pass through it.
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Aluminium
It is found in particularly large quantities in Jamaica, Brazil, Guinea, China and India. The aluminium occurs in the bauxite ores as the hydroxide Al(OH) 3 (gibbsite) and AlO(OH) (boehmite and diaspore). (b) Purification of bauxite to aluminium oxide. The principal impurities in bauxite are iron(lll) oxide (3 - 25%), silica (1 - 7%) and titanium dioxide (2 …
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Aluminium oxide (British English) or ... Molten aluminium oxide near the melting temperature is roughly 2/3 tetrahedral ... Bauxite is purified by the Bayer process:
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(iii)€€€€€The purification of the aluminium oxide is usually done near to the bauxite quarries. Suggest one reason why. ..... (1) (c)€€€€Aluminium is used to make many things including cans. During one year in the USA: •€€ 100 billion aluminium cans were sold •€€ 55 billion aluminium cans were recycled. Give one environmental impact of …
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Bauxite Ore Processing: ... The bauxite is purified by the Bayer Process. ... After this stage the purified aluminum oxide is heated to evaporate the water.
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