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Aluminium production is achieved by two steps: First, alumina is obtained by refining bauxite in the Bayer process (termed alumina refining). The next step uses molten cryolite which dissolves alumina and then it is electrolytically reduced to aluminium (termed aluminium smelting). In 2011, European countries produced 3.2 million tonnes of bauxite out of the 15.5…
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