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Aluminium Smelting is the second most important metallurgical industry in India. Aluminium is light, resistant to corrosion, a good conductor of heat, malleable and can be a strong alloy. It is used to manufacture aircraft, utensils and wires. It is used as a substitute for steel, copper, zinc and lead in many industries.
For example - Aluminium is used in a wide range of finished goods such as the production of coils, cans, foils, wires, etc.
Aluminium smelting plants in the country are located in the following places:
Odisha
West Bengal
Kerala
Uttar Pradesh
Chhattisgarh
Maharashtra
Tamil Nadu
Process of Manufacturing in Aluminium Industry:
The flow chart given below shows the process of manufacturing aluminium. Regular supply of electricity and an assured source of raw material at minimum cost are the two prime factors for the location of the industry.
Bauxite is the raw material used in the smelters. It is a very bulky, dark reddish-coloured rock.
4 to 6 tonnes of bauxite ------> 2 tonnes of alumina ----------> 1 tonne of aluminium
Alumina, also called aluminium oxide, synthetically produced aluminium oxide (Al2O3) is a white or nearly colourless crystalline substance that is used as a starting material for the smelting of aluminium metal.
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