The normal application is to produce alumina-reinforced aluminium; the process also allows the growth of ceramic layers inside metal encasements, providing pre-stressing.
Reverberatory and crucible furnaces are common for producing aluminium, bronze, and brass castings.
The Hall-Heroult process produces aluminium with a purity of above 99%.
Electric power represents about 20% to 40% of the cost of producing aluminium, depending on the location of the smelter.
British Aluminium Company started hydropower plant development in 1906, and produced aluminium from 1908 to 1945.
For example, it is used to smelt minerals containing AlO to produce aluminium.
At Årdal, the aluminium factory produced semi-finished aluminium that went on to be transformed into various products in other factories.
Sodium hydroxide enables industries that produce paper, soap, and aluminium.
There are some restrictions however, because of the country's vast mineral wealth including diamonds, gold iron ore and bauxite, which is used to produce aluminium.
It involved the reduction of anhydrous aluminium chloride with potassium, and produced powdered aluminium.