Common production use of aluminum is steel objects. Option A.
Bauxite minerals are sent to refineries where the clay is washed out and the bauxite is run through a mill to produce a more stable material. The production of aluminum from bauxite is his two-step process of refining bauxite to obtain alumina and smelting alumina to produce aluminum.
Bauxite contains many impurities such as iron oxide silica and titanium dioxide. Aluminum is manufactured in two stages. The Bayer process refines bauxite ore into alumina, and the Hall-Heroult process refines alumina to liberate pure aluminum. Aluminum can be extracted from some clays but the most common aluminum ore is a substance called bauxite.
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