Guest
This series of three films produced by ALCOA to educate the public about the aluminum industry focuses on the production of aluminum. The films discus Bauxite mining, refining, smelting, and delivery. The various aspects of the production of aluminum are shown including Bauxite Refining (:09), Smelting of Aluminum (5:30), and Aluminum Fabricating Process (10:10). The Bayer process shown is the principal industrial means of refining bauxite to produce alumina (aluminium oxide). Bauxite, the most important ore of aluminium, contains only 30–54% aluminium oxide, (alumina), Al2O3, the rest being a mixture of silica, various iron oxides, and titanium dioxide. The aluminium oxide must be purified before it can be refined to aluminium metal. Alcoa Corporation (from Aluminum Company of America) is an American industrial corporation. It is the world's fifth largest producer of aluminum, with corporate headquarters in New York City. From its operational base in Pittsburgh, Pennsylvania in the United States, Alcoa co
