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Alcoa is a city in Blount County, Tennessee, United States.Its population was 10,978 at the 2020 census. [5] It is part of the Knoxville, TN Metropolitan Statistical Area.. As its name suggests, Alcoa was the site of a large aluminum smelting plant owned and operated by the Alcoa corporation (Aluminum Company of America).
The US imported nearly all the bauxite (the only commercial aluminum ore) used in producing primary aluminum. For years, the US has produced less than 1% of the bauxite used to make aluminum. The US also imported 33 percent of the aluminum that was used in 2014. Of the imported aluminum, 63% came from Canada. [1] [19]
Kaiser Aluminum Corporation is an American ... Tennessee. In 2020, it recorded ... Differences in ore composition and increased capacity necessitated a $23,000,000 ...
Bauxite forms by the weathering of aluminum-rich and silica-poor rocks in hot, humid, climates, at places with good drainage. Under the proper conditions, weathering disintegrates the aluminium silicate minerals, and dissolves and removes the silica, creating bauxite. The mined US bauxite deposits have all been in the southeastern United States.
The plant was established in 2003 as part of Toyota's Bodine Aluminum division, which also operates a plant in Troy, Missouri. [3] In 2020, the company's name changed from Bodine Aluminum to Toyota Motor Manufacturing Tennessee. [4] The company still shares leadership with the Missouri plant, now renamed Toyota Motor Manufacturing Missouri.
This is a list of primary aluminium smelters in the world. Primary production is the process by which alumina is smelted to pure aluminum. [1] Secondary production is the process of recycling aluminum scrap into aluminum that can be used again. [2] Capacity here refers to metric tonnes of output aluminum. The list is incomplete and missing some ...
Alumina is extracted from the ore bauxite by means of the Bayer process at an alumina refinery. This is an electrolytic process, so an aluminium smelter uses huge amounts of electric power; smelters tend to be located close to large power stations, often hydro-electric ones, in order to hold down costs and reduce the overall carbon footprint ...
The oxygen in the ore binds to carbon at high temperatures, as the chemical potential energy of the bonds in carbon dioxide (CO 2) is lower than that of the bonds in the ore. Sulfide ores such as those commonly used to obtain copper, zinc or lead, are roasted before smelting in order to convert the sulfides to oxides, which are more readily ...