Aluminum industry in the United States

US production of aluminum, 1940-2014. Data from USGS

The aluminum industry in the United States in 2014 produced 1.72 million metric tons of primary aluminum, worth 3.97 billion dollars, at nine aluminum smelters. In addition, the US produced 1.70 million tons of secondary aluminum from old (post-consumer) scrap, and 1.93 million tons of aluminum from new (manufacturing) scrap. The US was the world's 6th largest producer of primary aluminum in 2014.The industry employed 29,000 people. [1]

Primary production

In 2014, primary aluminum, which is produced from bauxite, was produced by three companies at nine smelters. Primary aluminum is preferred for high-quality uses such as aircraft. The leader in US production was Alcoa. Also operating multiple primary plants was Century Aluminum.

Primary Aluminum Smelters in the US

Name Location Owner Status and Date
Warrick Plant Evansville, Indiana Alcoa Closed
Intalco Plant Ferndale, Washington Alcoa
St. Laurence Plant Massena, New York Alcoa Closed
Massena Plant Massena, New York Alcoa
Mt Holly Plant Mount Holly, South Carolina Century Aluminum Operating, December 2014[2]
Rockdale Plant Rockdale, Texas Alcoa Closed
Wenatchee Plant Wenatchee, Washington Alcoa Closed
Hawesville Plant Hawesville, Kentucky Century Aluminum
Ravenswood Plant Ravenswood, West Virginia Century Aluminum Closed, July 2015[3]
Sebree Plant Sebree, Kentucky Century Aluminum Operating, May 2015[4]
Columbia Falls Plant Columbia Falls, Montana Glencore Closed in March 2015[5]
Noranda Plant New Madrid, Missouri Noranda Idled, March 2016[6]
Ormet Plant Hannibal, Ohio Ormet Closed, August 2014[7]

Secondary production

Secondary production is the recycling of metallic aluminum derived from scrap. Secondary production can be from either new scrap (from aluminum manufacturing), or from old scrap (post-consumer scrap such as recycled aluminum cans).

Raw materials

Proportion of US aluminum production from various raw materials. Data from USGS.

The principal raw materials for aluminum production are bauxite (for primary production) and scrap (for secondary production).

Primary aluminum production consumes a great deal of electricity, which makes up about a third of the cost. Making a ton of primary aluminum consumes at least 12,500 kW-hr, and most plants consume 14,500 to 15,000 kW-hr per ton of primary aluminum.[8]

Secondary production of a given unit of aluminum requires about 10% of the electricity of primary production.

The United States mined production of bauxite for primary aluminum production is insignificant. In 2013, the US mined only 1.3 percent of the bauxite it used, US mined production being less than 0.1 percent of world production.

International trade

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 metal used in 2014. Of the imported aluminum, 63% came from Canada.[9]

History of US aluminum production

The US used to be a much more important factor in the world primary aluminum market. As recently as 1981, the US produced 30% of the world's primary aluminum, and for many years up through 2000, the US was the world's largest producer of primary aluminum. In 2014, by contrast, the US ranked sixth in primary aluminum production, and provided only 3.5% of world production.

US production of primary aluminum peaked in 1980 at 4.64 million metric tons. Since then, US primary aluminum production has fallen by more than half, but secondary production has increased, making up much of the difference. In the 1950s and 1960s, primary production made up about 80% of the aluminum output. In 2014, primary production made up 32%, while secondary from new scrap made up 36% and secondary from old scrap made up 32% of US aluminum production.[10]

References

  1. ↑ E. Lee Bray, Aluminum, US Geological Survey, Mineral Commodity Summary 2015, Jan.2015.
  2. ↑ David Wren, "Century Aluminum completes acquisition of Mt. Holly facility," Post and Courier, 1 Dec. 2015
  3. ↑ Greg Matics, "Century Aluminum announces permanent closure of Ravenswood smelting plant," Jackson Newspapers, 30 July 2015.
  4. ↑ Associated Press, "Union workers locked out at aluminum smelter," Archived July 11, 2015, at the Wayback Machine. WBKO, 12 May 2015.
  5. ↑ "Columbia Falls Aluminum Co permanently closed," Daily Interlake, 3 March 2015.
  6. ↑ Noranda Aluminum,
  7. ↑ [John Milam, "Shutdown of Ohio aluminum giant Ormet appears final," People's World, 5 August 2014
  8. ↑ Stuart Burns, "Power costs in the production of primary aluminum," Metal mIner, 26 Feb. 2009.
  9. ↑ E. Lee Bray, Aluminum, US Geological Survey, Mineral Commodity Summary 2015, Jan.2015.
  10. ↑ E. Lee Bray, Aluminum, US Geological Survey, Mineral Commodity Summary 2015, Jan.2015.

See also

This article is issued from Wikipedia - version of the 11/15/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.