Support this channel: https://www.patreon.com/jeffquitney
more at http://scitech.quickfound.net/
"Aluminum and its many chemical treatment methods."
Originally a public domain film from the Library of Congress Prelinger Archives, slightly cropped to remove uneven edges, with the aspect ratio corrected, and one-pass brightness-contrast-color correction & mild video noise reduction applied.
The soundtrack was also processed with volume normalization, noise reduction, clipping reduction, and/or equalization (the resulting sound, though not perfect, is far less noisy than the original).
Wikipedia license: http://creativecommons.org/licenses/by-sa/3.0/
Alcoa Inc. (NYSE: AA) (from Aluminum Company of America) is the world's third largest producer of aluminum, behind Rio Tinto Alcan and Rusal. From its operational headquarters in Pittsburgh, Pennsylvania, Alcoa conducts operations in 31 countries. Alcoa is a world leader in the production and management of primary aluminum, fabricated aluminum, and alumina combined, through its active and growing participation in all major aspects of the industry: technology, mining, refining, smelting, fabricating, and recycling. Aluminum and alumina represent more than three-fourths of Alcoa's revenue. Non-aluminum products include precision castings and aerospace and industrial fasteners. Alcoa's products are used worldwide in aircraft, automobiles, commercial transportation, packaging, building and construction, oil and gas, defense, and industrial applications.
In May 2007 Alcoa made a $27 billion hostile takeover bid for Alcan, a former subsidiary, aiming to unite the two companies and form the world's largest aluminum producer. The takeover bid was withdrawn after Alcan announced a friendly takeover by Rio Tinto in July 2007...
In 1886, Charles Martin Hall, a graduate of Ohio's Oberlin College, discovered the process of smelting aluminum, almost simultaneously with Paul Héroult in France. He realized that by passing an electrical current through a bath of cryolite and aluminum oxide, the then semi-rare metal aluminum remained as a byproduct. This discovery, now called the Hall-Héroult process, is still the only process used to make aluminum worldwide.
Probably fewer than ten sites in the United States and Europe produced any aluminum at the time. In 1887, Hall made an agreement to try his process at the Electric Smelting and Aluminum Company plant in Lockport, New York, but it was not used and Hall left after one year. On Thanksgiving Day 1888, with the help of Alfred E. Hunt, he started the Pittsburgh Reduction Company with an experimental smelting plant on Smallman Street in Pittsburgh, Pennsylvania. In 1891, the company went into production in New Kensington, Pennsylvania. In 1895, a third site opened at Niagara Falls. By about 1903, after a settlement with Hall's former employer, and while its patents were in force, the company was the only legal supplier of aluminum in the US.
"The Aluminum Company of America"—became the firm's new name in 1907. The acronym "Alcoa" was coined in 1910, given as a name to two of the locales where major corporate facilities were located (although one of these has since been changed), and in 1999 was adopted as the official corporate name.
In 1938, the Justice Department charged Alcoa with illegal monopolization, and demanded that the company be dissolved. The case of United States v. Alcoa was settled six years later.
Alcoa established an 8% stake in China's state-run aluminum industry and has formed a strategic alliance with Aluminium Corporation of China (Chalco), China's largest aluminum producer, at its Pingguo facility. Alcoa sold this stake on September 12, 2007.
Alcoa has also acquired two facilities in Russia, at Samara and Belaya Kalitva. Alcoa recently launched an offer to purchase the remaining 18% of the Belaya Kalitva plant from minority shareholders, giving it complete ownership in the facility.
In 2004, Alcoa's specialty chemicals division was sold to Rhône Group, who then changed the name to Almatis, Inc..
In 2005, Alcoa began construction in Iceland on Alcoa Fjarðaál, a state-of-the-art aluminum smelter and the company's first greenfield smelter in more than 20 years, albeit under heavy criticism by local and international NGOs related to a controversial dam project exclusively dedicated to supplying electricity to this smelter. Also, Alcoa has completed or is undergoing primary aluminum expansion projects in Brazil, Jamaica, and Pinjarra, Western Australia.
In 2006, Alcoa relocated its top executives from its headquarters in Pittsburgh to New York City. Although the company's principal office is located in New York City, the company's operational headquarters are still located at its Corporate Center in Pittsburgh...
Alcoa was named one of the top three most sustainable corporations in the world at the World Economic Forum in Davos, Switzerland...