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The Hall–Héroult process is the major industrial process for smelting aluminium. It involves dissolving aluminium oxide (alumina) (obtained most often from bauxite , aluminium 's chief ore, through the Bayer process ) in molten cryolite and electrolyzing the molten salt bath, typically in a purpose-built cell.
Bust of Heroult in Thury-Harcourt. Paul (Louis-Toussaint) Héroult (10 April 1863 – 9 May 1914) was a French scientist. He was one of the inventors of the Hall-Héroult process for smelting aluminium, and developed the first successful commercial electric arc furnace. [1] He lived in Thury-Harcourt, Normandy.
The Bayer process is the principal industrial means of refining bauxite to produce alumina (aluminium oxide) and was developed by Carl Josef Bayer.Bauxite, the most important ore of aluminium, contains only 30–60% aluminium oxide (Al 2 O 3), the rest being a mixture of silica, various iron oxides, and titanium dioxide. [1]
Charles Martin Hall (December 6, 1863 – December 27, 1914) was an American inventor, businessman, and chemist. He is best known for his invention in 1886 of an inexpensive method for producing aluminum , which became the first metal to attain widespread use since the prehistoric discovery of iron.
Image source: Getty Images. 1. Lockheed Martin. After its stock price reached an all-time high earlier this year, Lockheed Martin and its defense contractor peers have sold off considerably over ...
Jimmy Butler of the Miami Heat is reportedly ready for a trade to a contending team, though he has not formally asked for a trade. (Photo by Rich Storry/Getty Images) (Rich Storry via Getty Images)
Memorial services are set to take place this week for a sophomore Otterbein University wrestler who died from injuries he suffered in a car crash earlier this month. Joshua Taylor died on Thursday ...
Christian worldview (also called biblical worldview) refers to the framework of ideas and beliefs through which a Christian individual, group or culture interprets the world and interacts with it. Various denominations of Christianity have differing worldviews on some issues based on biblical interpretation, but many thematic elements are ...