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  2. Hall–Héroult process - Wikipedia

    en.wikipedia.org/wiki/Hall–Héroult_process

    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.

  3. Aluminium smelting - Wikipedia

    en.wikipedia.org/wiki/Aluminium_smelting

    The Hall-Héroult electrolysis process is the major production route for primary aluminium. An electrolytic cell is made of a steel shell with a series of insulating linings of refractory materials. The cell consists of a brick-lined outer steel shell as a container and support. Inside the shell, cathode blocks are cemented together by ramming ...

  4. Electric Smelting and Aluminum Company - Wikipedia

    en.wikipedia.org/wiki/Electric_Smelting_and...

    The Cowles process was the immediate predecessor to the Hall-Héroult process—today in nearly universal use more than a century after it was discovered by Charles Martin Hall and Paul Héroult and adapted by others including Carl Josef Bayer. Because of the patent landscape, the Cowles companies found themselves in court.

  5. Prebaked consumable carbon anode - Wikipedia

    en.wikipedia.org/wiki/Prebaked_consumable_carbon...

    Efforts to find industrial use for spent anodes have led to proposals to use the anodes as a cost-effective alternative for coke in small-scale foundries that lack a ready supply of coke, and cannot afford modern electric furnaces.

  6. Electrometallurgy - Wikipedia

    en.wikipedia.org/wiki/Electrometallurgy

    The electrolysis can be done on a molten metal oxide (smelt electrolysis) which is used for example to produce aluminium from aluminium oxide via the Hall-Hérault process. Electrolysis can be used as a final refining stage in pyrometallurgical metal production (electrorefining) and it is also used for reduction of a metal from an aqueous metal ...

  7. History of aluminium - Wikipedia

    en.wikipedia.org/wiki/History_of_aluminium

    [h] Hall co-founded the Pittsburgh Reduction Company in 1888 and initiated production of aluminium. [88] Hall's patent was granted in 1889. [74] [i] In 1889, Hall's production began to use the principle of internal heating. [j] By September 1889, Hall's production grew to 385 pounds (175 kilograms) at a cost of $0.65 per pound. [91]

  8. File:Hall-Heroult cell schematic.svg - Wikipedia

    en.wikipedia.org/wiki/File:Hall-Heroult_cell...

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  9. Charles Martin Hall - Wikipedia

    en.wikipedia.org/wiki/Charles_Martin_Hall

    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.