Alcoa -- Alumina

We provide smelter grade alumina to aluminum manufacturers ... by filtering bauxite residue created during the refining process so that more residue can be ...

Aluminum Smelting | HowStuffWorks

Aluminum Smelting - Aluminum smelting ... or sodium aluminum fluoride (Na 3 AlF 6). Until 1987, ... Hall, however, received a patent for the process in 1889, ...

Alumina Limited

Rehabilitation is one of the most important parts of the mining process. ... (sodium aluminium fluoride) ... The process of aluminium smelting requires significant ...

Aluminum Manufacturing - IFC

The production of aluminum begins with the mining and beneficiation of bauxite. ... dissolved in a molten bath of fluoride ... process for secondary aluminum ...

12.1 Primary Aluminum Production

Primary aluminum production begins with the mining ... Crystalline A l2O 3 is used in the Hall-Heroult process to produce aluminum metal ... aluminum fluoride, ...

Aluminum processing | Britannica

Mining. By far the greatest ... aluminum processing: Bayer process Principal ... Because some fluoride from the cryolite electrolyte is lost in the process, aluminum ...

aluminum fluoride | AlF - PubChem

aluminum fluoride | AlF or ... Aluminum fluoride; Aluminum ... Exposures have been higher in potrooms of plants using the Soderberg process than in those ...

How aluminium is produced

Full aluminium production process - bauxite mining, alumina production, primary aluminium production, aluminium alloys production, aluminium recycling

Fluorite - Wikipedia

The purest grades of fluorite are a source of fluoride for ... Mining still takes place ... releasing quanta of visible light in the process. In fluorite, ...

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