Cryolite
Cryolite The cryolite mine Ivigtut, Greenland, summer 1940 Cryolite (Na 3 AlF 6 , sodium aluminium fluoride ... ores was overcome by the use of cryolite as a flux in order to extract the aluminium metal. Now, as natural cryolite is too rare to be used ...
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Cryolite   (translated from French)
Cryolite cryolite, or cryolite, is one minéral composed of fluorure double ... AlF 6 also noted 3NaF, AlF 3 . Cryolite is mainly used for the production of ... also, to face the needs for industry, cryolite is produced artificially. Synopsis Discovered Mine ...
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Cryolite   (translated from Chinese)
Cryolite Cryolite（Cryolite) One kindMineralSix fluorine AluminumAcid sodium , white ...
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Image:Cryolite mine at Ivgtut, Greenland.jpg
Image:Cryolite mine at Ivgtut, Greenland.jpg Image File ... high resolution version (811x408, 38 KB) The cryolite mine at Ivgtut , Greenland. Photograph taken summer ...
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Hall-Héroult process
... in a carbon-lined bath of molten cryolite, Na 3 AlF 6 . Aluminium fluoride , AlF ... to reduce the melting point of the cryolite. The mixture is electrolyzed, and liquid aluminium ... aluminium product is denser than the molten cryolite and sinks to the bottom of the ... are covered with a crust of solid cryolite which acts as thermal insulation. Electrical resistance ... bath provides sufficient heat to keep the cryolite molten. The need of electrical power ...
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Aluminium
... the aluminium oxide is dissolved in molten cryolite and then reduced to the pure metal ... cells is around 950 to 980 °C. Cryolite was originally found as a mineral on ... but has been replaced by a synthetic cryolite. Cryolite is a mixture of aluminium, sodium, and ...
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Summary of mineral   (translated from Japanese)
... halogen element . Rock salt(Halite) fluorite (Fluorite) Cryolite(Cryolite) Cerargyrite(Cerargyrite) Carbonate mineral ( Carbonates ) Carbonate mineralWith ...
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Paul Héroult   (translated from French)
... temperature, it has the idea to add cryolite to lower the temperature. Then, it entrepend ... breaking up alumina, in dissolution in a cryolite bath in fusion, by the electrical current ...
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Ivittuut
... founded as a mining town. In 1806, cryolite was found in the area, and mining ... was originally established to protect the important cryolite mine of Ivittuut. By now, the town ...
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Alum
... or alum-stone, alum schist, bauxite and cryolite. Alum from alunite In order to obtain ... potassium sulfate and allowed to crystallize. When cryolite is used for the preparation of alum ...
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