Bauxite Aluminium Encyclopedia
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Bauxite Industry |
Bauxite Industry. BIBLIOGRAPHY. Bauxite is the only commercially viable ore used as a source material for primary aluminum production. After iron, aluminum is the world ' s second most used metal, having a wide variety of appliions in transportation and packaging. Most of the world ' s bauxite reserves and production are found in a wide belt around the equator, with Australia, Brazil ...
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Bauxite Mining
· Bauxite is the principal ore of aluminum and is a mixture of aluminum oxides and hydroxides that formed from intense chemical weathering of a soil in tropical environments. Soils formed under these conditions are termed laterites. In Arkansas, the aluminumenriched soils are the result of the decomposition and lateritic weathering of nepheline syenite, an intrusive igneous rock. During the ...
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Bauxite
Bauxite is a naturally occurring, heterogeneous material composed primarily of one or more aluminium hydroxide minerals, plus various mixtures of silica, iron oxide, titania, aluminosilie, and other impurities in minor or trace amounts.. The principal aluminium hydroxide minerals found in varying proportions with bauxites are gibbsite and the polymorphs boehmite and diaspore.
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aluminum
The chemical element aluminum is the most common metal in Earth's crust. It is also more widely used than any other metal except iron. Scientists use symbols to stand for the chemical elements. Al is the symbol for aluminum, which is also spelled aluminium.
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Aluminium
Pure aluminium is made from bauxite, a kind of rock that has aluminium oxide and many impurities. The bauxite is crushed and reacted with sodium hydroxide. The aluminium oxide dissolves. Then the aluminium oxide is dissolved in liquid cryolite, a rare mineral. Cryolite is normally produced artificially though. The aluminium oxide is electrolyzed to make aluminium and oxygen. The largest ...
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Aluminium encyclopaedia
The first patent relates to the precipitation of hydrated aluminium oxide from a solution of bauxite in concentrated caustic soda by adding aluminium hydrate while continually agitating the liquid. The second describes a method for digesting the bauxite more quickly by allowing the lye to act on the powdered bauxite at a pressure of three to four atmospheres at a temperature of about 160172 ...
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Gibbsite | mineral
Gibbsite, the mineral aluminum hydroxide [Al(OH) 3] an important constituent of bauxite () deposits, particularly those in the Western Hemisphere, where it occurs as white, glassy crystals, earthy masses, or significant deposits it is of secondary origin, but smallscale hydrothermal sources are known. Under extreme weathering conditions, it may develop from any aluminous ...
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bauxite
Bauxite — ou minerai d aluminium Bauxite (Hérault) avec des pisolites . Wikipédia en Français ...
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Bauxite fibrosis
Bauxite is a sedimentary rock with a relatively high aluminium content. It is the world's main source of aluminium. Bauxite consists mostly of the aluminium minerals gibbsite (Al(OH) 3), boehmite (γAlO(OH)) and diaspore (αAlO(OH)), mixed with the two iron oxides goethite (FeO(OH)) and haematite (Fe 2 O 3), the aluminium clay mineral kaolinite (Al 2 Si 2 O 5 (OH)) and small amounts of ...
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The New International Encyclopædia/Bauxite
BAUXITE, bōks′īt (from Baux; see below). The most important ore of aluminum, a hydrate having the composition Al 2 O 3 3H 2 O, though most occurrences contain also some silica, iron oxide, and titanium. The ore occurs in rounded grains, in pisolitic or claylike masses. The grains usually show a concentric structure and a variable color from white to yellow, brown, or red. It is named from ...
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bauxite
Bauxite — ou minerai d aluminium Bauxite (Hérault) avec des pisolites . Wikipédia en Français. Bauxite ...
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Name an important ore of aluminium.
Aluminium Wikipedia, the free encyclopedia. The chief ore of aluminium is bauxite. Aluminium .... Bauxite, a major aluminium ore. .... Aluminium forms one stable oxide, known by its mineral name corundum. More details » Get Price. List of Ores of Metals Aluminum Ores in India Iron ... Win Entrance . Elements Chemical Formulas, Iron Ores in India, Mordant Dyes, General ... about .
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bauxite wikipedia the free encyclopedia
Bauxite Wikipedia, the free encyclopedia Bauxite is an aluminium ore and is the main source of aluminium This form of rock consists mostly of the minerals . Mining in Greece Overview MBendi. Greece is an important producer of bauxite and also produces nickel, lead and zinc Greece will soon become a gold producer, with the development of ..... JAMAICA . In the late 1990s, the .
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Bauxite
BAUXITE, a substance which has been considered to be a mineral species, having the composition Al 2 0(OH) 4 (corresponding with alumina, water %), and thus to be distinct from the crystallized aluminium hydroxides, diaspore (A10(OH)) and gibbsite (= hydrargillite, Al(OH) 3). It was first described by P. Berthier in 1821 as "alumine hydratee de Beaux," and was named beauxite by P. A ...
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Chemische Verbindungen von Aluminium –
Die moderne Klassifikation von Aluminiumverbindungen aus der Encyclopedia of Aluminium [4] ist unten dargestellt. Klassifizierung von Aluminiumverbindungen [4] Aluminium in der Natur. Aluminium ist am häufigsten (mehr 8 % nach Masse) natürliches Metallelement, sowie das dritte natürliche Element unter allen chemischen Elementen (nach Sauerstoff und Silizium). Aufgrund der hohen chemische ...
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