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USGS Minerals Information: Bauxite

Bauxites are typically classified according to their intended commercial application: abrasive, cement, chemical, metallurgical, refractory, etc. The bulk of world bauxite production (approximately 85%) is used as feed for the manufacture of alumina via a wet chemical caustic leach method commonly known as the Bayer process.

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chemical grade bauxite - resourceplus.co.za

chemical process of bauxite mining offers 306 chemical grade bauxite products. About 63% of these are refractory, 1% are bauxite ore. A wide variety of chemical grade bauxite options are available to you, such as block, brick, and lump.

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Chem: The extraction of Aluminium and Iron Flashcards | Quizlet

Used for the frames of many buildings due to its large strength, it can also be used on crane wires because iron is very strong under tension.

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Impurities - The Bauxite Index

There are many commercially important impurities in bauxites, however of these silica (which may be present in various forms) is the most important.

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Mining and Refining – Process - World Aluminium

Chemical additives (flocculants) are added to assist the sedimentation process. The bauxite residue sinks to the bottom of the settling tanks, then is transferred to the washing tanks, where it undergoes a series of washing stages to recover the caustic soda (which is reused in the digestion process).

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What is Bauxite's color? - science.answers.com

Bauxite's chemical formula is. Al 2 O 3 + SiO 2 + TiO 2 + Fe 2 O 3 . hope this what you where looking for!!!

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inorganic chemistry - What is chemical formula of Bauxite ...

Background:Chemical formula is short hand representation composition of a substance. There is difference between an ore and a mineral. An ore is an impure form of mineral, so it can't be given exact chemical formula.

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Bauxite - Wikipedia

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, boehmite and diaspore, mixed with the two iron oxides goethite and haematite, the aluminium clay mineral kaolinite and small amounts of anatase and ilmenite. In 1821 the French geologist Pierre Berthier discovered bauxite near the village of Les Baux in Provence, southern France.

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Information On Bauxites Chemical Formula - cz-eu.eu

Chemical formula is short hand . way of writing the formulae of the aluminium oxy-hydroxides that occur in bauxites. Get Price And Support Online; chemical device of bauxite - onlinedlwinternship. chemical formula bauxite ore - studymatrix. Chemical Device Of BauxiteBhopal Dancers and . . what is bauxites chemical formula – Grinding Mill China .

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Bauxite | Geoscience Australia

An additional 10% goes to non-metal uses in various forms of specialty alumina, while the remainder is used for non-metallurgical bauxite applications. In most commercial operations, alumina is extracted (refined) from bauxite by a wet chemical caustic leach process known as the Bayer process.

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Bauxite | Al2H2O4 - PubChem

A chemical formula is a way of expressing information about the proportions of atoms that constitute a particular chemical compound, using a single line of chemical element symbols and numbers. PubChem uses the Hill system whereby the number of carbon atoms in a molecule is indicated first, the number of hydrogen atoms second, and then the number of all other chemical elements in alphabetical order.

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THE ALUMINIUM STORY BAUXITE TO ALUMINA: THE BAYER PROCESS An ...

oxyhydroxide or monohydrate) and diaspore (the same chemical formula as boehmite). Bauxites containing mainly gibbsite are more amenable to processing by the Bayer Process (described in the next Section) and are termed low-temperature bauxites. Bauxites

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Gibbsite: The bauxite mineral gibbsite information and pictures

Gibbsite is one of the three component minerals of the economically important aluminum ore Bauxite.Gibbsite was first discovered in 1820 by Chester Dewey (1784-1867) of Williams College, Massachusetts.

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What's the chemical formula for bauxite? | Yahoo Answers

Bauxites are typically classified according to their intended commercial application: abrasive, cement, chemical, metallurgical, refractory, etc. The bulk of world bauxite production (approximately 85%) is used as feed for the manufacture of alumina via a wet chemical caustic leach method commonly known as the Bayer process.

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Guide to bauxite, alumina and aluminium - what you need to ...

Gibbsite has the chemical formula Al2O3.3H2O or Al(OH)3 and was named after George Gibbs (1776-1834) who was an American mineralogist. The three hydroxide bonds are relatively weak, resulting in the lowest refining temperature out of the three aluminium minerals (around 143-150 degrees Celsius, or 289-302 degrees Fahrenheit).

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Bauxite | ore | Britannica.com

Bauxite is formed by the thorough weathering of many different rocks. Clay minerals commonly represent intermediate stages, but some bauxites appear to be reworked chemical precipitates rather than simple alteration products. Bauxite may grade into laterite or clay, laterally or vertically.

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CHEMICAL-MINERАLOGICAL CHARACTERIZATION OF BAUXITES FROM ...

Gordana Ostojić, et al., Chemical-mineralogical characterization of bauxites from different deposits Contemporary Materials, V −1 (2014) Page 86 of 94 da 25 spectrophotometer, supported by WinLab 32 software package.

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what is bauxites chemical formula - Yahoo Answers Results

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Bauxite: The aluminum mineral bauxite information and pictures

Bauxite is not a mineral, but rather a group of aluminum oxides. The term is generally used to describe the economically important mixture of these minerals, which form a mass of the individually classified members of Gibbsite, Boehmite, and Diaspore.

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Laterite - Wikipedia

The average chemical composition of bauxite, by weight, is 45 to 60% Al 2 O 3 and 20 to 30% Fe 2 O 3. The remaining weight consists of silicas (quartz, chalcedony and kaolinite), carbonates (calcite, magnesite and dolomite), titanium dioxide and water. Bauxites of economical interest must be low in kaolinite.

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What Is Bauxite Used For? | Reference.com

What Is Bauxite Used For? Bauxite is used as the principal ore in aluminum. Bauxite can be beige, white, yellow, gray or pink, and has opaque transparency and a dull luster.

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Bauxite: Bauxite mineral information and data. - Mindat.org

Predominantly hydrated aluminium oxides with iron oxides, kaolinite and other impurities; almost always a residual soil rather than a sediment. Note that iron-rich sediments are covered elsewhere.

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information on bauxites chemical formula - newstonight.co.za

A chemical formula is a way of presenting information about the chemical proportions of atoms that constitute a particular chemical compound or molecule, using Get Price information on bauxites chemical

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What Is the Chemical Formula for Bauxite? | Reference.com

The basic chemical formula for bauxite is AlOH3. Bauxite is a heterogeneous material with a composition fundamentally consisting of aluminum hydroxide, but the compound may contain other substances, including iron oxide and silica. Bauxite frequently occurs in limestone and clay deposits.

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Bauxite | The Aluminum Association

Bauxite is primarily comprised of aluminum oxide compounds (alumina), silica, iron oxides and titanium dioxide. Approximately 70 percent of the world's bauxite production is refined through the Bayer chemical process into alumina. Alumina is then refined into pure aluminum metal through the Hall–Héroult electrolytic process. Mining bauxite

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