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Bauxite is an aluminium ore.
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What is bauxite's mineral group?
Bauxite's chemical formula ends with Oxygen, (Al2O32H2O) making it an oxide.
Is bauxite a substance?
Bauxite is a sedimentary rock that is the main ore of aluminum. Bauxite varies in composition, as does any rock, but the main components are minerals of aluminum oxide and aluminum hydroxide. Bauxite may also contain amounts of iron, clay, silt and silica. Bauxite is the result of the leaching of minerals from tropical soils leaving a hardened clay-like material that is high in the above minerals, which resist leaching. In addition to being the primary source of aluminum, some bauxite is also used in the manufacture of abrasives.
What is the name given to a rock like bauxite which is wort mining because it contains a valuable metal?
Bauxite is an ore of aluminum. Magnetite is an oreof iron. And so on...
How is aluminum extracted from the earth and processed?
Aluminum ore is called Bauxite, which is a heterogenous mixture of aluminum hydroxide minerals (mainly gibbsite, with some boehmsite and diaspore) bound in a matrix of clay, silica, silt and other metallic hydroxides. It is usually found near the Earth's surface, and so strip-mining and pit mines are the typical methods of extraction. The production of metallic aluminum requires two steps. First the Bauxite ore has to be converted to a mineral called Alumina (aluminum oxide Al2O3), by a method called the Bayer process. In this process, the Bauxite ore is treated with hot sodium hydroxide solution (2NaOH + 3H2O), which dissolves only the Alumina from the Bauxite. The process is completed by cooling the "Bayer liquor", drying the residue, and then reheating (calcining) the residue to obtain nearly pure Alumina. Aluminum metal is obtained by electrolysis of the Alumina using the Hall process (Hall-Héroult process). The Alumina is dissolved in liquid Cryolite (Na3ALF6) at a temperature of over 1000oC, and then a low-voltage high-current electrical field is used to separate the aluminum from the oxygen and Crylolite. The voltage in a Hall cell is only 3-5 volts, but the current is typically 200,000-300,000 amperes. Because the liquid pure aluminum metal is denser than the Cryolite, the metal collects at the bottom of the cell where it can be periodically drained out and cooled. In the early 20th century, over half of the world's Bauxite was mined in Arkansas. Now the USA produces virtually no domestic Bauxite and is an importer of the ore. Nearly 50% of the Alumina used in the US in 2008 was imported from Australia. Other major sources of Bauxite and Alumina are Guinea, Jamaica, Brazil, China and India. The production of aluminum metal uses a tremendous amount of energy. The recycling of existing aluminum products is the most cost-effective way of obtaining aluminum metal for future use, being far less expensive than processing Bauxite and Alumina.
Who uses a tripod and a darkroom starting with p?
A photographer uses a tripod, camera, and (some photographers) use a darkroom.
What are some strange uses for bauxite?
main use is making aluminum metal
Is bauxite precious?
No. Bauxite has some value as aluminum ore but is not precious.
What is bauxite's uses?
Bauxite is used in cement, chemicals, face makeup, soda cans, dishwashers, siding for houses, and other aluminum products. It is recycled so that it can be used over again.
What is the name of the most common aluminium ore?
Bauxite . Chemically it is Aluminium oxide (Al2O3)
What are some of Guyana's natural resources?
some are gold ,diamond ,rice and bauxite
Does bauxite have magnetism?
No, bauxite does not have magnatism
What are some of Guyana's REsources?
Sugar, rice, gold, diamond and bauxite are some resources.
What rocks have bauxite?
Bauxite is a sedimentairy rock.
Is bauxite cleavage or fracture?
Bauxite is fracture.
write the formula of bauxite?
Al2H2O4 Bauxite | Al2H2O4 - PubChem.
Is bauxite found in Europe?
Yes, it is found in some parts of Europe.
What Caribbean country produces bauxite?
Jamaica mines bauxite. There are several countries in South America who mine bauxite.
