• How is bauxite (aluminium ore) extracted? Yahoo Answers

    Jun 13, 2009· Aluminum exists as a cation in the ore, obtaining its needed electrons from its associated anions (typically oxygen or hydroxide). During extraction, electrons are provided to the ore that convert the Al from the Al+3 cation to native Al.

  • Chemistry Stoichiometry Question? Yahoo AnswersMar 10, 2009what is aluminum made from? Yahoo AnswersJul 05, 2008why is it impossible to extract aluminiumMar 25, 2008how long has bauxite (aluminum ore) beenDec 09, 2007See more results
  • How do you extract aliminium from its ore? Yahoo Answers

    Dec 05, 2007· Electrolysis. Bauxite ore is purified to give pure aluminum oxide. This oxide is mixed with cryolite another mineral which is Na3AlF6 (sodium hexafluoroaluminate). The mixture is melted.

  • What method is used to extract aluminium from its oreFeb 11, 2011How is aluminium extracted from its oreNov 04, 2008Where is (BAUXITE) aluminium ORE minedSep 02, 2008See more results
  • Extraction Process of Aluminium from Bauxite Ore

    CompositionNomenclatureProductionExampleOperationMechanismTechnologyAdvantagesAluminum is the most abundant metal in the earths crust and is a constituent of many minerals. However, the material which is highest in aluminum and most free from objectionable impurities is bauxite which, therefore, is practically the only source of the metal under present processes.See more on 911metallurgist
  • Which metal is extracted from the mineral bauxite? Yahoo

    Mar 16, 2008· For the best answers, search on this site https://shorturl.im/axuEd Bauxite, important ore of aluminum, consisting of aluminum oxide of various degrees of

  • How is bauxite extracted? Answers

    Usually, bauxite ore is heated in a pressure vessel along with a sodium hydroxide solution at a temperature of 150 to 200 °C. At these temperatures, the aluminium is dissolved as an aluminate (the.

  • what elements are in bauxite? Yahoo Answers

    Mar 10, 2008· Bauxite is the most important aluminium ore. It consists largely of the minerals gibbsite Al(OH)3, boehmite γ-AlO(OH), and diaspore α-AlO(OH), together with the iron oxides goethite and hematite, the clay mineral kaolinite and small amounts of anatase TiO2.

  • The Electrolysis of Bauxite S-cool, the revision website

    How to extract aluminium from its ore The method The bauxite (red-brown solid) aluminium oxide mixed with impurities is extracted from the earth. The extracted aluminium oxide is then treated with alkali, to remove the impurities. This results in a white solid called aluminium oxide or alumina. The alumina is then transported to huge tanks.

  • Mining and Refining Process World Aluminium

    Unlike the base metal ores, bauxite does not require complex processing because most of the bauxite mined is of an acceptable grade. Ore quality can be improved by relatively simple and inexpensive processes for removing clay, known as “beneficiation”, which include washing, wet screening and mechanical or manual sorting.

  • How is Aluminum made? Yahoo Answers

    May 18, 2008· Aluminium is a strongly reactive metal that forms a high-energy chemical bond with oxygen. Compared to most other metals, it is difficult to extract from ore, such as bauxite, due to the energy required to reduce aluminium oxide (Al2O3).

  • How do you extract aluminum out of bauxite? Answers

    Aluminum is produced from aluminum ore; specifically bauxite (aluminum oxide). Mined from bauxite, aluminum is a silver/grey metal, an element in its own right

  • How do you extract aliminium from its ore? Yahoo Answers

    Dec 06, 2007· 1) The ore, bauxite, contains aluminium oxide. The first step, after mining, is to use chemical separation to recover the aluminium oxide from the rest of the rock in the ore. 2) The aluminium oxide is then melted in an electritic cell. Electricity is used to breakdown the substance. The aluminium ions are reduced during electrolysis.

  • Where is (BAUXITE) aluminium ORE mined Yahoo Answers UK

    Sep 03, 2008· Increased aluminium recycling, which has the advantage of lowering the energy costs of production, will help extend bauxite reserves. manufacture. Bauxite is strip mined (surface mining) because it is found at the surface, with little or no overburden. Approximately 95% of the world's bauxite production is processed into aluminium.

  • What’s bauxite? Yahoo Answers

    Jan 11, 2008· Bauxite is the raw material from which Aluminium is made and is found in large deposits around the world. One large deposit is in the Gulf of Carpenteria, Australia and in Canada. Once mined it goes to a processing plant and is formed into Alumina then sent to a refinery which uses large amounts of electricity to extract the Aluminium.

  • How is aluminium extracted from its ore Yahoo Answers UK

    Nov 05, 2008· Al2O3 is extracted from bauxite. however, Al is must be formed from molten Al2O3, but Al2O3 has a very high melting point, therefore mixed with NaAlF6, which melts at 1000 degree celcius. from there onwards electrolysis is carried out in a electrolysis cell. this electrolysis step is known as Hall-Herout process and takes place in graphite lined furnace (cathode) with graphite rods (anodes).

  • What method is used to extract aluminium from its ore

    Feb 12, 2011· Instead, it is extracted by electrolysis. The ore is first converted into pure aluminium oxide by the Bayer Process, and this is then electrolyzed in solution in molten cryolite another aluminium compound. The aluminium oxide has too high a melting point to electrolyze on its own. Bauxite is the mineral ore from which aluminium is extracted.

  • Which metal is extracted from the mineral bauxite? Yahoo

    Mar 16, 2008· For the best answers, search on this site https://shorturl.im/axuEd. Bauxite, important ore of aluminum, consisting of aluminum oxide of various degrees of hydration, usually mixed with impurities, particularly iron oxides and hydroxides. Among the specific aluminum-bearing minerals in bauxite are gibbsite, Al(OH)3, and diaspore, HAlO2.

  • what is aluminum made from? Yahoo Answers

    Jul 06, 2008· Aluminium is a pure element, so it's not really "made" from anything. It's extracted from a mineral ore called Bauxite, which is a type of rock that contains aluminium compounds. The biggest reserves of Bauxite are in Australia, China and Brazil, but it's found in many countries.

  • benefits of bauxite mining and aluminum Yahoo Answers

    Feb 19, 2009· You need to dig up an awful lot of bauxite to produce aluminium, as though aluminium is the most common metallic element in the Earth's crust bauxite is not a very pure, concentrated ore. Get answers by asking now. Ask question + 100. Join Yahoo Answers and get 100 points today.

  • Bauxite ore contains aluminum oxide Yahoo Answers

    May 09, 2007· Bauxite ore contains aluminum oxide, which is decomposed using electricity to produce aluminum metal and oxygen. What mass of aluminum metal can be produced from 125 g of aluminum oxide? I'm really confused and I need help. Thanks.

  • what elements are in bauxite? Yahoo Answers

    Mar 10, 2008· Bauxite is the most important aluminium ore. It consists largely of the minerals gibbsite Al(OH)3, boehmite γ-AlO(OH), and diaspore α-AlO(OH), together with the iron oxides goethite and hematite, the clay mineral kaolinite and small amounts of anatase TiO2.

  • How is Aluminum made? Yahoo Answers

    May 18, 2008· Aluminium is a strongly reactive metal that forms a high-energy chemical bond with oxygen. Compared to most other metals, it is difficult to extract from ore, such as bauxite, due to the energy required to reduce aluminium oxide (Al2O3).

  • What is aluminium made from? And how it it Yahoo Answers

    Apr 06, 2008· 6 Answers. Relevance. David M. 1 decade ago. Favourite answer. It is naturally found in the form of bauxite, an ore containing aluminum oxide, or alumina. You basically need to refine it to extract the aluminum. Check the source below if you want to know more.

  • what is bayers process? Yahoo Answers

    Feb 22, 2008· the most important ore of aluminium, contains only 30-54% alumina, Al2O3, the rest being a mixture of silica, various iron oxides, and titanium dioxide[1]. The alumina must be purified before it can be refined to aluminium metal. In the Bayer process, bauxite is washed with a hot solution of sodium hydroxide, NaOH, at 175°C (called digestion).

  • Help with writing net chemical equations? Yahoo Answers

    Jan 09, 2013· The extraction of aluminum metal from the aluminum hydroxide in bauxite ore by the Hall-Héroult process is one of the most remarkable success stories of late 19th century practical chemistry, turning aluminum from a rare and precious metal into the cheap commodity it is today. In the first step, aluminum hydroxide reacts to form alumina and water: 2Al(OH)3 (s) ----> Al2O3 (s) + 3H2O

  • Help with writing net chemical equations? Yahoo Answers

    Jan 09, 2013· The extraction of aluminum metal from the aluminum hydroxide in bauxite ore by the Hall-Héroult process is one of the most remarkable success stories of late 19th century practical chemistry, turning aluminum from a rare and precious metal into the cheap commodity it is today. In the first step, aluminum hydroxide reacts to form alumina and water: 2Al(OH)3 (s) ----> Al2O3 (s) + 3H2O

  • Bauxite ore contains aluminum oxide Yahoo Answers

    May 09, 2007· Bauxite ore contains aluminum oxide, which is decomposed using electricity to produce aluminum metal and oxygen. What mass of aluminum metal can be produced from 125 g of aluminum oxide? I'm really confused and I need help. Thanks.

  • Where is bauxite ore mined? Yahoo Answers

    Jul 17, 2008· Another major source of Bauxite in Australia is the Comalco mine at Weipa on the Cape York Peninsula. The Bauxite is shipped to Gladstone in Queensland where it is turned into alumina then shipped to Bluff in the South Island of New Zealand where it is smelted into Aluminium

  • How is aluminium produced from its raw Yahoo Answers

    May 24, 2011· Aluminum starts as an oxide ore called bauxite. Aluminum is more chemically reactive than iron and the smelting process involves carbon arcs. The ore is melted in a carbon lined trough using carbon electrodes and thousands of volts of electricity.

  • benefits of bauxite mining and aluminum Yahoo Answers

    Feb 19, 2009· You need to dig up an awful lot of bauxite to produce aluminium, as though aluminium is the most common metallic element in the Earth's crust bauxite is not a very pure, concentrated ore. Get answers by asking now. Ask question + 100. Join Yahoo Answers and get 100 points today.

  • What is aluminium made from? And how it it Yahoo Answers

    Apr 06, 2008· 6 Answers. Relevance. David M. 1 decade ago. Favourite answer. It is naturally found in the form of bauxite, an ore containing aluminum oxide, or alumina. You basically need to refine it to extract the aluminum. Check the source below if you want to know more.

  • what elements are in bauxite? Yahoo Answers

    Mar 10, 2008· Bauxite is the most important aluminium ore. It consists largely of the minerals gibbsite Al(OH)3, boehmite γ-AlO(OH), and diaspore α-AlO(OH), together with the iron oxides goethite and hematite, the clay mineral kaolinite and small amounts of anatase TiO2.

  • what is bayers process? Yahoo Answers

    Feb 22, 2008· the most important ore of aluminium, contains only 30-54% alumina, Al2O3, the rest being a mixture of silica, various iron oxides, and titanium dioxide[1]. The alumina must be purified before it can be refined to aluminium metal. In the Bayer process, bauxite is washed with a hot solution of sodium hydroxide, NaOH, at 175°C (called digestion).

  • How is Aluminum made? Yahoo Answers

    May 18, 2008· Aluminium is a strongly reactive metal that forms a high-energy chemical bond with oxygen. Compared to most other metals, it is difficult to extract from ore, such as bauxite, due to the energy required to reduce aluminium oxide (Al2O3).

  • What are the properties of aluminium? Yahoo Answers

    Dec 12, 2017· The chief ore of aluminium is bauxite. Aluminium metal is so chemically reactive that native specimens are rare and limited to extreme reducing environments. Instead, it is found combined in over 270 different minerals.[5] Aluminium is remarkable for its low density and its ability to resist corrosion through the phenomenon of passivation.

  • Bauxite is an ore that contains the Yahoo Answers

    Apr 03, 2010· Bauxite is an ore that contains the element aluminum. If you obtained 108 grams of aluminum from an ore sample that initially weighed 204 grams, what is the mass percent of aluminum in this bauxite ore? Please respond with a valid answer and response so that I may understand as well.

  • what are the minerals found in iron,copper Yahoo Answers

    Feb 01, 2008· Bauxite is a naturally occurring form of aluminum ore. It consists of 45-60% aluminum oxide, 12-30% water, and various other impurities. Bauxite is typically mined in open-pits and either processed into alumina near the mining operation, or shipped to smelting markets around the world for processing. Less than 1% of aluminum in the U.S. comes

  • Why do we recycle aluminum cans? Yahoo Answers

    Aug 18, 2007· The bad thing about mining bauxite, just like any other ore, is that it is in the ground. Since bauxite is mined in the rainforest, there are tons of trees growing on top. In order to get to the bauxite, the trees have to be clear-cut and are usually burned since there main opperation is to mine the ore, not harvest lumber.

  • method to extract metal from iron ore? Yahoo Answers

    Aug 03, 2011· The method used to extract metals from the ore in which they are found depends on their reactivity. For example, reactive metals such as aluminium are extracted by electrolysis, while a less-reactive metal such as iron may be extracted by reduction with carbon or carbon monoxide.