Extraction of Metals What is Electrolysis Electrolysis is the process where an electric current is passed through a liquid that conducts electricity A liquid will only conduct electricity if it contains The electrodes are often made from graphite The liquid that conducts electricity is called the electrolyte The amount of electricity needed to produce a
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Get PriceExtraction of Metals Aluminium Resistance to Corrosion is the name given to the process where a metal reacts with oxygen in the air to form a metal oxide Corrosion is the reverse of the process used to extract the metal If the metal is iron corrosion is called rusting In general the more reactive a metal is the more quickly it Aluminium is a reactive metal
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Get PriceExtraction of Metals Extraction of The extraction of titanium uses the Kroll process Titanium ore is called rutile Rutile contains titanium dioxide TiO 2 Titanium dioxide is converted into titanium chloride TiCl Titanium is more reactive than carbon but it is not extracted by electrolysis because titanium chloride is covalent and therefore does not conduct electricity
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Get PriceBBC GCSE Bitesize Extraction of aluminium Extraction of aluminium Aluminium ore is called bauxite aluminium oxide from which aluminium can be extracted Chat Now Send Inquiry aluminium US aluminum Chemguide Instead it is extracted by electrolysis The ore is first converted into pure aluminium oxide by the Bayer Process
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Get Pricea rock containing a metal or a metal compound in high enough concentration to make it economic to extract the metal Metals are produced when metal oxides are reduced have their oxygen removed [info] The reduction method depends on the reactivity of the metal For example aluminium and other reactive metals are extracted by electrolysis
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Get PriceAl 3 3e > Al Anode 2O 2 > O 2 2e Whereas iron can be extracted from it s ore haematite by reduction with carbon and heat 2Fe 2 CO 3 3C > 2Fe 3CO 2 Therefore aluminium took longer to extract because electricity needed to be invented and a way of dissolving Al 2 O 3 before the extraction can occur
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Get PriceExtraction of Metals The Earth s crust contains metals and metal compounds such as gold copper iron oxide and aluminium oxide Useful metals are often chemically combined with other substances forming ores A metal ore is a rock that contains enough of the metal to make it worthwhile extracting They have to be extracted from their ores
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Get PriceBauxite is a sedimentary rock with a relatively high aluminium content It is the world s main source of aluminium and consists mostly of the aluminium minerals gibbsite Al OH 3 boehmite γ AlO OH and diaspore α AlO 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 4 and small
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Get PriceFor the GCSE you need to be able to consider and evaluate the social economic and environmental impacts of exploiting metal ores of using metals and of recycling metals But don t worry much of it is common sense and some general knowledge Several of the issues you learnt whilst studying the quarrying of limestone can be applied to mining 1
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