cost involved in the e traction of aluminium

Bauxite, Alumina and Aluminium

Australia's aluminium industry is a highly-integrated sector of mining, refining, smelting ... Approximately 17 600 Australians were employed in bauxite extraction and ... process, accounting for between 25–30 per cent of total operating costs.

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Aluminium - The Essential Chemical Industry

a) extraction of the ore, bauxite b) purification of bauxite to pure aluminium oxide (alumina) c) synthesis of cryolite, Na3AIF6 and aluminium fluoride, to be used...

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what are the social, economic and environmental impacts of the use ...

Dec 26, 2010 ... For instance, "high costs for aluminium extraction" is a bit vague but "high ... caused by extracting the metal (eg mining for the ore, spoil heaps,...

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Aluminium, - environment and society

Any extraction of raw materials and all production processes entail some degree of impact, on ... These are related to the metal's properties which benefit today's society: ..... Following the oil price shocks and energy cost increases of the 1970s...

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Hall–Héroult process

The Hall–Héroult process is the major industrial process for smelting aluminium. It involves ... Al+3 + 3 e → Al. Anode: ... Oxidation of the carbon anode incr...

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Preliminary Assessment Task 1 - Scribd

The location also determines the cost of metals, if the mining zone was highly ... the cost and energy expenditure involved in the extraction of aluminium from its...

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Advances and innovations in the Extraction oi - MIT

technologies for aluminum and magnesium extraction and assesses the .... very conservative owing to the very high capital costs associated with technology.

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ALUMINUM FROM CLAY

extraction process, the other an alkaline extraction with a solution consisting of a mixture ... tical, howkver, because of the high cost and low purity of the product.

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Electricity consumption in the production of aluminium | MrReid.org

Jul 15, 2011 ... Aluminium is usually produced by extracted from bauxite, an ore made ... of the world's entire electrical supply went to extraction of aluminium.

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The Economic Impact of Aluminum | The Aluminum Association

The number of core production jobs is increasing, including those related to foundry ... Recycling aluminum saves more than 90 percent of the energy costs...

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Energy Efficiency - Mining and Refining - World Aluminium

Aluminium is an “energy bank”; most of the original input can be recovered every time the ... higher temperature digestion, often associated with a higher fuel input. Investments in cost effective technology upgrades at existing facilities can ... which currently stands at around 1 tonne of CO2e per tonne of alumina produced.

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Aluminium Recycling

recycling because the recycling cost is much less than the cost of ... One tonne of recycled aluminium cans will make one tonne of new ... Through this extraction.

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Electric vehicle traction motors without rare earth magnets

However these have focused on light rare earth oxide extraction (for example, ... Materials cost in a 30 kW traction motor for a motor with rare earth magnets .... ways related to reluctance motors which are addressed later in this section). .... this is because of the high cost of copper, when compared to aluminium, and due to.....

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aluminum processing | Britannica.com

History. Early use and extraction. Before 5000 bce people in Mesopotamia were making fine pottery from a clay that consisted largely of an aluminum compound...

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Aluminium - Fact Sheets - Australian Mines Atlas

Bauxite is the ore most commonly mined for aluminium in which aluminium occurs ... Extraction of aluminium metal takes place in three main stages - mining of...

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How aluminum is made - material, manufacture, making, used ...

Pure, metallic aluminum can be economically produced only from aluminum ... relatively small amounts of other chemicals may be used in the extraction ... The cost of electricity represents about one-third of the cost of smelting aluminum.

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BBC - GCSE Bitesize: Extraction of aluminium

The use of cryolite reduces some of the energy costs involved in extracting aluminium. Diagram showing cell for aluminium extraction. The diagram shows an...

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aluminium (US: aluminum) - Chemguide

This page starts by looking at the extraction of aluminium from its ore, bauxite, ... The ore is first converted into pure aluminium oxide by the Bayer Process, and this is then .... and environmental issues involved with the extraction of aluminium. ... The high cost of the process because of the huge amounts of electricity it uses.

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4 - Year 11

Compare the cost and expenditure involved in the extraction of aluminium from its ore ... Compared with the Extraction of aluminium from some of its ores, the...

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