In contrast with 2012, new Chinese smelters have also joined the group of lower cost smelters, before all in the Northwestern province, Xinjiang, which has low electricity costs (due to low coal prices) and new low cost technology (consuming less than 13,000 KWh per produced tonne of aluminium).

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Compare the cost and expenditure involved in the extraction of aluminium from its ore and the recycling of aluminium. Compared with the Extraction of aluminium from some of its ores, the recycling of aluminium is much more cost effective and energy efficient.

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mobile phones. Selective extraction of dissolved metals from solution is very difficult and demanding process [19]. Experimental Electronic waste is defined as a mixture of various metals, particularly copper, aluminum and steel, attached to different types of plastics and ceramics.

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Analyse information to compare the cost and energy expenditure involved in the extraction of aluminium from its ore and the recycling of aluminium. Aluminium is the third most abundant metal in the Earth's crust, but is more expensive to extract it from its ore than iron.

aluminum sheet cost has also been considered, giving a range of values between /kg. The starting values for both materials are considered to be in agreement with the generally known fact that the cost to produce primary aluminum is between 2 to 5 times more expensive than the cost to produce primary steel [4, 5].

The extraction of aluminium from bauxite basically involves two main steps : 1) Concentration of bauxite by leaching. 2) Electrolytic reduction of purified Al 2 O 3 .

Compare the cost and expenditure involved in the extraction of aluminium from its ore and the recycling of aluminium. Compared with the Extraction of aluminium from some of its ores, the recycling of aluminium is much more cost effective and energy efficient.

Oct 05, 2013· ALUMINIUM This page starts by looking at the extraction of aluminium from its ore, bauxite, including some economic and environmental issues. It finishes by looking at some uses of aluminium. It finishes by looking at some uses of aluminium.

Extraction of aluminium Aluminium is the most abundant metal on Earth. Despite this, it is expensive, largely because of the amount of electricity used up in the extraction process.

1. Introduction to the extraction of metals. What methods can be used in extracting metals from mineral ores? The Earth's crust contains many different rocks.. Rocks are a mixture of minerals and from some we can make useful substances.. A mineral can be a solid metallic or non–metallic element or a compound found naturally in the Earth's crust.

The cost of production of aluminium is high because the extraction Analyse information to compare the cost and energy expenditure involved in the extraction Contact Supplier Environmental Impact Economics Metal Extraction .

• Recycling aluminium is viable because expensive electricity is needed to produce the new aluminium by electrolysis • There are costs involved with recycling: collection of scrap and separation of the pure

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Feb 24, 2010· Best Answer: electricity. Al is smelted via an electrolytic process.

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cost and energy expenditure involved in the extraction of aluminium from its ore and recycling of aluminium (29 May 2012 ) Gulin supply Mining and construction equipment for mineral handling. The crushing, screening, washing, grinding equipment in stationary, portable, tracked type is available.