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blast furnace 2Opt

blast furnace 2Opt - 100s of free ppts from wwwpoint.com...

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By Chan, Sam and Elly 100’s of free ppt’s from www.pptpoint.com library
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What is a Blast Furnace? The purpose of a blast furnace  is to reduce and convert iron  oxides into liquid iron called "hot  metal".  The blast furnace is a huge,  steel stack lined with refractory  brick. Iron ore, coke and limestone are  put into the top, and preheated  air is blown into the bottom.
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Why does Iron have to be extracted in a Blast Furnace??? Iron can be extracted by the blast furnace because it can be  displaced by carbon. This is more efficient method than electrolysis because it is  more cost effective
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Three substances are needed to enable to extraction of iron from its ore. The  combined mixture is called the  charge : Iron ore, haematite - often contains sand with iron oxide, Fe 2 O 3 .
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