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Jan 26 2014 highergrade iron ore is more efficient for steel makers and contains fewer additives which cuts down on emissions smaller iron ore exporters have
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Get PriceWorld exports of iron ore coal and crude oil in 2015 in million tonnes mt5 iron ore steel is an alloy consisting mostly of iron and less than 2 carbon iron ore is therefore essential for the production of steel which in turn is essential in maintaining a strong industrial base 98 of mined iron ore
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Get PriceIron sources blast furnace flue dust clay mill scale ore washings shale alumina sources alumina ore refuse clay copper slag fly ash shale the us industry average portland cement as found by this study is 922 clinker by weight table 1 describes the cements composition by specific material resources table 1
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Get PriceFrom the data in table 1 and fig 3 it is apparent that the production of hot metal or pig iron is the most energy intensive process for steel production at roughly 135 10 9 joules per ton 1000 kg of pig iron produced the basic oxygen furnace is the second most energy intensive process at 11 10 9 joules per ton or steel produced the electric arc furnace has significantly less energy
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Get PriceJul 28 2018 the latest data available 2016 put the worldwide seaborne dry bulk trade at 4553 million metric tons of which 1354 million metric tons or 30 were iron ore the iron ore tonnage is up 37 from 2010 the iron ore trade is overwhelmingly directed at east asia china accounted for 68 japan for 10 and south korea for 5
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Get PriceSafe carriage of iron ore other iron concentrates in bulk iron ore is used for the production of metallic iron in steelmaking although some 45 countries export natural iron ore resources seven countries provide 75 of the total exported the two largest exporters are brazil and australia with about 33 of total world exports each
Get PriceThe ball mill is the most common ore grinding technology today and probably more than 50 of the total world energy consumption for ore grinding is consumed in ball mills
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