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E traction of iron blast furnace

ZIMSEC O Level Combined Science Notes Extraction of iron The blast furnace After iron ore is mined it is send to the blast furnace Iron is extracted from its ore in a blast furnace The structure of a blast furnace Image credit

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    Blast Furnace Slag Cement

    Blast furnace slag cement is the mixture of ordinary Portland cement and fine granulated blast furnace slag obtained as a by product in the manufacture of steel with percent under 70 to that of cement Ground granulated blast furnace slag cement GGBFS is a fine glassy granules which contain cementatious properties

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    Extraction Of Iron Yahoo Answers

    May 16 2008A key step in the extraction of iron from its ore is FeOs COg Fes CO2g Kp 0403 at 1000C This step occurs in the 700C to 1200C zone within a blast furnace What are the equilibrium partial pressures of COg and CO2g when 100 atm of COg and excess FeOs react in a sealed container at 1000C

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    What Is The Chemical Equation For Making Iron From

    Mar 07 2010During the extraction of iron the reduction of iron oxides takes place in a blast furnace In this process hot air is blown from the bottom of the furnace and coke is burnt to raise the temperature up to 2200 K in the lower portion itself The temperature is lower in the upper part

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    Examstyle Questions Scool The Revision Website

    The following questions are about the blast furnace and the production of iron a Why are hot blasts of air blown in to the blast furnace 1 mark b Why is limestone added to the blast furnace 1 mark c Railway lines are welded together using molten iron The molten iron is made using the thermit reaction where iron oxide is reacted with aluminium powder

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    Blast Furnace Metallurgy

    Blast furnace The iron oxides in the ore are chemically reduced to molten iron by carbon and carbon monoxide from the coke The slag formed consists of the limestone flux ash from the coke and substances formed by the reaction of impurities in the ore with the flux it floats in a molten state on the top of the molten iron

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    Iron Ore Processing For The Blast Furnace

    Iron Ore Processing for the Blast Furnace Courtesy of the National Steel Pellet Company The following describes operations at the National Steel Pellet Company an iron ore mining and processing facility located on the Mesabi Iron Range of Minnesota Creating steel from lowgrade iron ore requires a long process of mining crushing

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    Extraction Of Iron Examples Answers Activities

    Extraction of Aluminium Carbon is more reactive than iron so it can push out or displace the iron from iron oxide In this reaction the iron oxide is reduced to iron and the carbon is oxidised to carbon dioxide Iron from the blast furnace is an alloy of about 96 per cent iron with carbon and some other impurities

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    Analysis Of Slag Flow In Blast Furnace During The

    The iron making blast furnace is a plex high temperature counter current reactor in which iron bearing materials ore sinter pellet and coke are alternately charged along with a suitable flux to create a layered burden in the furnace

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    Extraction Of Iron From Blast Furnace Slag

    The molten calcium silicate known as slag floats on top of the molten iron at the base of the furnace Here it is tapped off and cooled to use in building roads Fig3 below show the stages in the extraction of iron using a blast furnace Figure 3 Inside a blast furnace Which two word equations show the

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    What Is The Role Of Coke In The Extraction Of Iron

    Iron ore is not normally smelted instead it is reduced in a blast furnace with a mixture of coke limestone The coke burns removing the oxygen from the iron ore and melting the resulting iron

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    Extraction Of MetalsIron Wikiversity

    A mixture of crushed iron ore coke an almost pure form of carbon and limestone is fed into the top of the blast furnace The coke is oxidised to carbon dioxide C O 2 CO 2 The reaction is exothermic The carbon dioxide reacts with coke to form carbon monoxide CO 2 C 2CO The reaction is endothermic IronIII oxide in the ore is reduced to iron by the carbon monoxide Fe 2 O 3 3CO

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    Explain The Extraction Of Iron By Blast Furnace

    Extraction iron from its Oxide ores Blast furnace Oxide ores of iron after concentration through calcinationroasting are mixed with limestone and coke and fed into a Blast furnace from its top Here the oxide is reduced to the metal

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    3 Extracting Iron IGCSE Chemistry Google Sites

    54 describe and explain the main reactions involved in the extraction of iron from iron ore Haematite using coke limestone and air in a blast furnace What does this mean Iron is only a moderately reactive metal but it is less reactive than Carbon

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    Eand Traction Of Iron From Blast Furnace Slag

    Extracting iron from iron ore using a Blast Furnace The mon ores of iron are both iron oxides and these can be reduced to iron by heating them with carbon in the form of coke Coke is produced by heating coal in the absence of air

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    HOW A BLAST FURNACE WORKS Foundry Gate

    Iron oxides can e to the blast furnace plant in the form of raw ore pellets or sinter The raw ore is removed from the earth and sized into pieces that range from 05 to 15 inches 4 and the iron content ranges from 50 to 70 This iron rich ore can be charged directly into a blast furnace without any further processing

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    What Is The Purpose Of Limestone In A Blast Furnac

    Nov 14 2017Answer Wiki limestone is used to remove impurities in the furnace and the main impurity of the blast furnace is silica sand and rock which is silicon dioxide silicon dioxide is a solid at furnace temperatures so it reacts with calcium oxide from the deposition of limestone CaCO3

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    Extraction Of Iron SlideShare

    May 22 2009Steps of Extraction Step1 Concentration Step2 Calcination Step3 Smelting The concentrated ore is mixed with calculated quantity of coke limestone and the mixture is put in the Blast Furnace from top 10 Blast Furnace It is a tall cylindrical furnace made of steel It is lined inside with fire bricks It is narrow at the top and has an arrangement for the introduction of ore and outlet for waste

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    Iron Extraction Process

    Blast furnace The blast furnace works according to the counterflow principle the stock column made up of ore coke and additions slides down towards its conversion while the top gases rise and heat the stock column At the bottom of the furnace the iron ore is chemically reduced The blast reacts with the coke carbon dioxide and carbon monoxide are formed at temperatures of up to 2000 C

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    Blast Furnace ScienceAid

    Blasts furnaces are used for smelting during the production of metals such as iron lead zinc and copper A blast furnace works by blasting hot air up through the furnace while fuels limestone and ore move continuously through the top of the furnace The method used in

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    Extraction Of Iron From Haematite Reference Notes

    The blast furnace is cylindrical steel vessel limed 6m in diameter On passing Pre heated pressed air inside the furnace four distinct zones are formed a Zone of reduction bustion This zone lie at the bottom of the blast furnace where carbon burns in presence of pre heated air forming CO 2 and heat C O 2 Co 2 heat Here the temp is maintained above 1500 0 c This produces the energy required

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    Chemistry Extraction Iron Blast Furnace Flashcards

    4 The carbon monoxide then reduces the iron ore to iron 3CO Fe2O3 3CO2 2Fe carbon monoxide iron oxide carbon dioxide iron 5 The iron is molten at this temperature and its very dense so it runs straight to the bottom of the furnace where its tapped off Removing the impurities 1 The main impurity is sand silicon dioxide

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    Why Is The Furnace Used For The Extraction Of Iron

    May 17 2018Why is the furnace used for the extraction of iron called a blast furnace The furnace is effectively two refractory lined truncated cones one inverted joined at the widest parts with the raw materials fed into the top via a double cone airlock

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    Describe The Extraction Of Iron From Its Hematite

    EXTRACTION OF IRON The most important raw materials or ores from which iron metal extracted are oxide ores ie hematite Fe2O3 or limonite Fe2O3 3H2O The first stage involved in the manufacture of iron is the reduction of oxide ores in a blast furnace as given in fig This involves the crushing of the oxide ore to produce lumps

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    Redox Extraction Of Iron And Transition Metals Rev

    Redox reactions are involved in the extraction of metals from their ores eg extracting iron by reduction within the blast furnace Transition metals have high melting points and densities form

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    Evolution Of Blast Furnace Iron Making IspatGuru

    Jan 10 2016Evolution of Blast Furnace Iron Making The origin of the first smelting of iron is concealed in the unrecorded history of human civilization The first evidence of iron implements being used in ancient times actually es from Egypt where an iron tool was found in a joint between two stones in a pyramid

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    Slag Iron Steel 2015 IBM

    SLAG IRON AND STEEL Blast Furnace Slag In the blast furnace the slag floating over molten pig iron hot metal is flushed out in slag pot and then sent to slag granulating plant or to cooling pits Depending upon the cooling process three types of slags are generated namely aircooled slag granulated slag and expanded slag

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    Sintering Iron Ore

    Iron Ore Sintering Raw Materials And Granulation 2018119 ABSTRACTSintering is an agglomeration process that fuses iron ore fines fluxes recycled products slagforming elements and coke The purpose of sintering is to obtain a product with suitable position quality and granulometry to be used as burden material in the blast furnace

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    Slag Iron Steel 2015

    SLAG IRON AND STEEL Blast Furnace Slag In the blast furnace the slag floating over molten pig iron hot metal is flushed out in slag pot and then sent to slag granulating plant or to cooling pits Depending upon the cooling process three types of slags are generated namely aircooled slag granulated slag and expanded slag

    more
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    Oxidative Leaching Of Zinc And Alkalis From Iron B

    PDF The sludge from a wetoff gas cleaning system of the iron blast furnace BF contains significant amounts of iron however they cannot be recycled due to their high content of zinc and alkalis

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