What is the chemical equation for making iron from its ore?

What is the chemical equation for making iron from its ore?

Extraction of Iron from Its Oxide One of the main steps in the reduction of iron oxide is FeO +C---------------------- Fe + C It is a combination of two simpler reactions. FeO--------Fe +C delta G FeO, Fe ------ (1) C + 1/2 O2----------CO delta G C, CO---(2) Net Gibbs energy change 1 + 2 DELTA f G The result reaction will take place when DELTA f G is negative. From the ellingham diagram it is seen that C, CO GOES DOWNWARDS AT TEMPERATURE 1073 k this line comes below Fe , FeO line So in this range carbon will reduce Feo. Fe2O3 and Fe3O4 are reduced by carbon at 500K An element can reduce the oxide of another element if the standard free energy of formation of the oxide of the former is more negative than the latter. It can be observed from the given graph that above 1073 K (approx.), . So, coke will reduce FeO, and will itself be oxidised to CO. During 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. Thus, it is the lower part where the reduction of iron oxides (Fe2O3 and Fe3O4) takes place. The reactions taking place in the lower temperature range (500 ? 800 K) are: 3Fe2O3+CO-------2Fe3O4+CO2 Fe3O4+4CO-----3Fe+4CO2 Fe2O3+CO-----2FeO+CO2 The reactions taking place in the higher temperature range (900 ? 1500 K) are: C+O2----CO2 FeO+CO-------Fe+CO2 CACO3----- CAO+CO2 CAO+SIO2--- CASIO3(SLAG) The silicate impurity of the ore is removed as slag by calcium oxide (CaO), which is formed by the decomposition of limestone (CaCO3). AT 2000 K C+ O2---CO2 FeO+C----Fe+C

Extraction of Iron from Its Oxide One of the main steps in the reduction of iron oxide is FeO +C---------------------- Fe + C It is a combination of two simpler reactions. FeO--------Fe +C delta G FeO, Fe ------ (1) C + 1/2 O2----------CO delta G C, CO---(2) Net Gibbs energy change 1 + 2 DELTA f G The result reaction will take place when DELTA f G is negative. From the ellingham diagram it is seen that C, CO GOES DOWNWARDS AT TEMPERATURE 1073 k this line comes below Fe , FeO line So in this range carbon will reduce Feo. Fe2O3 and Fe3O4 are reduced by carbon at 500K An element can reduce the oxide of another element if the standard free energy of formation of the oxide of the former is more negative than the latter. It can be observed from the given graph that above 1073 K (approx.), . So, coke will reduce FeO, and will itself be oxidised to CO. During 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. Thus, it is the lower part where the reduction of iron oxides (Fe2O3 and Fe3O4) takes place. The reactions taking place in the lower temperature range (500 ? 800 K) are: 3Fe2O3+CO-------2Fe3O4+CO2 Fe3O4+4CO-----3Fe+4CO2 Fe2O3+CO-----2FeO+CO2 The reactions taking place in the higher temperature range (900 ? 1500 K) are: C+O2----CO2 FeO+CO-------Fe+CO2 CACO3----- CAO+CO2 CAO+SIO2--- CASIO3(SLAG) The silicate impurity of the ore is removed as slag by calcium oxide (CaO), which is formed by the decomposition of limestone (CaCO3). AT 2000 K C+ O2---CO2 FeO+C----Fe+C

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For the best answers, search on this site shorturl.im/ax7yy Most of this is not chemical reactions as much as physical processes. The preparation of Coke uses heat to drive off all of the volatile compounds in the coal, leaving just elemental Carbon. The conversion of the Iron ore to the metallic Iron is a chemical reduction, but depends upon the chemical nature of the ore being used, for example: 2 Fe2O3 + 3 C (as coke) --- 4 Fe + 3 CO2 (g) This is actually a series of reactions that are temperature dependent. 3 Fe2O3 + CO --- CO2 + 2 Fe3O4 (Begins at 850° F) Fe3O4 + CO --- CO2 + 3 FeO (Begins at 1100° F) FeO + CO --- CO2 + Fe and FeO + C --- CO + Fe (Begins at 1300° F) The fluxes are added to deal with impurities and to promote the primary reaction (reduction of Iron ore). Steel is an alloy of Iron and Carbon, with Silicon and other metals. Take a look at the sites below for additional information.

For the best answers, search on this site shorturl.im/ax7yy Most of this is not chemical reactions as much as physical processes. The preparation of Coke uses heat to drive off all of the volatile compounds in the coal, leaving just elemental Carbon. The conversion of the Iron ore to the metallic Iron is a chemical reduction, but depends upon the chemical nature of the ore being used, for example: 2 Fe2O3 + 3 C (as coke) --- 4 Fe + 3 CO2 (g) This is actually a series of reactions that are temperature dependent. 3 Fe2O3 + CO --- CO2 + 2 Fe3O4 (Begins at 850° F) Fe3O4 + CO --- CO2 + 3 FeO (Begins at 1100° F) FeO + CO --- CO2 + Fe and FeO + C --- CO + Fe (Begins at 1300° F) The fluxes are added to deal with impurities and to promote the primary reaction (reduction of Iron ore). Steel is an alloy of Iron and Carbon, with Silicon and other metals. Take a look at the sites below for additional information.

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This Site Might Help You. RE: What is the chemical equation for making iron from its ore?

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