Introduction :
Let us first be aware of the element iron, and then we can discuss more about molten iron. It is a chemical element with the atomic number 26 and its reperesentation is done by the formula 26. Mostly, it is available in the two forms, i.e., +2 and +3 oxidation states. It is one of the most common element which is available in plenty on the earth's crust. It is produced by the fusion of heavy metal elements mostly found on the surface of stars. Iron and its all form of alloys are regarded as the ferromagnetic elements.
Basically, molten iron is obtained in the blast furnace. Basic fetaure of blast furnace is that we need to remove oxygen as well as the impurities to obtain the iron in its pure form.
The various steps of blast furnace are as follows :
The main sources of iron ore are haematite(Fe2O3http://drupal.mathcontent.com/node/60928/edit) and magnetite(Fe3O4).
(1) First of all, we need to add Charcoal, limestone, iron ore and coke from the top of the blast furnace.
(2) Next, the inserted charge gets heated and dried by the hot gases which is blown through the furnace.
(3) Thus, there is formation of the molten iron which starts melting down from the inside surface of the molten iron.
(4) As there is insufficient supply of oxygen in the blast furnace, so, mostly there is formation of carbon monoxide only.
(5) Thus, molten iron and slag is drawn out from the blast furnace on a periodic basis.
The various reactions of blast furnace are :
(1) 3Fe2O3 + CO -> CO2 + 2Fe3O4 ( at a temp. of 8500F )
(2) Fe3O4 + CO -> CO2 + 3FeO ( at a temp. of 11000F )
(3) FeO + CO -> CO2 + Fe or ( at a temp. of 13000F )
FeO + C -> CO + Fe ( at a temp. of 13000F )
(4) CaCO3 -> CaO + CO2
(5) C + O2 -> CO2 + Heat
Molten iron is basically used in two kinds of applications :
(1) Metallurgical - It is used in the various engineering applications like construction of machinery tools, automobile parts, used as a pillar in the construction of buildings. Pure iron being very soft can't be used for these purposes, so mostly it is used in the form of steel which is quite hard and can be used for purposes.
(2) Iron is used as a catalyst in the various chemical processes like the production of ammonia in the Haber-Bosch process.
(3) Iron also has a biological importance as it is required by all the living organisms for their healthy growth.
Disadvantages of molten iron :
(1) Intake of high amount of iron content in the body can lead to the damage of body parts like DNA, proteins, lipids etc.
(2) There can be also damage to the cells of gastro-intestinal tract, coma and various heart related diseases.
Let us first be aware of the element iron, and then we can discuss more about molten iron. It is a chemical element with the atomic number 26 and its reperesentation is done by the formula 26. Mostly, it is available in the two forms, i.e., +2 and +3 oxidation states. It is one of the most common element which is available in plenty on the earth's crust. It is produced by the fusion of heavy metal elements mostly found on the surface of stars. Iron and its all form of alloys are regarded as the ferromagnetic elements.
Basically, molten iron is obtained in the blast furnace. Basic fetaure of blast furnace is that we need to remove oxygen as well as the impurities to obtain the iron in its pure form.
The various steps of blast furnace are as follows :
The main sources of iron ore are haematite(Fe2O3http://drupal.mathcontent.com/node/60928/edit) and magnetite(Fe3O4).
(1) First of all, we need to add Charcoal, limestone, iron ore and coke from the top of the blast furnace.
(2) Next, the inserted charge gets heated and dried by the hot gases which is blown through the furnace.
(3) Thus, there is formation of the molten iron which starts melting down from the inside surface of the molten iron.
(4) As there is insufficient supply of oxygen in the blast furnace, so, mostly there is formation of carbon monoxide only.
(5) Thus, molten iron and slag is drawn out from the blast furnace on a periodic basis.
The various reactions of blast furnace are :
(1) 3Fe2O3 + CO -> CO2 + 2Fe3O4 ( at a temp. of 8500F )
(2) Fe3O4 + CO -> CO2 + 3FeO ( at a temp. of 11000F )
(3) FeO + CO -> CO2 + Fe or ( at a temp. of 13000F )
FeO + C -> CO + Fe ( at a temp. of 13000F )
(4) CaCO3 -> CaO + CO2
(5) C + O2 -> CO2 + Heat
Image of molten iron :
Applications of molten iron :
Molten iron is basically used in two kinds of applications :
(1) Metallurgical - It is used in the various engineering applications like construction of machinery tools, automobile parts, used as a pillar in the construction of buildings. Pure iron being very soft can't be used for these purposes, so mostly it is used in the form of steel which is quite hard and can be used for purposes.
(2) Iron is used as a catalyst in the various chemical processes like the production of ammonia in the Haber-Bosch process.
(3) Iron also has a biological importance as it is required by all the living organisms for their healthy growth.
Disadvantages of molten iron :
(1) Intake of high amount of iron content in the body can lead to the damage of body parts like DNA, proteins, lipids etc.
(2) There can be also damage to the cells of gastro-intestinal tract, coma and various heart related diseases.
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