The production of iron from its ore involves an oxidation-reduction reaction carried out in a blast furnace. Iron ore is usually a mixture of iron and vast quantities of impurities such as sand and clay referred to as gangue. The iron found in iron ores are found in the form of iron oxides.
Iron is extracted from iron ore in a huge container called a blast furnace. Iron ores such as haematite contain iron oxide. The oxygen must be removed from the iron oxide to leave the iron behind. Reactions in which oxygen is removed are called reduction reactions.
This concentrated ore is mixed with limestone (CaCO 3) and Coke and fed into the blast furnace from the top. It is in the blast furnace that extraction of iron occurs. The extraction of iron from its ore is a long and subdued process, that helps in separating the …
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Nov 25, 2012· Extraction of Iron (Blast Furnace) Extraction of Iron (Blast Furnace) Skip navigation Sign in. Search. Loading... Close. This video is unavailable. Watch Queue Queue. Watch Queue Queue.
Iron does not exist on the Earth as an element, but rather in the form of its oxides and sulphides in iron ore. They are the starting materials for the technical extraction of pig iron in the blast furnace. The blast furnace operates at 1900 °C in order to smelt iron from iron ore.
Many things are produced in the extracting or iron from iron ore in a blast furnace. We will write a custom essay on Extracting Iron from Iron Ore in a Blast Furnace specifically for …
Extracting iron from iron ore using a Blast Furnace. Introduction. The common 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.
Iron works are located close to coal fields so that plentiful of coal is available at cheap rate. Coal is used as reducing agent and as fuel. Pig iron is converted into cast iron by heating molten pig iron with scrap iron and coke in specially designed furnaces. A blast of hot air is blown through the mixture. Cast iron contains about 3% carbon.
Iron Extraction Process. In the blast furnace process, the first step on the way towards heavy plate, pig iron is produced from iron ore. The composition of the ore and additions is accurately adjusted to the final products of AG der Dillinger Hüttenwerke and Saarstahl AG.
Extraction of Metals. Extraction of Iron. Chemistry of the blast furnace. Hot air is blasted into the furnace causing coke (carbon) to burn rapidly producing carbon dioxide and raising the temperature to 2000 °C. carbon + oxygen carbon dioxide + heat. C (s) + O 2(g) CO 2(g) The carbon dioxide then
extracting iron from iron ore using blast furnace: Extracting iron from its ore requires a series of steps to be followed and is considered as the penultimate process in metallurgy. The steps need the ore to be concentrated first, followed by the extraction of the metal from the concentrated ore …
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 s-cool.co.uk.
A blast furnace is a type of metallurgical furnace used for smelting to produce industrial metals, generally pig iron, but also others such as lead or copper. Blast refers to the combustion air being "forced" or supplied above atmospheric pressure.. In a blast furnace, fuel (), ores, and flux are continuously supplied through the top of the furnace, while a hot blast of air (sometimes with ...
May 22, 2009· The Step by Step Process of Extracting Iron from its Ore using the Blast Furnace with details of Chemical Reactions. Question Answers based on the process of extraction of metals.
THE EXTRACTION OF IRON AND ITS IMPACT ON THE ENVIRONMENT. ... Iron(III) oxide is reduced when oxygen is removed from it. A blast furnace is used for this process [Figure 4]. Figure 4: A blast furnace: ... Impacts on the environment due to the extraction of iron from haematite does not only start during the extraction of iron from the ore - it ...
Iron processing, use of a smelting process to turn the ore into a form from which products can be fashioned. Included in this article also is a discussion of the mining of iron and of its preparation for smelting. Iron (Fe) is a relatively dense metal with a silvery white appearance and distinctive
Jul 21, 2014· Ascending vertically, the furnace temperature decreases and reaches around 300ºC at the top waste gas expulsion point. FOUR raw materials are added to a blast furnace. Iron ore-such as haematite, which is a form of Iron (III) oxide, Fe 2 O 3; Coke-coal that has been heated but not allowed to burn, which is a form of Carbon
The process of the extraction of iron is carried out by the following steps: Concentration of ore Calcination or Roasting of ore Reduction of ore : Concentration of ore: In this metallurgical operation, the ore is concentrated by removing impurities like soil etc. ... The blast furnace is a cylindrical tower like structure about 25m to 35m high.
The method. 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.. Limestone (calcium carbonate).. Coke - mainly carbon.. The charge is placed a giant chimney called a blast furnace. The blast furnace is around 30 metres high and lined with fireproof bricks.
blast furnace process. The iron ore concentrate is now mixed and ready for the pelletizing process. Pelletizing A pellet plant contains a series of balling drums where the iron ore concentrate is formed into soft pellets, in much the same manner that one rolls a snowball, to make a pellet about the size of a marble (between 1/4" and 1/2").
2) Reduction of ore in Blast Furnace: - Roasted ore is finally reduced in a blast furnace at a high temperature to get the pig iron. Process is called as Smelting of ore. Coke is used as a fuel which generates Carbon monoxide for the reduction of ore. Calcium carbonate or limestone is used as flux which forms slag. Ore, Coke and Flux ratio is 3 ...
Iron is extracted from iron ore. in a huge container called a blast furnace. Iron ores such as haematite contain iron(III) oxide, Fe 2 O 3. The oxygen must be removed from the iron(III) oxide in ...
Iron Ore Smelting Process Using Modern Blast Furnaces. Although the basic ingredients of an iron ore blast furnace has changed little over the last hundred years or so, the furnaces themselves have been modernized to improve efficiency and the purity of the iron and steel.
The best known Iron ore is called Haematite (Haem - means Iron, as in Haemoglobin) It contains Iron Oxide and many impurities. It is dropped into the top of a blast-furnace along with Coke (purified Coal, almost pure Carbon ) and Limestone (Calcium Carbonate) .
The calcined ore is mixed with lime stone (CaCO 3) (Flux) and ore in the ratio of 8:1:4 and charged into blast furnace. The blast furnace is cylindrical steel vessel limed 6m in diameter. On passing Pre heated compressed air inside the furnace, four distinct zones are formed. a. Zone of reduction combustion: This zone lie at the bottom of the ...
Sep 13, 2013· Extraction of Iron (Fe) from its haematite Iron is extracted by heating the iron ore with carbon in the blast furnace. Three substances are needed to enable the extraction of iron from its ore. The combined mixture is called the charge:-Haematite, iron …
Extracting iron from iron ore using a Blast Furnace. The common 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. Coke is cheap and provides both the reducing agent for the reaction and also the heat source.
EXTRACTION OF IRON IN A BLAST FURNACE Iron is also below carbon in the reactivity series, so therefore carbon can be used to reduce it (note: reduction can also mean to remove the oxygen from a compound). This is done in a blast furnace.
How do we extract iron from its mineral ores? How do we convert it into steel? The raw materials needed i.e. limestone, coke, air and iron ore and the chemistry of the blast furnace are fully described. Why convert iron into steel? How do you make steel? The manufacture of steel alloys is further described. Scroll down for revision notes on extraction procedures and theory which should prove ...
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