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   How molten iron is produced in a blast furnace?

   • Molten iron is produced in a blast furnace by the following steps: 1. Charge (solid iron ore, coke, and limestone) is constantly dumped into the top of the furnace. 2. A blast of hot air is blown into the furnace from the bottom. 3. Coke is the fuel that supplies additional heat, increasing the temperature of the charge. 4.

   Blast Furnace Process - Steel Museum

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   How does a blast furnace produce pig iron?

   • blast furnace and hot-blast stove Schematic diagram of a modern blast furnace (right) and a hot-blast stove (left). Blast furnaces produce pig iron from iron ore by the reducing action of carbon (supplied as coke) at a high temperature in the presence of a fluxing agent such as limestone.

   Blast furnace | Definition, Temperature, Diagrams, & Facts

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   How does a blast furnace work?

   • Blast furnace, a vertical shaft furnace that produces liquid metals by the reaction of a flow of air introduced under pressure into the bottom of the furnace with a mixture of metallic ore, coke, and flux fed into the top. Blast furnaces are used to produce pig iron from iron ore for subsequent processing into steel.

   Blast furnace | Definition, Temperature, Diagrams, & Facts

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   What was the difference between a bloomery and a blast furnace?

   • Blast furnaces were a more complex and expensive method of producing iron than bloomeries, but they could produce iron in much greater amounts, could use ores that the bloomery process couldn’t, and produced a liquid, castable iron, more suitable for producing guns than wrought iron. A cast iron cannon was much cheaper than a bronze one.

   The Blast Furnace: 800 Years of Technology Improvement

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   Which iron ores can be fed directly into a blast furnace?

   • Natural or direct shipping iron ores contain between 50-70% iron and can be fed directly into the blast furnace. Fe 3 O 4 decomposes when heated to ferrous oxide (FeO) and ferric oxide (Fe 2 O 3) via Fe 3 O 4 → FeO + Fe 2 O 3. A specialized type of coal, called hard coal, is used to make coke, a porous form of carbon.

   Ironmaking 101 – From Ore to Iron with Blast Furnaces

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   What is a blast furnace used for?

   • In Europe, the blast furnace developed gradually over the centuries from small furnaces operated by the Romans, in which charcoal was used for reducing ore to a semisolid mass of iron containing a relatively small amount of carbon and slag. The iron mass was then hammered to remove the slag, yielding wrought iron.

   Blast furnace | Definition, Temperature, Diagrams, & Facts

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2. www.bbc.co.uk › bitesize › guidesRedox, extraction of iron and transition metals Extracting iron

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   Extracting iron. 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...

3. www.britannica.com › technology › blast-furnaceBlast furnace | Definition, Temperature, Diagrams, & Facts ...

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   5 days ago · Blast furnaces produce pig iron from iron ore by the reducing action of carbon (supplied as coke) at a high temperature in the presence of a fluxing agent such as limestone. Ironmaking blast furnaces consist of several zones: a crucible-shaped hearth at the bottom of the furnace; an intermediate zone called a bosh between the hearth and the ...

   • Author: The Editors of Encyclopaedia Britannica

4. en.wikipedia.org › wiki › Blast_furnaceBlast furnace - Wikipedia

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   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 supplied above atmospheric pressure .

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6. insights.globalspec.com › article › 6746From Ore to Iron with Blast Furnaces - GlobalSpec

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   Oct 10, 2017 · Iron is made by reacting iron ore (iron oxide and impurities), coke (a reductant) and limestone (CaCO 3) in a blast furnace. Iron ores with lower iron content such as taconite are first processed to concentrate the iron level and drive off volatile impurities.

7. technologystudent.com › joints › iron3THE BLAST FURNACE - IRON PRODUCTION

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   As the mixture of iron ore, coke and limestone heats, the hot waste gases are collected and cleansed. They are then used to help heat the air blast, required if blast furnace is to reach the high temperatures needed to produce molten iron. The stock level is constantly ‘topped up’.

8. steelmuseum.org › blast_furnaceBlast Furnace Process - Steel Museum

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   Molten iron is produced in a blast furnace by the following steps: 1. Charge (solid iron ore, coke, and limestone) is constantly dumped into the top of the furnace. 2. A blast of hot air is blown into the furnace from the bottom. 3. Coke is the fuel that supplies additional heat, increasing the temperature of the charge. 4.

9. www.construction-physics.com › p › the-blast-furnaceThe Blast Furnace: 800 Years of Technology Improvement

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   Feb 23, 2023 · Iron ore (largely iron oxide), coke (coal that has been heated to drive out impurities), and limestone get placed in the furnace, where the coke reacts with the iron and air to form a high carbon iron known as “pig iron” (so named because historically the iron flowing down a trench into a series of casting molds resembled a pigs suckling ...