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Blast furnace


In a blast furnace, fuel, ores, and flux (limestone) are continuously supplied through the ... He suggests that early blast furnace and cast iron production evolved from ..... of each constituent is...

BBC - GCSE Bitesize: Making iron


Iron is extracted from iron ore in a huge container called a blast furnace. ... burns in air to produce heat, and reacts to form carbon monoxide (needed to reduce ... limestone, calcium carbonate, helps to remove acidic impurities from the iron by ...

Metal extraction - IB Chemistry Web


The iron ore, coke and limestone ("charge") is fed into the blast furnace from the top. Once inside the hot furnace the coke reacts with the blast of air (containing oxygen) making carbon monoxide ... To do this limestone is added to the charge.

How a Blast Furnace Works - American Iron and Steel Institute


The blast furnace is a huge, steel stack lined with refractory brick, where iron ore, ... Sinter is produced from fine raw ore, small coke, sand-sized limestone and ...

Extraction of Iron and Steel Making - Doc Brown's Chemistry Clinic


Iron is produced (extracted) in a blast furnace by reducing iron oxides with carbon and it is ... coke and limestone is continuously fed into the top of the blast furnace. .... (3) Calcium carbonate (a base) is then added to remove the acidic oxide ...

The Blast Furnace in the extraction of iron from haematite from ...


The blast furnace Back to reactivity page. blast furnace. The raw materials ( haematite, coke and limestone) are fed into the top of the furnace. Hot air is blasted ...

Steel - Chemistry Department - Elmhurst College


Historically, most iron ore is converted to iron using a blast furnace, although a number ... three important raw materials: iron ore, coal converted to "coke", and limestone. ... The three raw materials are added to the top of the blast furnace. ... Fe2O3, with the carbon monoxide to produce molten iron metal and carbon diox...

Why is limestone added to the blast furnace during the extraction of ...


Why is limestone added to the blast furnace during the extraction of iron? Why is ... The iron produced by a blast furnace, called pig iron, is not very useful.

How iron is made - material, manufacture, making, history, used ...


The most common process is the use of a blast furnace to produce pig iron which ... reducing the carbon content and adding other elements such as manganese ... to produce pig iron in a blast furnace are iron ore, coke, sinter, and limestone.

Pig-iron production - INTERSTAHL Stahlhandel


Pig-iron is produced from iron and coke in a blast furnace. ... type of impurities in the iron different fluxes are added, for example limestone (for siliceous iron ore) ...

Popular Q&A
Q: Why is Limestone added to a Blast Furnace for producing Iron?
A: it purifies it. Read More »
Source: wiki.answers.com
Q: Why is limestone added to a blast furnace during the extraction o...
A: Well I have my Chemistry paper in 4 days so i think i can help u : Limestone is added to the blast furnace to remove impurities (such as as sand(Silicon Dioxide... Read More »
Source: answers.yahoo.com
Q: Why is limestone added to a blast furnace when used to extract ir...
A: Oxidation is loss of electrons and Reduction is gain of electrons. (OIL RIG) Oxidised means a species has lost electrons. Reduction means a species has gained e... Read More »
Source: answers.yahoo.com
Helpful Resources

The Extraction of Iron - Chemwiki


Aug 7, 2015 ... Extracting iron from iron ore using a Blast Furnace ... Steel-making: the basic oxygen process; Types of iron and steel; Some environmental ... The limestone is added to convert this into slag which melts and runs to the bottom.

Extraction of Iron in the Blast Furnace - GCSE SCIENCE


Limestone is calcium carbonate (CaCO3) and it is added to the blast furnace to remove the impurities in the iron ore. Calcium carbonate is decomposed by heat  ...