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Blast furnace - Wikipedia

en.wikipedia.org/wiki/Blast_furnace

A blast furnace is a type of metallurgical furnace used for smelting to produce industrial metals, generally iron, but also others such as lead or copper. In a blast furnace, fuel, ores, and flux (l...

Limestone for Blast Furnace Applications - Carmeuse Lime & Stone

www.carmeusena.com/markets/steel/blast-furnance

Limestone will react with the temperature in the blast furnace as it continues down the furnace to react with sulfur from the iron and produce a slag with the silica ...

BBC - GCSE Bitesize: Making iron

www.bbc.co.uk/schools/gcsebitesize/science/aqa_pre_2011/rocks/metalsrev2.shtml

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 ...

iron and steel - Chemguide

www.chemguide.co.uk/inorganic/extraction/iron.html

This page looks at the use of the Blast Furnace in the extraction of iron from iron ore, and the ... Coke is produced by heating coal in the absence of air. ... The limestone is added to convert this into slag which melts and runs to the bottom.

How a Blast Furnace Works - American Iron and Steel Institute

www.steel.org/making-steel/how-its-made/processes/how-a-blast-furnace-works.aspx

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 ...

GCSE CHEMISTRY - Extraction of Iron in the Blast Furnace ...

www.gcsescience.com/ex20.htm

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  ...

The Extraction of Iron - Chemistry LibreTexts

chem.libretexts.org/Core/Inorganic_Chemistry/Descriptive_Chemistry/Elements_Organized_by_Block/3_d-Block_Elements/1b_Properties_of_Transition_Metals/Metallurgy/The_Extraction_of_Iron

Nov 29, 2015 ... Extracting iron from iron ore using a Blast Furnace ... Coke is produced by heating coal in the absence of air. Coke is cheap and ... The limestone is added to convert this into slag which melts and runs to the bottom. The heat ...

Blast furnace - IBChem

ibchem.com/IB/ibnotes/full/ope_htm/metal_extraction.htm

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

www.madehow.com/Volume-2/Iron.html

The most common process is the use of a blast furnace to produce pig iron which is ... of material for the production of steel springs to be used in clockmaking. ... to produce pig iron in a blast furnace are iron ore, coke, sinter, and limestone.

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

www.answers.com/Q/Why_is_limestone_added_to_the_blast_furnace_during_the_extraction_of_iron

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.