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en.wikipedia.org/wiki/Blast_furnace

A blast furnace is a type of metallurgical furnace used for smelting to produce industrial metals and its alloys, generally iron, but also others such as lead or copper. In a blast furnace fuel(coke), ores, and flux (limestone) are continuously ... He suggests that early blast furnace and cast iron production evolved from furnaces ...

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 ...

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 ...

mypchem.com/myp10/myp10_htm/metal_extraction.htm

Each of the raw materials is necessary for the production - click to see its purpose . The blast furnace. The iron ore, coke and limestone ("charge") is fed into the blast furnace from the top. ... To do this limestone is added to the charge.

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 ...

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. ... limestone, calcium carbonate, helps to remove acidic impurities from the iron by ...

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  ...

sciencepark.etacude.com/lzone/reactivity/blast_furnace.php

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 ...

www.answers.com/Q/Why_is_limestone_added_to_the_blast_furnace_during_the_extraction_of_iron

The purpose of adding coke to the iron ore in a blast furnace is? COKE acts as a ... Why is Limestone added to a Blast Furnace for producing Iron? it purifies it.