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The limestone decomposes to quicklime and carbon dioxide, and the quicklime removes acidic impurities (eg SiO2). So basically limestone is to remove impurities
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How is slag collected from a blast furnace?
iron is collected from blast furnace by drilling the taphole.Taphole is a hole drill and plug after cycle of time located in blast furnace bottom.
What is used in the furnace to extract the iron?
blast furnace
Why the height of blast furnace is 100ft?
the height of blast furnace is kept high to ensure the completion of reaction.
How much coal coke is needed to run a blast furnace for one day?
that would depend on the size of the blast furnace.
What kind of fire bricks are used for molten blast furnace slag?
What kind of fire bricks are used for molten blast furnace slag?
How does limestone coke and iron ore get into the blast furnace?
through the top of the blast furnace
How is limestone usefull?
because in a blast furnace the limestone removes unwanted substances as slag.
Why is Limestone added to a Blast Furnace for producing Iron?
it purifies it
What is a common flux in a blast furnace?
Limestone, dolomite, BOF slag, electric furnace slag, olivine
Which three substances are put into the blast furnace?
Limestone, Iron Ore and Coke.
What are the three substances fed into the blast furnace?
Carbon rich coke limestone and iron
What goes into a blast furnace?
Sinter, which is a mixture of iron ore, coke and limestone, and a blast of hot air. Externally to the furnace, iron ore, coke and limestone are mixed together Intimate mixing ensures that the reactants are as close as possible to each other. This is loaded into the top of the blast furnace. A blast of hot air ( ~ 1100 oC) is sent in at the bottom of the furnace, through tuyeres. The oxygen (air) is also one of the reactants. The products are tapped from the bottom of the furb=nace are liquid iron and 'slag' ( calcium silicate).
Why is limestone added to the blast furnace during the extraction of iron?
Iron ore contains the impurities sand and clay, which are silicon oxides. Limestone is added to remove these impurities.
What raw material are put into a blast furnace?
The blast furnace is a huge, steel stack lined with refractory brick, where iron ore, coke and limestone are dumped into the top, and preheated air is blown into the bottom. The raw materials require 6 to 8 hours to descend to the bottom of the furnace where they become the final product of liquid slag and liquid iron.
Pig iron is produced by heating the coke iron and limestone in a what?
Pig iron is produced when heating * Iron ORE (not iron as the question says!) * Coke * limestone in a Blast Furnace.
What is the German word for blast furnace?
Blast furnace = Hochofen
What is Blast Furnace?
A blast furnace is used to extract iron from its ore.
