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why we have to use coke limestone and iron ore to make iron

The more advanced way to smelt iron is in a blast furnace. A blast furnace is charged with iron ore, charcoal or coke (coke is charcoal made from coal) and limestone (CaCO 3 ). Huge quantities of air blast in at the bottom of the furnace, and the calcium in the limestone combines with the silicates to form slag.

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why is coke added to the blast furnace Vendr

Dec 01, 2020 1. Why Use Coke for Blast Furnace Ironmaking not Use Coal Directly? The heat source. When it is placed in a “box” with inert gas, it is dry and quenched. C (s) + O 2(g) CO 2(g) . The iron ore, coke and limestone ( charge ) is fed into the blast furnace from the top. Q1: What? hkk_925. 1 Answer.

Metallurgical Coke an overview ScienceDirect Topics

John C. Crelling, in Applied Coal Petrology, 2008 Publisher Summary. Metallurgical coke, along with iron ore and limestone, is layered into a blast furnace to convert the iron ore to metallic iron.Coke, which is mostly carbon, reacts with the blast air to produce carbon monoxide, which, in turn, reacts with the iron oxide to produce carbon dioxide and metallic iron.

Why Use Coke for Blast Furnace Ironmaking not Use Coal

Oct 06, 2019 Why Use Coke for Blast Furnace Ironmaking not Use Coal Directly? Coke is an important raw material in the smelting process of the blast furnace, accounting for about 45%. Others include pellets, sinter, lump ore, limestone and so on. Regarding coke, some people may have doubts. Coke and coal are all high-heating fuels.

Iron Ore an overview ScienceDirect Topics

Three potential sources (from the ores, sinter, or scrap) of naturally occurring radionuclides in the slag are discussed. Iron ores due to their geochemical properties scavenge radionuclides and heavy metals resulting in only trace levels of uranium in the main raw materials for iron-making; iron ore and coke ranging of 20–30 Bq/kg and 5 Bq/kg for limestone (Cooper, 2005).

why limestone and dolomite using during iron ore pellets

Jun 30, 2013 Iron Ores market report | HighBeam Business: Arrive Prepared. Virtually all of the iron ore mined in the world is used in steel making.… use blast furnaces to turn iron ore, coke, and limestone into pig iron and then into steel.… meeting these demands by making higher-quality fluxed iron ore pellets that can ….. fluxstone, limestone, and/or dolomite to the iron ore during the balling …

Iron Ore Smelting Process Bright Hub Engineering

Mar 13, 2010 The ore is loaded into a blast furnace along with measured quantities of coke and limestone. Hot combustion air is supplied to the furnace and some form of fuel used to raise the temperature. The iron is reduced from the ore by carbon in the coke, the limestone aiding slag separation from the molten iron. The slag and molten iron are tapped off from the bottom of the …

is lime stone used in making iron BINQ Mining

Mar 02, 2013 Limestone is used mainly in the iron making part of steel production where it is added to the iron ore before entering …. The chemistry of steelmaking. Making iron. Making iron Roll over the dots to see the names What do we need to make iron? Iron is usually made from iron ore, coal and limestone.

blast furnace metallurgy Britannica

The iron oxides in the ore are chemically reduced to molten iron by carbon and carbon monoxide from the coke. The slag formed consists of the limestone flux, ash from the coke, and substances formed by the reaction of impurities in the ore with the flux; it floats in a molten state on the top of the molten iron. Hot gases rise from the ...

Ratio of coking coal and iron ore to make steel

Ratio of coking coal and iron ore to make steel Products. As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any size-reduction requirements including, Ratio of coking coal and iron ore to make steel, quarry, aggregate, and different kinds of minerals.

How iron is made Forestry and Land Scotland

The ingredients to make useable iron were limestone, ironstone, coke and air. The coke is the fuel and the ironstone provides the iron ore. Ironstone is first roasted in calcining kilns, located next to the blast furnaces, to remove impurities. The air, or blast, was blown into …

Extracting iron Iron and aluminium GCSE Chemistry

Iron ore (haematite) Iron(III) oxide: A compound that contains iron : Coke: Carbon: Burns in air to produce heat, and reacts to form carbon monoxide (needed to reduce the iron oxide) Limestone ...

Steel and raw materials

Iron ore Coal Crude oil World exports, 2015 (Mt) 1 447 1 308 2 216 Iron ore Steel is an alloy consisting primarily of iron and less than 2% carbon. Iron ore is, therefore, essential for steel production, which is essential in maintaining a strong industrial base. 98% of mined iron ore is used to make steel. Iron …

In a blast furnace why are the coke and limestone needed

Jul 07, 2009 Iron ore is not normally smelted, instead it is reduced in a blast furnace with a mixture of coke & limestone. The coke burns removing the oxygen from the iron ore and melting the resulting iron.

How does coke fit into the steelmaking process

Coke and iron ore, along with other minerals, are heated in a furnace to make iron. Following are the two methods used to convert molten iron to steel: Basic oxygen furnace (or BOF). The BOF ...

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