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

Why We Have To Use Coke Limestone And Iron Ore To Make Iron

Why We Have To Use Coke Limestone And Iron Ore To Make Iron. Coke came into use in great britain in the 1700s, partly because of its superior crushing strength to that of coal.making steel without coal.the method is to use a receiving environment of molten metal oxides, in which the iron ore would dissolve, and then pass an electric current through it, to precipitate the iron.

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Creating Iron HowStuffWorks

Apr 01, 2000  ­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

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How does coke fit into the steelmaking process?

Jan 03, 2015  Coke and iron ore, along with other minerals, are heated in a furnace to make iron. ... this process uses 1,400 kilograms (or kg) of iron ore, 770 kg of coal, 150 kg of limestone

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In a blast furnace why are the coke and limestone needed ...

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

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Coal to Make Coke and Steel, Kentucky Geological Survey ...

Sep 24, 2019  The coke is mixed with iron ore and limestone to make molten iron, which is then further treated and heated to make steel. Generalized diagram showing how steel is made. In the steel-making process, coke is used in the blast furnace as a (1) fuel to produce added heat; (2) chemical-reducing agent for the reduction of iron oxides; and (3) as a ...

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Why Use Coke for Blast Furnace Ironmaking not Use Coal ...

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

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Creating Iron HowStuffWorks

­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

More

How does coke fit into the steelmaking process?

Jan 02, 2015  Coke and iron ore, along with other minerals, are heated in a furnace to make iron. ... this process uses 1,400 kilograms (or kg) of iron ore, 770 kg of coal, 150 kg of limestone

More

In a blast furnace why are the coke and limestone needed ...

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

More

Ironmaking 101 – From Ore to Iron with Blast Furnaces ...

Oct 10, 2017  Iron is made by reacting iron ore (iron oxide and impurities), coke (a reductant) and limestone (CaCO 3) in a blast furnace. Iron ores with lower iron content such as taconite are first processed to concentrate the iron level and drive off volatile impurities. The iron ore is dressed or crushed into 0.5-1 in. chunks, which increases surface ...

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Blast furnace metallurgy Britannica

Blast furnaces produce pig iron from iron ore by the reducing action of carbon (supplied as coke) at a high temperature in the presence of a fluxing agent such as limestone.Ironmaking blast furnaces consist of several zones: a crucible-shaped hearth at the bottom of the furnace; an intermediate zone called a bosh between the hearth and the stack; a vertical shaft (the stack) that extends from ...

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Why do we use coke for making iron and not coal? - Quora

The problem with using coal in ironmaking is that when you heat up most coals they expand, deform, and/or crumble as they outgas a variety of hydrocarbons. This is very bad behavior for a material being put into an ironmaking blast furnace, becaus...

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The chemistry of steelmaking. Making iron.

What do we need to make iron? Making iron is the first step in the production of steel. Iron is usually made from iron ore, coal and limestone - although some plants around the world have developed alternative methods of iron manufacture.These newer methods require slightly different raw materials but iron ore, coal and limestone remain the starting point for most steel manufacture in the UK.

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Extracting iron - Redox, extraction of iron and transition ...

Coke Carbon (C) Used as a fuel and reacts to form carbon monoxide (needed to reduce the iron(III) oxide) Limestone Calcium carbonate (CaCO 3) Helps to remove acidic impurities from the iron by ...

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Iron Ore Smelting Process - Bright Hub Engineering

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 furnace, the slag being ...

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Making steel without coal: Lets talk about coal

Making steel using traditional methods. First, iron is smelted from its mineral ore. This is usually an iron oxide such as haematite or magnetite. A furnace temperature exceeding 1600C will release the iron, in the form of "pig iron", so called for the shape of the ingots. This is a

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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.

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Can We Make Steel Without Coal? - Coal Action Network Aotearoa

Apr 24, 2013  About half of the carbon in the coke combines with the oxygen from the iron ore to make CO2. The rest of the coke is burned in a blast of air in the blast furnace to provide the required high temperature; making more CO2. The resulting pig iron typically contains 2.5-4.5% carbon, making it relatively brittle and unsuitable for most uses.

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How does coke and coal play into steel making? - FedSteel

Jun 22, 2016  When coke is consumed it generates intense heat but little smoke, making it ideal for smelting iron and steel. Prior to the 1880’s, steel was produced using charcoal. By 1920, nearly 90% of US steel was produced using coke. Coke processes Coke is

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why coke is added to iron ore for pelletizing

Iron ore is converted into various types of iron through several processes. ... further reducing the carbon content and adding other elements such as manganese and ... to produce pig iron in a blast furnace are iron ore, coke, sinter, and limestone. ... to float sand and

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Creating Iron HowStuffWorks

­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

More

Ironmaking 101 – From Ore to Iron with Blast Furnaces ...

Oct 10, 2017  Iron is made by reacting iron ore (iron oxide and impurities), coke (a reductant) and limestone (CaCO 3) in a blast furnace. Iron ores with lower iron content such as taconite are first processed to concentrate the iron level and drive off volatile impurities. The iron ore is dressed or crushed into 0.5-1 in. chunks, which increases surface ...

More

why coke is added to iron ore for pelletizing

Iron ore is converted into various types of iron through several processes. ... further reducing the carbon content and adding other elements such as manganese and ... to produce pig iron in a blast furnace are iron ore, coke, sinter, and limestone. ... to float sand and

More

The chemistry of steelmaking. Making iron.

What do we need to make iron? Making iron is the first step in the production of steel. Iron is usually made from iron ore, coal and limestone - although some plants around the world have developed alternative methods of iron manufacture.These newer methods require slightly different raw materials but iron ore, coal and limestone remain the starting point for most steel manufacture in the UK.

More

How does coke and coal play into steel making? - FedSteel

Jun 22, 2016  When coke is consumed it generates intense heat but little smoke, making it ideal for smelting iron and steel. Prior to the 1880’s, steel was produced using charcoal. By 1920, nearly 90% of US steel was produced using coke. Coke processes Coke is

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IRON AND STEEL - chemguide

Loss of landscape due to mining, processing and transporting the iron ore, coke and limestone. Noise and air pollution (greenhouse effect, acid rain) involved in these operations. Extracting iron from the ore. Think about: Loss of landscape due to the size of the chemical plant needed. Noise. Atmospheric pollution from the various stages of ...

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Iron (obtained from its ore by smelting)? Yahoo Answers

Jun 25, 2007  you know, the process extracting iron from iron ore using haematite, coke and limestone. They are put into the top of the blast furnace and hot air is blown in at the bottom. The question is.. The waste gases leaving the furnace are mainly... A.. Carbon dioxide and nitrogen B.. Carbon dioxide and oxygen C.. Carbon monoxide and Carbon dioxide D..

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Coke Consumption - an overview ScienceDirect Topics

The chemical composition of slag 1,7 can vary over a wide range depending on the nature of the ore, the composition of the limestone flux, the coke consumption and the kind of iron being made. It can also change over the years with alterations in the sources and types of ore being smelted. These variations affect the relative content of the four major constituents: lime, silica, alumina and ...

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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.

More

Products Made from Iron Ore - Curbsideriches101

Iron ore is primarily mined and refined through a process called smelting. Smelting is a heating process in which the Iron ore is heated along with coke (charcoal) and limestone in a blast furnace. The heating process melts the iron contained in the mixture and eliminates much of the carbon that is contained. Using variations of this process ...

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Chemistry - C10 Metals Flashcards Quizlet

The main ore of iron is hematite, which contains large amounts of iron(III)oxide. It is reduced by carbon to for iron, but this takes place in a huge blast furnace. The raw materials needed to do this are hematite, coke, limestone and air. The hematite, coke and limestone are added at the top of the furnace.

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Limestone – Its Processing and Application in Iron and ...

Jul 07, 2017  Limestone is also a very important industrial mineral. Its chemical properties make it a valuable mineral for a wide range of industrial/manufacturing uses. Limestone is also one of the vital raw materials used in production of iron and steel. Limestone, by definition, is a rock that contains at least 50 % of CaCO3 in the form of calcite by weight.

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Processes and Procedures in the Extraction of Iron ...

The extraction of iron from its ores is quite a technical process. The iron ore is first roasted in air to produce iron(III) oxide which is mixed with coke and limestone and then further heated to a very high temperature in a blast furnace. These materials are loaded into the blast furnace from the top while a blast of hot air is introduced into it from beneath via small pipes known as tuyeres.

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6: Manufacture of Iron and Steel Flashcards Quizlet

3. The tremendous heat needed to melt the coke, limestone, and iron ore is attained by a continuous blast of hot air introduced into the bottom of the furnace. 4. The coke burns first. It, in turn, melts the iron ore and limestone, and a chemical reaction takes place that produces free iron. 5.

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