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

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In a blast furnace why are the coke and limestone needed

Jul 07, 2009 coke acts as a reducing agent. CO which in turn reacts with iron ore to give metallic Iron. Carbon present in coke also produces heat in all oxidation reactions which melts down the …

How does coke fit into the steelmaking process

Jan 03, 2015 Steelmaking. 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 …

Creating Iron HowStuffWorks

Apr 01, 2000 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. Liquid iron collects at the bottom of the blast furnace, underneath a layer of slag.

Why Use Coke for Blast Furnace Ironmaking not Use Coal

Oct 06, 2019 The high-temperature CO2 gas reacts with the carbon in the coke to form CO, and the CO further reduces the iron ore to form molten iron. Carbon supply: The carbon content of pig iron is about 4%, all from blast furnace coke, accounting for 7%-9% of coke carbon content.

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 ...

Effect of adding limestone on the metallurgical properties

Aug 10, 2015 In general, the main types of pellets for the purposes of making iron are acid, basic and fluxed. In order to produce high-quality pellets, certain additives are important. The most common fluxing materials for iron ore pellet production are limestone (CaCO 3), dolomite (Ca,Mg(CO 3) 2) and olivine (Mg 2 SiO 4), but sometimes magnesite (MgCO 3 ...

why is coke added to the blast furnace Canadian Horizons

Dec 01, 2020 Why Use Coke for Blast Furnace Ironmaking not Use Coal Directly? (1 mark) b) Why is limestone added to the 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.

Coal to Make Coke and Steel Kentucky Geological Survey

Sep 24, 2019 Coke is a porous, carbon-rich material used to make steel. 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 ...

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 …

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.

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 …

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.

World Iron Ore Supplier Saria's Home Facebook

This Iron is called Pig Iron and is used to make Cast Iron. The Charge. The Charge consists of 3 parts : Iron Ore Coke Limestone Iron Ore. The Iron Ore is first mined and then brought to the Blast Furnace. It contains impurities which have to be removed. Haematite (Hematite) …

Metallurgical Coke an overview ScienceDirect Topics

Metallurgical coke is an important raw material for pig iron production in the blast furnace. During this process the coke undergoes severe mechanical, thermal and chemical stresses. One of these is the CO2 -gasification which may lead to a decisive mechanical weakening of the lump coke …


As the mixture of iron ore, coke and limestone heats, the hot waste gases are collected and cleansed. They are then used to help heat the air blast, required if blast furnace is to reach the high temperatures needed to produce molten iron. The stock level is constantly ‘topped up’.

Blast Furnace Reactions Chemistry Maths Tutor

May 13, 2020 Coke, limestone flux, and iron ore (iron oxide) are charged into the top of the furnace in a precise filling order which helps control gas flow and the chemical reactions inside the furnace. Four “uptakes” allow the hot, dirty gas high in carbon monoxide content to exit the furnace throat, while “bleeder valves” protect the top of the ...

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).

The Step by Step Process of Producing Iron from Iron Ore

Oct 23, 2017 The Step-by-Step Process of Producing Iron from Iron Ore. Some 3000-4000 years ago, the ancient Egyptians derived iron from the fallen meteorites (or so they say), carved them and made tools and equipment besides jewelry. We have come a long way since then. Now, first of all, pure iron is rarely available (except if one or two meteorites crash).

Iron Ore Materials and Coke Quality Characteristics and

Jan 01, 2013 Reducibility is an ability of iron ore material to give oxygen from ferrous oxide to reducing gas with greater or smaller velocity. Its role increases as the blast furnace improving and the coke consumption decreasing. The reducibility of the iron ore materials is defined in accordance with Russian Federation State Standard 17212 84.

Iron Ore Pelletizing Process An Overview IntechOpen

Jul 11, 2018 The iron ore production has significantly expanded in recent years, owing to increasing steel demands in developing countries. However, the content of iron in ore deposits has deteriorated and low-grade iron ore has been processed. The fines resulting from the concentration process must be agglomerated for use in iron and steelmaking. This chapter shows the status of the pelletizing …

carbon monoxide coke iron ore limestone slag i Which

carbon monoxide coke iron ore limestone slag i Which substance is a mineral. Carbon monoxide coke iron ore limestone slag i which. School Al Nahda National Schools; Course Title CHEM 101; Uploaded By rumanaazmi. Pages 45 This preview shows page 42 - 45 out of 45 pages.

A Detailed Look at Iron Ore Agglomeration FEECO

And while we’ve worked with hundreds of materials over the years, one that we frequently see in the FEECO Innovation Center is iron ore. Iron ore is a central mineral used in the steel industry. Despite its widespread use, testing is often done to create a valuable end-product that meets industry standards.

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 …

23.3 Metallurgy of Iron and Steel Chemistry LibreTexts

Aug 25, 2020 Originally, the iron was collected in pools called pigs, which is the origin of the name pig iron. Figure 23.3. 1: A Blast Furnace for Converting Iron Oxides to Iron Metal. (a) The furnace is charged with alternating layers of iron ore (largely Fe2O3) and a mixture of coke (C) and limestone (CaCO3). Blasting hot air into the mixture from the ...

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