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

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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What is the use of limestone of in the extraction of iron
What is the use of limestone of in the extraction of iron

Jan 09 2017 · Limestone is used in iron extraction to remove impurities from the iron and becomes molten slag The calcium carbonate CaO3 in limestone catabolically reacts forming calcium oxideCaO and carbon dioxideCO2 CaO is highly reactive when subjec

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What is the purpose of limestone in a blast furnace  Quora
What is the purpose of limestone in a blast furnace Quora

Nov 14 2017 · limestone is used to remove impurities in the furnace and the main impurity of the blast furnace is silica sand and rock which is silicon dioxide silicon dioxide is a solid at furnace temperatures so it reacts with calcium oxide from the decomp

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Why is limestone added during smelting of iron ores
Why is limestone added during smelting of iron ores

We need you to answer this question Pig iron is the intermediate product of smelting iron ore with coke usually with limestone as a flux Pig iron has a very high carbon content typically 3

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Coke Consumption  an overview  ScienceDirect Topics
Coke Consumption an overview ScienceDirect Topics

The chemical composition of slag 17 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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limestone for blast furnace
limestone for blast furnace

PigIron Production from Microsoft Encarta The basic materials used for the manufacture of pig iron are iron ore coke and lizenithne The coke is burned as a Creating Iron How Iron and Steel Work HowStuffWorks A blast furnace is charged with iron ore charcoal or coke coke is charcoal made from coal and lizenithne CaCO3

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The chemistry of steelmaking Making iron
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 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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Iron Ore Sedimentary Rock  Pictures Definition  More
Iron Ore Sedimentary Rock Pictures Definition More

What is Iron Ore Used For The primary use of iron ore is in the production of iron Most of the iron produced is then used to make steel Steel is used to make automobiles locomotives ships beams used in buildings furniture paper clips tools reinforcing rods

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The Extraction of Iron  Chemistry LibreTexts
The Extraction of Iron Chemistry LibreTexts

The function of the limestone Iron ore is not pure iron oxide it also contains an assortment of rocky material that would not melt at the temperature of the furnace and would eventually clog it up The limestone is added to convert this into slag which melts and runs to the bottom

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The Roles of Coal and Coke in Steelmaking
The Roles of Coal and Coke in Steelmaking

Jul 16 2014 · Once in the blast furnace the quality of the coke comes into play Iron is combined with steel and flux The coke plays a main role in driving off the impurities of the steel when it is being created within the blast furnace The steel flux and iron melts in

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How is Steel Produced  World Coal Association
How is Steel Produced World Coal Association

Iron making Iron ore is produced in around 30 countries – in 2017 the largest producers were Australia Brazil and China Around 98 of iron ore is used in steelmaking During the ironmaking process a blast furnace is fed with the iron ore coke and small quantities of fluxes minerals such as limestone which are used to collect

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Iron Production  Chemistry LibreTexts
Iron Production Chemistry LibreTexts

Introduction The production of iron from its ore involves a redox reaction carried out in a blast furnace The furnace is filled at the top with the iron ore oxide most commonly hematite Fe2O3 but can also magnetite Fe3O4 carbon called coke and limestone CaCO3

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How Steel Is Made  Metal Supermarkets
How Steel Is Made Metal Supermarkets

Jun 05 2015 · Iron ore coke and limestone are fed into the furnace from the top and gradually sink down towards the bottom getting hotter as they descend In the top half of the furnace gas from the burning coke releases oxygen from the iron ore In the bottom half of the furnace limestone starts to react with the impurities in the ore and coke forming a

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Iron obtained from its ore by smelting  Yahoo Answers
Iron obtained from its ore by smelting Yahoo Answers

Jun 25 2007 · Iron obtained from its ore by smelting 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

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How Steel Is Made  Metal Supermarkets
How Steel Is Made Metal Supermarkets

Jun 05 2015 · Iron ore coke and limestone are fed into the furnace from the top and gradually sink down towards the bottom getting hotter as they descend In the top half of the furnace gas from the burning coke releases oxygen from the iron ore In the bottom half of the furnace limestone starts to react with the impurities in the ore and coke forming a

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Iron obtained from its ore by smelting  Yahoo Answers
Iron obtained from its ore by smelting Yahoo Answers

Jun 25 2007 · Iron obtained from its ore by smelting 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

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Extracting iron  Redox extraction of iron and transition
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 ironIII oxide Limestone Calcium carbonate CaCO 3 Helps to remove acidic impurities from the iron by

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Lime an essential component in the steel industry
Lime an essential component in the steel industry

At the top of the furnace the iron ore in pellet form together with the coal or coke and limestone CaCO3 or quicklime CaO are introduced whilst at the bottom hot air is added with the aim of making the combustion of the coke easier this interacts to create a reducing atmosphere for the iron As we have already seen both calcium

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Iron  Essential Chemical Industry
Iron Essential Chemical Industry

The blast furnace uses either highgrade iron ore or the iron ore pellets together with coke and limestone In a modern blast furnace the mass of each component and the timing of its addition to the furnace are computercontrolled responding automatically to the conditions prevailing at

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how to do iron ore processing  Yahoo Answers
how to do iron ore processing Yahoo Answers

Mar 18 2006 · First of all the iron ore is roasted in air to produce iron 3 oxide The iron oxide is then mixed with coke and limestone and heated to a very high temperature in a blast furnace The iron oxide coke and limestone are loaded into the furnace from the top while a

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IRON AND STEEL  chemguide
IRON AND STEEL chemguide

This page looks at the use of the Blast Furnace in the extraction of iron from iron ore and the conversion of the raw iron from the furnace into various kinds of steel The common ores of iron are both iron oxides and these can be reduced to iron by heating them with carbon in the form of coke

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How is Iron extracted from its ore  Yahoo Answers
How is Iron extracted from its ore Yahoo Answers

Jun 14 2009 · Vanessa Bryant requests to keep items left by fans February 2 is special and its not just about sports Disney heiress speaks out about Kobe Bryant

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HOW A BLAST FURNACE WORKS  Foundry Gate
HOW A BLAST FURNACE WORKS Foundry Gate

and physically convert iron oxides into liquid iron called hot metal 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

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SECTION FOUR HOW IS COAL USED
SECTION FOUR HOW IS COAL USED

A blast furnace uses iron ore coke made from specialist coking coals and small quantities of limestone Some furnaces use cheaper steam coal – known as pulverised coal injection PCI – in order to save costs Iron ore is a mineral containing iron oxides Commercial ores usually have an iron content of at least 58 Iron ore is mined in

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Blast Furnace  an overview  ScienceDirect Topics
Blast Furnace an overview ScienceDirect Topics

Blast furnace gas is produced during the iron oxide reduction in blast furnace iron making in which iron ore coke and limestone are heated and melted in a blast furnace and is an indigenous process gas of the steelworks industry Pugh et al 2013

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Blast Furnaces  Science Flashcards  Quizlet
Blast Furnaces Science Flashcards Quizlet

Sinter is a mixture of coke limestone and ore created to place in the blast furnace Why is sinter used Sinter has a higher surface area than its separate ingredients so it will react faster Why is coke needed in a blast furnace The carbon monoxide then reacts with iron ore to release pure iron

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Iron in the Industrial Revolution  ThoughtCo
Iron in the Industrial Revolution ThoughtCo

Jul 26 2019 · While Britain had good iron ore reserves the iron produced was of low quality with plenty of impurities limiting its use There was plenty of demand but not much was produced as wrought iron which had many of the impurities hammered out took a long time to make and was available in cheaper imports from Scandinavia

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Blast furnace  metallurgy  Britannica
Blast furnace metallurgy Britannica

Blast furnace a vertical shaft furnace that produces liquid metals by the reaction of a flow of air introduced under pressure into the bottom of the furnace with a mixture of metallic ore coke and flux fed into the top Blast furnaces are used to produce pig iron from iron ore for subsequent

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