what is limestone used for when extracting iron

EXTRACTION OF IRON - City Collegiate

The process of the extraction of iron is carried out by the following steps: Concentration of ore Calcination or Roasting of ore Reduction of ore : Concentration of ore: In this metallurgical operation, the ore is concentrated by removing impurities like soil etc. …

How Is Limestone extracted? | Yahoo Answers

Sep 28, 2007· To extract limestone, limestone quarry equipment is necessary. Mineral ore and stone quarrying equipment is widely used in quarrying plant. A quarrying processing plant normally begins with crushing plant, and then is grinding plant which is make quarrying material with further use.

3 - Extracting Iron - IGCSE Chemistry - Google

5.4 describe and explain the main reactions involved in the extraction of iron from iron ore ... almost pure Carbon) and Limestone (Calcium Carbonate). Hot air is blasted in from the side to provide Oxygen that allows some of the Carbon to burn, ... 3 - Extracting Iron ...

Iron Ore Smelting Process - Brighthub 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 ...

What Is Limestone Used For When Extracting Iron

Agram Process Extracting The Iron From Its Ore. what equipment is used to extract iron ore - BINQ Mining. what machines are used to extract iron ore | Clinker Grinding Mill. what machines are used to extract iron ore.A full line of crushing equipment and grinding machine for use in processing quarried stone, rocks, aggregate, limestone .

Why is limestone used in the iron extraction process ...

Jun 11, 2009· limestone used as a flux which is used to remove impurities (such as silica (SiO2)) in the ore to forms a slag which melts and collects above the iron at the bottom of the furnace. if the impurities not removed, it would clog the furnace.

process used to extract limestone - allstartheatre.co.za

process used to extract limestone. iron and steel – chemguide: helping you to understand Chemistry The function of the limestone.Iron ore isn't pure iron Steel-making: the basic oxygen process limestone extraction process - process to extract limestone - keslerconstruction.com.

Extraction of Iron | Metallurgy | Blast Furnace and Reactions

This concentrated ore is mixed with limestone (CaCO 3) and Coke and fed into the blast furnace from the top. It is in the blast furnace that extraction of iron occurs. The extraction of iron from its ore is a long and subdued process, that helps in separating the useful components from the waste materials such as slag. What happens in the Blast ...

The Blast Furnace | S-cool, the revision website

How to extract iron from its ore The method Three substances are needed to enable to extraction of iron from its ore. The combined mixture is called the charge: Iron ore, haematite - often contains sand with iron oxide, Fe2O3. Limestone (calcium carbonate). Coke - mainly carbon. The charge is placed a giant chimney called a blast furnace. The blast furnace is around 30 metres high and lined ...

GCSE CHEMISTRY - Extraction of Iron - Haematite ...

Extraction of Metals. Extraction of Iron.. Iron is extracted from its ore in the blast furnace.. The main iron ore is called haematite. Haematite is iron(III) oxide - Fe 2 O 3. The iron ore contains impurities, mainly silica (silicon dioxide). Limestone (calcium carbonate) is added to the iron ore which reacts with the silica to form molten calcium silicate in the blast furnace.

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 ...

How Is Iron Extracted From the Earth? | Reference.com

Iron ores in the form of hematite (ferrous oxide) and magnetite are removed from the earth through mining. The use of heavy mining equipment is necessary to dig out large pits in an area with a large deposit of iron ore; however, because iron does not occur naturally, it is necessary to use a blast furnace to separate or refine iron from the other substances in the iron ore.

what machines are used to extract iron ore

machine used to extract iron from iron ore. Dec 29, 2017· How iron is made - material, manufacture, making, history, used . Before iron ore can be used in a blast furnace, it must be extracted from the by heavy machines, often over a very large area, to expose the ore beneath.

GCSE CHEMISTRY - Extraction of Iron in the Blast Furnace ...

Extraction of Metals. Extraction of Iron.. Chemistry of the blast furnace ().. Limestone is calcium carbonate (CaCO 3) and it is added to the blast furnace to remove the impurities in the iron ore. Calcium carbonate is decomposed by heat in the furnace to give calcium oxide and carbon dioxide. This is called thermal decomposition (see examples of other carbonates). ...

How iron is made - material, manufacture, making, history ...

The raw materials used to produce pig iron in a blast furnace are iron ore, coke, sinter, and limestone. Iron ores are mainly iron oxides and include magnetite, hematite, limonite, and many other rocks. The iron content of these ores ranges from 70% down to 20% or less.

Electrochemistry and Metal Extraction - sciencequiz.net

Electrochemistry and Metal Extraction Multiple Choice Quiz. ... A blast furnace may be used in the extraction of iron from iron ore. ... Limestone. Hot air. Haematite. Cryolite. Aluminium oxide. Check; A blast furnace may be used in the extraction of iron from iron ore. What is the principal reducing agent in the blast furnace? ?

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

Jan 08, 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 oxide(CaO) and carbon dioxide(CO2). CaO is highly reactive when subjec...

Extracting iron - bbc.com

The method used to extract metals depends on the reactivity of the metal. Metals are used for a variety of purposes. An alloy is a mixture of a metal and another element.

role of coke in extraction of iron - igogreenfoundation.org

use of limestone in iron extraction crusherasia. extraction 0f vanadium, titanium from iron ore extraction and uses of titanium Iron ore and coke and limestone are added to the top, and iron and Get More Info. Get Price (i) Name the method of refining of metals such as .

How Is Limestone extracted? | Yahoo Answers

Sep 29, 2007· To extract limestone, limestone quarry equipment is necessary. Mineral ore and stone quarrying equipment is widely used in quarrying plant. A quarrying processing plant normally begins with crushing plant, and then is grinding plant which is make quarrying material with further use.

Limestone extraction | SOLANCIS

Extraction Limestone mining is done out in the open. Once studies show the existence of stone at the site, the extraction is made by separating the rock in quarry benches and dividing it into blocks. Before beginning the quarrying process, a resource analysis is made.