May 29, 2012· 2 Iron and aluminium are two important metals extracted from their ores on a large scale. (a) In the extraction of iron, three different raw materials are put into the top of a blast furnace. Name the main compound present in the following raw materials. (i) Haematite (1)

(Extraction of Iron in a Blast Furnace: Step 1 and Step 2) Coke reacts with oxygen from the air to form carbon dioxide and a lot of heat. ... A blast furnace is used to extract iron from its ore ...

May 16, 2019· Modern steelmaking can be broken down into six steps: Ironmaking, which is the first step, involves the raw inputs of iron ore, coke, and lime being melted in a blast furnace. The resulting molten iron, also referred to as hot metal, still contains 4 .

An iron ore blast furnace is a typical example of a shaft furnace. Muffle Furnace This type of furnace is used when the material being heated should not be contaminated by the heating fuel. This is accomplished by enclosing the material in a chamber, with the fuel burned outside of the chamber, as shown in Figure 2 Hearth Furnace

The process of extracting iron involves a number of steps. The first step to concentrate the iron ore and remove its contents of silica. To further remove any existing impurities, a complex process takes place in a blast furnace. The charge is where materials are placed into the blast furnace. These materials are: Ore, Limestone and Coke.

Extraction of Iron in a Blast Furnace – The Department of .. Extraction of Iron in a Blast Furnace The significant reactions occuring within the Blast Furnace can be described via the following steps showing how the reducing .. »More detailed.

The iron from blast furnace contains about 4% carbon and one to two percent other impurities like Mn, Si, S and P. It is called pig iron. Pig iron is remelted and cast into moulds, this is known as cast iron. Wrought Iron This is the purest form of iron. it is obtained by oxidising the impurities of cast iron by heating with haematite.

•Haematite contains iron (III) oxide mixed with impurities such as sand and clay. •Iron is extracted from haematite in a blast furnace. Blasts of hot air are blown into the furnace near the bottom. limestone (calcium carbonate) are added at the topof the blast furnace.

The purpose of a blast furnace is to reduce and convert iron oxides into liquid iron called "hot metal". The blast furnace is a huge, steel stack lined with refractory brick. Iron ore, coke and limestone are put into the top, and preheated air is blown into the bottom.

Extraction of Iron in a Blast Furnace The significant reactions occuring within the Blast Furnace can be described via the following steps showing how the reducing agent varies depending on the height in the furnace ( on the Temperature).

Iron and Steelmaking (Study Support) Prof. Ing. Jiří Bažan, CSc. Doc. Ing. Ján Kret, CSc. Ostrava, 2015. Title: Iron and Steelmaking ... Composition of a charge in the production of pig iron in a blast furnace Agglomeration and pelletization of iron ores Requirements to individual components of a blast furnace charge Time for the ...

Extraction of Iron. The purpose of a Blast Furnace is to reduce the concentrated ore chemically to its liquid metal state. A Blast furnace is a gigantic, steel stack lined with refractory brick where the concentrated iron ore, coke, and limestone are dumped from the top, and a blast of hot air is .

Iron does not exist on the Earth as an element, but rather in the form of its oxides and sulphides in iron ore. They are the starting materials for the technical extraction of pig iron in the blast furnace. The blast furnace operates at 1900 °C in order to smelt iron from iron ore.

The production of iron from its ore involves an oxidationreduction reaction carried out in a blast furnace. Iron ore is usually a mixture of iron and vast quantities of impurities such as sand and clay referred to as gangue. The iron found in iron ores are found in the form of iron oxides.

Blast Furnace The Extraction of Iron. Blast Furnace The Extraction of Iron. Visit. Discover ideas about Metal Chemistry. Pig Iron, iron and steel Learn how the blast furnace converts raw iron ore and separates your pig iron and slag. With just coke and air and time. Metal Chemistry ...

A Carbon dioxide is a waste product in the extraction of iron. B Carbon monoxide is a reducing agent. C The extraction of iron from hematite involves reduction. D When iron is converted into steel, oxygen is used to oxidise the iron. 12 The Basic Oxygen Process converts iron into steel. In step 1, oxygen is blown into impure molten iron.

Examstyle Questions: Extraction of Metals ... The following questions are about the blast furnace and the production of iron. a) Why are hot blasts of air blown in to the blast furnace? (1 mark) b) Why is limestone added to the blast furnace? (1 mark) c) Railway lines are welded together using molten iron.

Titanium extraction ... (A Blast Furnace produces about 10 000 tonnes of iron in a day.) 4. Explain why titanium is an expensive metal. ... The Kroll process is a twostep process. Will the atom economy of the whole process be higher, lower or the same as the value you

To make steel, iron ore is first mined from the ground. It is then smelted in blast furnaces where the impurities are removed and carbon is added. In fact, a very simple definition of steel is "iron alloyed with carbon, usually less than 1%." The following text is taken from the Structural Manual For Ironworkers Manual VVolume I.

Jul 21, 2014· Uses of iron made by blast furnace. Blast furnace iron is not very pure (96% iron, 4% impurities). The impurities make it brittle (cracks easily when bent) and so it has limited uses. Most of the iron produced is converted into steels. Steels are alloys, that are carefully controlled mixtures of iron, carbon and other elements.

Jan 02, 2018· Blast furnace is used in the extraction of iron, which is made of steel lined with bricks. The ore, coke and limestone are sent into this furnace from top. The furnace has an inlet for hot air and two outlets for slag and molten iron. The coke that is sent in burns and produces carbon dioxide. This CO 2 reduces to CO in presence of coke.

Mar 07, 2010· During the extraction of iron, the reduction of iron oxides takes place in a blast furnace. In this process, hot air is blown from the bottom of the furnace and coke is burnt to raise the temperature up to 2200 K in the lower portion itself.

Extracting iron from iron ore using a Blast Furnace. Introduction. 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. Coke is produced by heating coal in the absence of air.

Raw Materials. 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.