0
Smelting is a major industrial process, known of from early times. It involves the recovery of metal (say) from its ore, using perhaps coke , high grade coal, or charcoal. Done in an oxidizing atmosphere to remove as much impurity as possible, and accompanied by a flux material such as limestone. The flux reacts with many of the impurities and becomes a waste material.
Today, electric arc furnaces are often used to smelt iron and other metals.
Wiki User
∙ 12y ago
Wiki User
∙ 14y agoExtraction of Iron is done in many steps like oxidation, combustion, fusion, reduction, etc. During extraction cast iron is formed first which is then converted to wrought iron. Hematite is the ore that is used for extraction of cast iron. The ore is crushed into small pieces and is washed with water to remove the sand particles. Then the washed ore is heated in the presence of air. This process removes the moisture and is called as calcination. In this process, sulphur and phosphorus forms oxides. Carbonate forms oxide and ferrous oxide converts into ferric oxide.
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 CO2 reduces to CO in presence of coke.The limestone subjected into the furnace decomposes and produce CaO. This CaO later combines with silica and forms slag.
Molten stag formed is lighter and is removed out by the outlet produced for it. All the above reactions takes place from the bottom to the middle region of the furnace. Only the reduction of oxides of iron to iron is done at the top of the furnace.Thus, the iron that is formed melts and moves down to the base of the furnace. This is called as cast iron. This cast iron is again heated with hematite to remove the impurities.
Thus, wrought iron which is the purest form of iron is formed.
Wiki User
∙ 9y agoOre from the ground is a raw mix of metals and other substances. Smelting is a process that heats and melts ore, separating impurities from metals within the ore so the metals can be used. To smelt ores, first you crush the limestone ore and coke (baked coal) and mix it all together. Then you put it in the heat furnace and it will separate the pure metals and the other substances. Note: The kind of furnace uses extremely high temperatures.
Wiki User
∙ 9y agosimilar to the melting process but is used to preserve all useful material
Wiki User
∙ 17y agoSee web link for process information.
Wiki User
∙ 13y agomeld steel
Add your answer:
Earn +20 pts
What is the difference between Sponge iron and pig iron and their application?
pig iron is intermediate product of smelting of iron ore sponge iron is product of direct reduction of iron ore in solid state
The processes of extracting and processing iron ore?
The blast furnace is the first step in extracting iron ore, this process produces pig iron. Pig iron has limited uses as is, so is shipped to steel mills for continued refinement.
Is iron ore a mixture or a compound?
Iron ore is a mixture.
What is the impurity difference between pig iron and cast iron?
http://encarta.msn.com/encyclopedia_761559225/iron_and_steel_manufacture.html Provides the answer. basic summary: 1. Pig Iron and Sponge Iron are the result of different production processes 2. Which results in different purities. Pig Iron has a lower purity than Sponge Iron.
What mass of iron ore in kilograms will contain 15.64 grams of iron if the ore contains 0.257 iron by mass?
The mass of iron ore is 6,085 kg.
What is the difference between Sponge iron and pig iron and their application?
pig iron is intermediate product of smelting of iron ore sponge iron is product of direct reduction of iron ore in solid state
What are the uses iron ore?
Iron Ore is an Iron Compound. Iron ore is usually used to make pig iron(metallic iron), cast iron, corrugated iron structural sheeting, and wrought iron.
What is the production of iron ore?
Steel
What are the uses of iron ore?
Iron Ore is an Iron Compound. Iron ore is usually used to make pig iron(metallic iron), cast iron, corrugated iron structural sheeting, and wrought iron.
Why is it NECESSARY to blend iron ore at various stages of production?
What is stand for FSHT in iron ore blending
The processes of extracting and processing iron ore?
The blast furnace is the first step in extracting iron ore, this process produces pig iron. Pig iron has limited uses as is, so is shipped to steel mills for continued refinement.
Pig iron is produced by heating the coke iron and limestone in a what?
Pig iron is produced when heating * Iron ORE (not iron as the question says!) * Coke * limestone in a Blast Furnace.
The production of cast iron from its ore is an example of?
electorloysis
How is iron recovered from its ore?
How do we get iron from its ore? Heat. Lots of heat. We use a blast furnace to smelt the ore and get pig iron. Further processing yields cast iron or steel. Use the link below to get the scoop.
What quantities of Iron Ore Coke Limestone air and water in a ton of pig iron?
cake is good
The center of pig iron production in the South was?
Alabama
Where does pig iron comes from?
Where does Pig Iron come from? 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 3.5-4.5%,[1] which makes it very brittle and not useful directly as a material except for limited applications.
