0
Ninety percent of all mining of metallic ores is for the extraction of iron. Industrially, iron production involves iron ores, principally hematite (nominally Fe2O3) and magnetite (Fe3O4) in a carbothermic reaction (reduction with carbon) in a blast furnace at temperatures of about 2000 °C. In a blast furnace, iron ore, carbon in the form of coke, and a flux such as limestone (which is used to remove silicon dioxide impurities in the ore which would otherwise clog the furnace with solid material) are fed into the top of the furnace, while a massive blast of heated air, about 4 tons per ton of iron, is forced into the furnace at the bottom.
In the furnace, the coke reacts with oxygen in the air blast to produce carbon monoxide:
2 C + O2 → 2 CO
The carbon monoxide reduces the iron ore (in the chemical equation below, hematite) to molten iron, becoming carbon dioxide in the process:Fe2O3 + 3 CO → 2 Fe + 3 CO2
Ansewr: Heat and CO2 Carbon dioxide
Add your answer:
Earn +20 pts
What happens to the melting and boiling point of a substance if it contains impurity?
If the impurity has a higher boiling point then the boiling point of the mixture will also be slightly higher, and vice versa.
What happened when impurity is added in phenol water system?
the critical solution temperature for phenol water system increases
How is chitosan extraction from shelfish?
chitosan is a polymer chitosan is a polymer
Does iron have definite shape and a definite volume?
When iron is a liquid, it does not. Solid iron, however, does.
What types of iron is there?
pig iron, wrought iron and cast iron. These are broad classifications used commercially, they can be subclassified. Chemically we say that its pure or impure, contains sulphur/phosphorous/impurities(slag, etc.)/carbon in so and so % range
How are amethyst and quatz different?
Amethyst is quartz that contains an impurity that imparts the purple color. The impurity in amethyst is iron.
What is an impurity found in the iron produced in the blast furnance?
Slag
Does iron contain calcium?
Calcium exist only in some iron alloys as an insignificant impurity.
What is the biggest industry in Indonesia?
The biggest industry in Indonesia is oil extraction.
Why is there an Iron chloride impurity in chromatography experiment?
Iron chloride impurity may arise in chromatography due to its presence in the sample or from contamination in the solvent or column material. It can cause interference with the separation process and lead to inaccurate results. Proper precautions should be taken to minimize the presence of impurities in chromatography experiments.
What are the impuritys in pig iron?
The main impurities in pig are carbon (C) and Silicon (Si)
How many types of iron and their compositions?
pig iron or cast iron having 4.5% carbon as an impurity wroght iron having 0.15% of carbon steel having 1% carbon
What is the word equation for the extraction of iron from the ore iron oxide?
Iron oxide + carbon monoxide -> iron + carbon dioxide
Why aluminum is not used as the reducing agent in iron extraction?
Aluminum is not used as the reducing agent in iron extraction because it has a higher reduction potential than iron, meaning it is not able to reduce iron oxide to elemental iron. Carbon, on the other hand, has a lower reduction potential than iron and is commonly used as the reducing agent in the extraction of iron.
What raw materials in the extraction of iron?
The raw materials used in the extraction of iron are iron ore, coke (made from coal), and limestone. Iron ore is the primary source of iron, while coke is used as a reducing agent and fuel, and limestone helps to remove impurities from the iron ore during the smelting process.
What is the biggest safety hazard in an extraction experiment?
Solvent vapor and possible toxics.
What is the large vessel in which the extraction of iron by carbon reduction is carried out?
Blast Furnace
