How do they chemically make pure oxygen?

Answer 1

Iron is an element. It isn't "made".

Iron is obtained by digging iron ore out of the ground (mining) and processing it to separate the iron from oxygen, sulfur and other elements to which it had become chemically bound over the millennia.

According to modern astronomy, cosmology, and physics, iron, like all naturally occurring elements, is made in stars, from the fusion of smaller elements. Fred Hoyle proposed what's called 'nucleogenesis', or formation of elements in the stars. Hydrogen plus Hydrogen makes Helium; then on to Lithium, Carbon, Nitrogen, etc. Iron is the last element a 'normal' star can make. All elements heavier than Iron are made in the explosion of a supernova.

Answer 2

to make pure iron you need the following:

iron ore= The iron ore has impurities in it so you will need to get rid of them by heating it up and getting it in it's molten stage.

Fuel=coke from coal

crushed limestone= you will need a Flux (crushed limestone). The Flux attracts the impurities of the iron ore

Mix all together and heat up until you liquidize the substances. What you will have is a pot of pure iron at the bottom and a substance called Slag at the top. The slag is a combination of the impurities and limestone. The slag is also an aggregate for lightweight concrete and also has a better fire rating than a regular concrete block.

Answer 3

They make pure oxygen this way: they take over 30% hydrogen peroxide and put it in a jar that contains manganese dioxide. This will make pure oxygen and water. It is possible to take pure water and by electrolysis of this water, we can recover hydrogen and oxygen. It is fairly simple and easy, and it doesn't require exotic technology or a great deal of expense.

Answer 4

there are many ways of steel making the oldest method is the one given below

haematite Fe2O3 and magnetite Fe3O4 are two important iron oxide ores.

these ores purified by preliminary processes.

now the iron oxides have to be reduced chemically in order to remove oxygen from the ore.

this chemical reduction is carried out in a huge blast furnace 'the ore',limestone,coke,scrap metals are added.

limestone removes the impurities by the formation of slag which can be tapped separately.

coke supplies the carbon for the reduction process as well as the necessary heat to melt the ore.

air supplied gives the necessary oxygen for the combustion reaction or the reduction reaction.

the production reducing gases:

C(coke) + O2 = CO2

CO2 + C(excess coke) = 2CO

the reduction reaction are:

Fe2O3 + 3C = 2Fe + 3CO2

Fe2O3 + 3CO = 2Fe + 3CO2

thus the chemical reagents that change the iron oxide to metallic iron are carbon monoxide and carbon from the coke .

now the result is pig iron with almost 5% carbon in it.

but steel is an alloy of carbon with 0.06% - 2% carbon in it. so now we have to reduce the carbon to make steel.this can be done by the age old bessemer converter.

we eradicated oxygen by adding carbon. now we can reduce carbon levels by adding oxygen.

it involves three stages.

1 the blowing period :

in this period the pig iron is blasted with air at 2 to 2.5 ATM pressure.the blast oxidizes the iron, silicon and manganese. these reactions raise the temperature of the converter to 1250 c to 1500 c

second stage or the brilliant flame blowing period:

in this period the carbon is oxidised by ferrous oxide at high temperatures which produces carbon monoxide. this burns in white flame.

the third stage or the reddish smoke period :

in this period the flame burning drops signifying the loss of carbon. now the steel could be poured in ingots.

Answer 5

Cast Iron is purified in a Basic Oxygen Process Furnace, which blows high pressure pure oxygen through the molten metal, burning off the excess carbon of the Cast Iron. Normally they stop leaving some dissolved carbon in the iron so they can make steel. However one could run these furnaces a bit longer than normal, burn off all the carbon, and get pure iron. A Bessemer Furnace could do almost the same thing, but it blows high pressure ordinary air through the metal. Both furnaces are very polluting as they also burn off some iron, making giant dense red "rust" clouds that roll across the ground for tens of miles from the steel mill doing significant property damage, especially to paint.

Answer 6

you melt the iron down and remove it's impurities (eg. carbon,alloys etc.)

FeO + Heat = Fe + Co2

then you are left with the iron atoms

Answer 7

By reducing it in a hydrogen atmosphere under heat.

Answer 8

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process of making iron is ,we have to give a message to a iron producing factory to make an iron

Answer 9

Iron is not made of any chemical compounds. Iron is an element, so it is made up of nothing but iron atoms.