Extraction of Iron

(almost) pure carbon- REDUCES IRON OXIDE TO IRON METAL

takes impurities away in the form of ****

- Hot aiir is blasted in

-coke burns very quickly- carbonn dioxide is produced

-temperature rises to 1500 degrees C

- CARBON DIOXIDE (formed from burning ccoke) burns with leftover coke forming CARBON MONOXIDE

carbon dioxide + carbon = carbon monoxide

CO2    + C   =   2CO

iron oxide + carbon monoxide    →    iron + carbon dioxide

Fe₂O₃ + 3CO    →    2Fe + 3CO₂

The IRON is MOLTEN at this temperature, very dense, so it runs to the bottom of the furnace where it is tapped off.

Silicon Dioxide - sand- is removed by CALCIUM CARBONATE found in limestone.

CaCO(3) = CaCO + CO(2)

Then Calcium Silicate (****) is formed:

CaO + SiO(2)  = CaSiO(3)

Calcium Oxide +Silicone Dioxide=Calcium Sillicate

                                (****)

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