Extraction Of Metals Iron printable pdf download

Extraction Of Metals Iron

C h e m g u i d e – q u e s t i o n s

EXTRACTION OF METALS: IRON

It is difficult to ask anything about this which doesn't insult your intelligence! If you are doing a

course for 16 – 18 year old chemistry students, you have almost certainly come across it all in detail

years ago. My apologies!

1. The diagram shows the Blast Furnace for the extraction of iron from its ore, taken as haematite.

Write the equation(s) for each of the following reactions:

a) the formation of carbon monoxide in the furnace;

b) two reactions in which haematite is reduced to iron;

c) the function of the limestone in the furnace.

2. Most of the iron emerging from the furnace is converted into steel, which involves the removal of

elements like sulphur, carbon, phosphorus and silicon. The basic oxygen process does this in two

stages.

a) Describe briefly how sulphur is removed in the first stage.

b) Describe briefly how the other elements are removed in the second stage, making clear what

happens to the carbon, phosphorus and silicon present in the impure iron.

Extraction Of Metals Iron