Copper matte is a molten mixture of
Cu2S + little FeS
Cu2S + little FeO
Cu2O + little FeO
Cu2O + little FeS
The smelt formed in blast furnace contains Cu2S and a little FeS. This mixture is called copper matte.
Oh! We are nearly there. You can almost smell copper. Molten Copper Matte is then transferred to a Bessemer converter where it undergoes___reduction