-Big lumps of ore are crushed with jaw crushes and pulverized with ball mill.
-As Copper pyrite is sulphur containing ore so Froth floatation process is used to increase the concentration up to where sulphide ores come to surface along with froth.
- Among these two roasting process is used because it is sulphide ore.
-The roasted ore is mixed with sand and coke and smelted on blast furnace which is high and diameter, The oxidation of , which started on step 2, goes on further reaction:
-Matte contains about Copper.
-Production of metallic copper-blister from matte.
- on matte on oxidation to , finally reacts with to give slag.
-Slag is removed, is oxidized to and finally to blister copper.
-:- Blister of Copper. Contain about impurities of etc.
-To remove those impurities following method may be used.
-Molten blister copper is stirred by green wood poles where is released and acts as reducing agent.
-The poled/ refined copper is pure.