Extracting copper, lead and zinc

Malachite (copper carbonate)

over 200 degree celcius

Copper + Carbon dioxide

Electrolysis

Galena (lead sulfide) + oil (because lead is dense) + water + carbon

-

Lead + sulfur dioxide + carbon dioxide

Froth flottation

Sphalerite (zinc sulfide) + water + carbon

-

zinc + carbon dioxide

froth flottation

-the process of metal extraction is inefficient.

theoretical amount = amount of ore x % purity

yield = actual amount produced / theoretical amount x100%