Extraction of Metals Notes
Ore- A natural substance that a metal can be economically extracted from.
- Sulifde ore is converted into Sulfur oxide by being roated in air.
- Sulfur dioxide causes acid rain.
Zinc can be found as a sulfide.
2ZnS + 3O2 ------> 2ZnO + 2SO2
By converting sulfur dioxide to sulfuric acid a pollutant is avoided and a valuable product is made – sulphuric acid is in demand because it’s used in many chemical and manufacturing processes.
Iron, Manganese and Copper (Equations and Conditions):
2Fe2O3 + 3C ------> 4Fe + 3CO2
Fe2O3 + 3CO -------> 2Fe + 3CO2
700 degrees in a blast furnance.
MnO2 + C --------> Mn + CO2
MnO2 + 2CO --------> Mn + 2CO2
This needs higher temperatures than iron(III) oxide - about 1200 degrees.
2CuCO3 + C --------> Cu + 3CO2
CuCO3 + CuO --------> …