Unit Operation: It is the operation in which only physical changes occur, but no chemical changes
Classification of Unit operation:
1. Mechanical Operations: Transportation of materials, size reduction, screening, filtration, conveying, mixing, froth floatation
2. Electro mechanical operations: Magnetic separation, electrostatic separation, electro dialysis
3. Thermal operations: Evaporation, condensation, drying, distillation, crystallization, gas absorption etc.
Classification of Unit processes:
Different unit processes are:
1. Oxidation
2. Reduction
3. Nitration
4. Sulphonation
5. Hydration
6. Hydrogenation
7. Dehydrogenation
8. Esterification
9. Calcination
10. Pyrolysis
11. Halogenation