Types of distillation and Definitions

• Distillation: The function of distillation to separate, by vaporization, a liquid of miscible and volatile substance into its individual component or, in some cases into group of components.

Types of distillation :-

1. Simple Distillation

2.  Flash Distillation

3. Azeotropic Distillation

4. Extractive Distillation

5. Short path Distillation

6. Vacuum Distillation

• Simple Distillation:- In this type of Distillation we provide energy to given mixture of solvent or product to get temperature at which it boil and then the vapour will condensed and we get our product.

•  Flash Distillation: Flash is a single stage    separation technique. A liquid mixture feed is pumped through a heater to raise the temperature and enthalpy of the mixture. It then flows through a valve and the pressure is reduced, causing the liquid to partially vaporize. Once the mixture enters a big enough volume, the liquid and vapor separate.

• Azeotropic Distillation: A third component component some times called and entrainer may be added to the binary mixture to form an new low-boiling azeotrope with one of the original constituent, whose volatility is such that it can easily be seperated from the other original constituent.

• Extractive Distillation: A third component, termed as a solvent, is added which alters the relative volatility of the original constituent and thus permitting the separation.  

• Vacuum Distillation:- In this type of Distillation we provide vacuum during distillation.Due to Vacuum boiling point of our material will. Decrease and we get vapour at less temperature.