The mixed vapour contains a higher concentration of the component with the lower boiling point (ethanol). It leaves the top of the column and is condensed using a condenser and a phase separation tank. Distillation is used to separate liquid mixtures made up of individual liquids that are soluble in one another. Rectification refers to distillation in a counterflow. Part of this condensate is collected in a tank as product while the rest is fed back into the column. The mixed vapour produced then moves upwards in the column. Here, on its way downwards, it undergoes further heating and material exchange with the rising mixed vapour. Ethanol/water is recommended as the liquid mixture for the. It is fed into the column. It partially evaporates on its way to the bottom of the column where it is heated to boiling. The liquid phase moves to the bottom and can be collected in two tanks. This exchange causes the vapour phase to become richer in ethanol and the liquid phase to become richer in water.
....Packed column with raschig rings
Vacuum mode possible with water jet pump
Discontinuous rectification with packed and sieve tray column
All tanks made of duran glass and stainless steel
Adjustment of reflux ratio using valves
Electrically heated evaporator
Tank for top product
Interchangeable columns
Sieve tray column with 8 trays
Condenser and phase separation tank for top product.