Fractional Distillation

Fractional Distillation:

 Using a fractionating column DISTILLATION to separate a liquid mixture into component parts that have different boiling points. When a mixture of liquids is boiled, the vapor will be richer in the component with the lower boiling point, but it will

still be a mixture. By successive  CONDENSATION and revaporization steps (usually in a column called a fractionating

column), the vapor becomes increasingly rich in the lower-boiling component and can eventually be collected in pure form.