Destillation

Destillation is a chemical process where a mixture made of two or more liquids with different  boiling points which can be seprate from each other.

The mixture is heated until one of the components boils and coverts into vapour. The same vapour is then fed or sent into a condenser , which cools the vapoor and changes it back into a liquid and that process is called "Distillate". What else remains in the orignal container is called the "Residue".