If we want to obtain the solvent from a solution, then the process of distillation can be carried out. The apparatus used in this process is shown in Figure.
Water can be obtained from saltwater using this method. The solution is heated in the flask until it boils. The steam rises into the Liebig condenser, where it condenses back into the water. The salt is left behind in the flask. In hot and arid countries such as Saudi Arabia, this sort of technique is used on a much larger scale to obtain pure water for drinking. This process is carried out in a desalination plant.