Decantation n. : The act of pouring off a clear liquor gently from its lees or sediment, or from one vessel into another.

Example:
What is a situation where a) distillation and b) Decantation is helpful?

Taxonomy
Decantation, container, free encyclopedia, liquid, small amount, red wine, precipitate, liquid layer, immiscible liquid, search, decanting, grammar, cohesion, tone, spelling, sediments, olive oil, crystals.

Defination from the web:
Decantation is a process for the separation of mixtures, carefully pouring a solution from a container in order to leave the precipitate ... of kerosene and water can be separated through decantation. In other words we can say that Decantation is a process by which a liquid layer can ...