Answer:
Distillation
Step-by-step explanation:
The most most widely used industrial separation operation is Distillation. There are different tipes of distillations can be simple or multiple and also azeotropic or flash. The method is based in the difference of the boiling points between the components that we want to separate from a mixture. It is used in all kind of industries and processes for example in the petroleum industry to separate the different fractions of crude oil, in the chemical industry to separate a component of interest after a chemical reaction and for the separation of gases, as in the production of oxygen and nitrogen from air.