Patent ID: 8241507

Claim:
A method for the separation of a fluid in the liquid state comprising two liquids that are not mutually miscible, with different densities, wherein a first liquid is to be cleansed from a second liquid, said method comprising: conducting the fluid in the liquid state through a rotor where centrifugal separation of the second liquid from the first liquid takes place, and an outgoing fluid comprising the first liquid and a portion of the second liquid is then conducted into a tank, whereby the proportion of the second liquid in the outgoing fluid is reduced to less than 5%, and after centrifugal separation, the outgoing fluid is conducted through a restriction, whereby the pressure of the outgoing fluid in the liquid state is reduced, which causes portions of the second liquid in the liquid state to evaporate so that further portions of the second liquid escape in the form of a gas which is conducted away, thereby further reducing the proportion of the second liquid in the outgoing fluid in the liquid state.