METHOD FOR SEPARATING MOLECULES FROM A FLUID MIXTURE COMPRISING AT LEAST ONE FLUORINATED COMPONENT

Disclosed is a method for separating a plurality of chemical components from a chemical mixture comprising a plurality of fluorinated fluids, the method comprising: * a step of identifying, in the chemical mixture, at least two sub-mixtures, each complex sub-mixture being associated either with a first group for secondary pressure swing distillation or with a second group (G2) for secondary extractive distillation, * a step of primary distillation, using a main column, so as to separate each identified sub-mixture, * a secondary distillation step, using the same advanced unit of two auxiliary columns, for distilling each complex sub-mixture, the complex sub-mixtures of the first group being separated by the pressure swing distillation method and the complex sub-mixtures of the second group being separated by the extractive distillation method.