Process for separating molecules from a mixture of fluids comprising at least one fluorinated component

Process for separating a plurality of chemical components from a chemical mixture, the chemical mixture comprising a plurality of fluorinated fluids, each fluorinated fluid comprising at least one fluorinated chemical component, the process comprising:

• a step of identification in the chemical mixture of at least two sub-mixtures, each sub-mixture being a simple sub-mixture comprising a single chemical component or a complex sub-mixture comprising a combination of chemical components, each complex sub-mixture being associated either with a first secondary distillation group by a pressure swing distillation method, or with a second secondary distillation group by an extraction distillation method,
• a primary distillation step, by means of a simple main distillation column, so as to separate each identified sub-mixture,
• a secondary distillation step, by means of a same advanced unit of two auxiliary extraction columns, of each complex sub-mixture of the first group and of the second group, 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 via a predetermined solvent, by the extraction distillation method, by the same two auxiliary columns.