Definitions for "Fractional distillation"
the separation of the components of a liquid solution by successive distillations in which the vapor becomes richer in more volatile component and the residue richer in the less volatile component
A purification process where the raw monomer is heated to a precise, temperature controlled, constant boiling mixture. Then the vapor (gas) from this boiling mixture is cooled and transfered to the distillation column at an exact, specific temperature. The purpose is to remove any chemical impurities from the monomer.
the separation of a mixture of volatile substances into its components through differences in boiling points. (see distillation, fraction)