Linked from
The 22 pages that link to Fractional distillation, each with the reason it gives.
Coal tarRelated: Distillation separates coal tar into fractions with different boiling ranges.
William RamsayRelated: Ramsay and Travers used it to separate rare gases from liquid air.
PetroleumRelated: Refineries use it to separate crude oil into lighter and heavier fractions.
Crude oilRelated: Refineries use it to separate crude oil into boiling-range fractions.
KeroseneRelated: Kerosene is recovered from the middle-boiling fractions of crude oil.
NeonRelated: It separates neon from other gases recovered during air liquefaction.
Harold UreyRelated: Concentrating heavy water helped make deuterium’s spectral signal detectable.