the separation of volatile components of different boiling points in a mixture by the gradual increase of temperature and the separate collection of each component.
the process of separating the constituents of a liquid mixture by heating it and condensing separately the components according to their different boiling points
a distillation in which the vapour is brought into contact with a countercurrent of condensed liquid to increase the purity of the final products
A process by which a chemical compound is separated into components by distillation. In fractional distillation the compound is heated and, as each of its constituent components comes to a boil, its vapors are separated and cooled, so it can be removed in its pure form. Fractional distillation is used to refine petroleum. See also distillation.
[frak-shuh-nl-ahyz] /ˈfræk ʃə nlˌaɪz/ verb (used with or without object), fractionalized, fractionalizing. 1. to divide or splinter into fractions, sections, factions, etc.
[frak-shuh-nl] /ˈfræk ʃə nl/ adjective 1. pertaining to ; comprising a part or the parts of a unit; constituting a : fractional numbers. 2. comparatively small; inconsiderable or insignificant: The profit on the deal was fractional. 3. Chemistry. of or noting a process, as distillation, crystallization, or oxidation, by which the component substances of a […]
[frak-shuh-neyt] /ˈfræk ʃəˌneɪt/ verb (used with object), fractionated, fractionating. 1. to separate or divide into component parts, fragments, divisions, etc. 2. to separate (a mixture) into ingredients or into portions having different properties, as by distillation or crystallization; cause to undergo , crystallization, or the like. 3. to obtain by such a process. /ˈfrækʃəˌneɪt/ verb […]
- Fractionating column
noun 1. (chem) a long vertical cylinder used in fractional distillation, in which internal reflux enables separation of high and low boiling fractions to take place