| 释义 |
fractional distillation
fractional distillationn. Distillation to separate volatile chemical substances in which the products are collected in a series of separate fractions, each with a higher boiling point than the previous fraction.fractional distillation n 1. (Chemistry) the process of separating the constituents of a liquid mixture by heating it and condensing separately the components according to their different boiling points 2. (Chemistry) a distillation in which the vapour is brought into contact with a countercurrent of condensed liquid to increase the purity of the final products Sometimes shortened to: distillationThesaurus| Noun | 1. | fractional distillation - fractionation of a liquid by distillationfractional process, fractionation - a process that uses heat to separate a substance into its components |
fractional distillation
fractional distillation1. the process of separating the constituents of a liquid mixture by heating it and condensing separately the components according to their different boiling points 2. a distillation in which the vapour is brought into contact with a countercurrent of condensed liquid to increase the purity of the final products fractional distillation[¦frak·shən·əl dis·tə′lā·shən] (chemistry) A method to separate a mixture of several volatile components of different boiling points; the mixture is distilled at the lowest boiling point, and the distillate is collected as one fraction until the temperature of the vapor rises, showing that the next higher boiling component of the mixture is beginning to distill; this component is then collected as a separate fraction. fractional distillation
distillation [dis″tĭ-la´shun] the process of vaporizing and condensing a substance to purify it or to separate a volatile substance from less volatile substances. Called also vaporization.fractional distillation separation of volatilizable substances into a number of fractions, based on their different boiling points.frac·tion·al dis·til·la·tiondistillation of a compound liquid at varying degrees of heat whereby the components of different boiling points are collected separately.fractional distillation
Related to fractional distillation: chromatographyWords related to fractional distillationnoun fractionation of a liquid by distillationRelated Words- fractional process
- fractionation
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