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词汇 fractional distillation
释义

Definition of fractional distillation in English:

fractional distillation

noun
mass nounChemistry
  • Separation of a liquid mixture into fractions differing in boiling point (and hence chemical composition) by means of distillation, typically using a fractionating column.

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    Example sentencesExamples
    • This mixture (an azeotrope) is produced by fractional distillation and it is known as rectified spirit.
    • The liquids in a mixture such as this can be separated by fractional distillation.
    • However, in broad terms, petroleum can be divided into six fractions obtained from fractional distillation of the crude oil.
    • Historically acetone was prepared by the destructive distillation of wood, followed by fractional distillation of the product.
    • Oil refining separates the various fractions of petroleum by a process called fractional distillation and takes place in a large plant called a refinery.

Definition of fractional distillation in US English:

fractional distillation

nounˈfrækʃənl
Chemistry
  • Separation of a liquid mixture into fractions differing in boiling point (and hence chemical composition) by means of distillation, typically using a fractionating column.

    〔化〕分馏

    Example sentencesExamples
    • This mixture (an azeotrope) is produced by fractional distillation and it is known as rectified spirit.
    • Historically acetone was prepared by the destructive distillation of wood, followed by fractional distillation of the product.
    • However, in broad terms, petroleum can be divided into six fractions obtained from fractional distillation of the crude oil.
    • The liquids in a mixture such as this can be separated by fractional distillation.
    • Oil refining separates the various fractions of petroleum by a process called fractional distillation and takes place in a large plant called a refinery.
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