molecular distillation

American  

noun

Chemistry.

1. a vacuum distillation in which the molecules of the distillate reach the condenser before colliding with one another.

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molecular distillation British  

noun

1. distillation in which a substance is heated under vacuum, the pressure being so low that no intermolecular collisions can occur before condensation

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Example Sentences

Oliveira used a grant from the Pollock Conservation Cooperative Research Center, an organization supported by seafood companies operating in Alaska, to see if she could produce human-grade oil through molecular distillation, also known as short-path distillation.

From US News

Molecular distillation is a physical refining process using vacuum pumps that progressively lower the pressure to distill off impurities that could darken oil, shorten its shelf life or give it an unpleasant fish flavor, Oliveira said.

From US News

In 1931 he constructed the continuous molecular still and was able to separate from cod-liver oil a golden waxy concentrate which showed high potency of vitamins A and D. Up to this time, molecular distillation had been a scientific curiosity.

From Time Magazine Archive