residue

The portion of the feedstock which is not vaporized from the still rotor, but remains liquid after passing over the rotor, and is collected in the residue gutter.

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distillate

The portion of the feed material which is vaporized from the still rotor and is condensed back to liquid.

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distillation

The process of separating a component or substances from a liquid by selective evaporation and condensation. Distillation may result in a partial separation that increases the concentration of selected components of the mixture.

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degasser

A chamber that prepares material by removing a portion that will evaporate at room or low temperatures when subjected to a vacuum environment and is often used to preheat material before molecular distillation.

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Torr

A pressure unit. One Torr equals 1 mm Hg — 1 millitorr equals one micron Hg.

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residence time

The average time material spends in a given location, in molecular distillation this is most often referred to as the time on heated surface.

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