the separation of the components of a liquid solution by successive distillations in which the vapor becomes richer in more volatile component and the residue richer in the less volatile component
A purification process where the raw monomer is heated to a precise, temperature controlled, constant boiling mixture. Then the vapor (gas) from this boiling mixture is cooled and transfered to the distillation column at an exact, specific temperature. The purpose is to remove any chemical impurities from the monomer.
the separation of a mixture of volatile substances into its components through differences in boiling points. (see distillation, fraction)
A heat dependent process used to separate a substance into pure fractions.
fractionation of a liquid by distillation
a means of separating liquids of different volatility
method by which crude petroleum is refined into usable products.
The process of refining crude oil into various oil products. The various products are separated out in the order of their boiling points.
an intricate distillation to obtain a high purity product.
The process in which a mixture of liquids is separated into components or fractions of different boiling points (or different boiling points ranges).
a separation process which uses the difference in boiling points of liquids.
A process by which components in a chemical mixture are separated according to their different boiling points. Vapours from a boiling solution are passed along a column. The temperature of the column gradually decreases along its length. Components with a higher boiling point condense on the column and return to the solution; components with a lower boiling point pass through the column and are collected.
Compare with distillation. A technique for separation of liquid mixtures by distillation that uses a tower attached to a flask containing the mixture to perform multiple distillations. Vapor moving up the column condenses on packing material inside the column, trickles down the column, and again vaporises. The more volatile component can then be drawn off at the top of the component, while the less volatile component remains at the bottom.
In fractional distillation a mixture of several substances, such as crude oil, is distilled and the evaporated components are collected as they condense at different temperatures. Useful products from oil
Is a method for refining essential oils or separating individual constituents (isolates) according to their evaporation characteristics. It is used for refining Alcohol (the terms "double or triple distilled" refer to this process). Citral is separated from Lemongrass Oil and Eugenol from Clove Oil by this method.
Fractional distillation is the separation of a mixture into its component parts, or fractions, such as in separating chemical compounds by their boiling point by heating them to a temperature at which several fractions of the compound will evaporate. It is a special type of distillation. Generally the component parts boil at less than 25°C from each other under a pressure of one atmosphere (ATM).