- a distilling; specif., the process of first heating a mixture to separate the more volatile from the less volatile parts, and then cooling and condensing the resulting vapor so as to produce a more nearly pure or refined substance
- anything distilled; distillate
Distillation is defined as a refining process that collects the pure liquid or vapors given off by heating and then cooling a mixture.
An example of distillation is how vodka is made from a grain.
- The evaporation and subsequent collection of a liquid by condensation as a means of purification: the distillation of water.
- The extraction of the volatile components of a mixture by the condensation and collection of the vapors that are produced as the mixture is heated: petroleum distillation.
- A distillate.
simple distillation of water
A method of separating a substance that is in solution from its solvent or of separating a liquid from a mixture of liquids having different boiling points. The liquid to be separated is evaporated (as by boiling), and its vapor is then collected after it condenses. Distillation is used to separate fresh water from a salt solution and gasoline from petroleum.
(countable and uncountable, plural distillations)
- The act of falling in drops, or the act of pouring out in drops.
- That which falls in drops.
- (chemistry, chemical engineering) The separation of the volatile parts of a substance from the more fixed; specifically, the operation of driving off gas or vapor from volatile liquids or solids, by heat in a retort or still, and the condensation of the products as far as possible by a cool receiver, alembic, or condenser; rectification; vaporization; condensation; as, the distillation of illuminating gas and coal, of alcohol from sour mash, or of boric acid in steam.
- The substance extracted by distilling.
OriginSee also: distillâtion
From Latin distillātiō, distillātiōnem.
- They may be prepared by the dry distillation of the ammonium salts.
- Notwithstanding the inconsistency of his allocation of substances to the different groups (for instance, acetic acid was placed in the vegetable class, while the acetates and the products of their dry distillation, acetone, &c., were placed in the mineral class), this classification came into favour.
- The metal is usually obtained from the flue-dust (produced during the first three or four hours working of a zinc distillation) which is collected in the sheet iron cones or adapters of the zinc retorts.
- Under such conditions, distillation takes place at higher temperatures than the normal boiling-points of the constituent hydrocarbons of the oil, and a partial cracking results.
- The process of distillation of lubricating oils under reduced atmospheric pressure is now in very general use, especially for obtaining the heavier products.