rectifying column

rectifying column

[′rek·tə‚fī·iŋ ‚käl·əm]
(chemical engineering)
Portion of a distillation column above the feed tray in which rising vapor is enriched by interaction with a countercurrent falling stream of condensed vapor; contrasted to the stripping column section below the column feed tray.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The latter is integrated between the evaporator and the compressor and is composed of two accumulators, a heater, and a rectifying column. When an increase in the capacity of the HP is required, the expansion valve opens and the accumulator above the rectifying column is partially filled with liquid refrigerant.
column still: tall, metal still of one (analyzing column), two (rectifying column), three (hydroselection column) or four columns in which a fermented mash is boiled to produce vapors which, once condensed, are distilled into a spirit of at least 60% alcohol by volume (abv) and as much as 95%, depending on how many columns there are.