Fractionating Stills

A FRACTIONATING column is a pure form of the reflux still. It will condense all or most of the vapour at the top of the packing, and return about 9/10 back down the column. The column will be quite tall - say 600-1200mm (2-4 foot), and packed with a material high in surface area, but which takes up little space (pot scrubbers are good for this). It will result in an alcohol 95%+ pure (the theoretical limit without using a vacuum is 95.6%), with no other tastes or impurities in it. Note that both reflux and fractionating stills can still be used to make whisky, rum etc, as they allow a very precise "cut" between the heads, middle, and tail runs.

Examples of Fractionating Columns     This page last modified Tue, 20 Jan 2015 20:51:05 -0800