Re: heads question
- Hi Mario,
The "heads" consist mainly, but not entirely, of ethal acetate, which
is a more volatile compound than ethanol. What the packing does,
because of reflux, is consentrate the ethal acetate at the top of the
column, where it can be drawn off and kept seperate from the main run.
The main run, in the same way, can be consentrated at the top of the
column from the tails, by ever increasing the reflux ratio, though
total seperation will never occur in a packed column. HTH
Tip one, Morgan
--- In email@example.com, "Mario" <nedsbee@...> wrote:
> Something's bothering me, but i'm sure it's just over my head, and the
> answer will be simple.
> With a packed reflux still, are there really "heads" to be
> Seems to me that the refluxing effect of the packing would mean that
> actual heads have been recycled a few times by the time you draw off
> anything, no?
> What am I missing?