This is essentially a compact batch-type fractional distillation unit in which
the reboiler consists of a vessel mounted in a heating bath and with a
packed column above. The vapours from top are condensed and can be
refluxed as per requirement.
The top product is sub-cooled and collected in receivers.The bottom
product is finally drained from the reboiler through a drain valve.
The unit is available in vessel sizes of 20,50,100 & 200L,300L and is suitable
for operation under atmospheric pressure and full vaccum.