14
Recovery:
Recovery is the distillation of the solvent in the collection chamber. By distilling, the impurities in the gas will
be left behind (in this case, extract) as the gas moves to the LP tank.
In order to efficiently recover without damaging the extract, a few factors must be acknowledged.
First, we need to note the boiling point of the solvent. This must be noted as the LP tank must be chilled below
this temperature. It is recommended to get the LP tank as cold as possible, as lower temperatures will ensure
gas is instantly liquefied. Colder temperatures allow faster recoveries.
Second, the compounds being extracted must be acknowledged. It is important that the distillation
temperature does not exceed the boiling point of the lowest boiling compound in the extract. In order to
achieve a full extract, it is important that none of the extracted compounds are evaporated during distillation.
*
Please refer to page 5 for information on boiling points in relation to vacuum level**
a. Column Recovery
Always perform regular tests and maintenance on recovery pump. It is highly
recommended to set up a schedule of cleanings and rebuilds to ensure proper functionality.
F
IG
.
9
