Solly, I barely understand American, jargon and vernacular, without dragging in the Queen's English!
How about we meet in the middle, and you educate yourself to understand the language of the scientific process that we are discussing?
Try this and may I suggest doing some research at the links provided???
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[QUOTE="We rotovape out the alcohol after winterizing using a Heidolph (Translate, we first winterized the material and then removed the alcohol using a Hiedolph brand rotary evaporator).
See:
Google Heidolph rotary evaporators
Read
http://skunkpharmresearch.com/getting-the-green-and-waxes-out-afterwards/
and then use a Kugelrohr
Google Kugelrohr rotary evaporators
at 185/220C means 365F/428F
@ .002 torr means .000079" Hg, or 2 microns.
to fractionate means to fractionally distill off the components.
Read
http://study.com/academy/lesson/what-is-fractional-distillation-definition-process.html
off the mono and sesqui/diterpenes, discarding anything longer chain
(The raw oleoresin is a mixture of Monoterpenes, the lowest molecular weight, shortest chain
terpenes, Sesquiterpenes, the next longer chain, Diterpenes, the cannabinoids that we seek, and longer chain molecules like flavoids, chlorophyll, anthro cyanin plant pigments, and plant waxes.
You vaporize off the mono, sesqui, and diterpenes, and collect them in the condensing bulb, leaving the heavier, longer chain molecules behind)
The condensing bulb is in isopropyl and dry ice, so both the mono and sesquiterpenes condense out, but the monoterpenes stay liquid and the sesqui/diterpenes stick to the side of the condensing flask.
(You can fractionally distill the three of them into the same collection bulb, without changing it, because the monoterpenes are still liquid and the longer chain molecules are a resin sticking to the sides of the flask.)
At the end, we pour off the monoterpenes as a liquid and chase the sesqui/diterpenes out of the condensing flask with a heat gun.[/QUOTE]
That means to heat the collection flask with a heat gun, to aid pouring out the resin stuck to the inside of it.