Ethanol removal using short path

Hi all I've bought a 1Lshort path kit at this point I don't have enough material to do a run but was wondering I would be able to extract the ethanol from the oil atleast using the short path I got I'm sure I could use it to recover the ethanol just looking for advice I won't be using vacuum distillation I'll be running as just a simple distillation without vacuum. I decarbed and filtered the oils-l400.jpgIMG_20200123_070238.jpg
 

gr865

Well-Known Member
Hi all I've bought a 1Lshort path kit at this point I don't have enough material to do a run but was wondering I would be able to extract the ethanol from the oil atleast using the short path I got I'm sure I could use it to recover the ethanol just looking for advice I won't be using vacuum distillation I'll be running as just a simple distillation without vacuum. I decarbed and filtered the oilView attachment 4462722View attachment 4462724
Does your unit have magnetic stirring? Also who did you purchase it from.
I have a water distiller that only gives me about 40 % alcohol recovery.
Wanting to make a cleaner oil and recover 90 plus % of the alcohol.
 

rkymtnman

Well-Known Member
Does your unit have magnetic stirring? Also who did you purchase it from.
I have a water distiller that only gives me about 40 % alcohol recovery.
Wanting to make a cleaner oil and recover 90 plus % of the alcohol.
pricey but extract source turbo. there might be some copycat models by now.
 

38Fitter

Member
Clean oil no problem use dry ice , -60° Everclear and herb, mix once it is at -60f in cooler & Evaporate Everclear in hot water bath or naturaly covered with cheese cloth to keep dust out.
Done
Vape’s in a C-cell cartridge with no additives.
View attachment 4929463
Nice oil brother. Can you share more about your technique? I’m in a state where we can only get 120 proof everclear. My RSO run yesterday left me a gold partially dry clumpy mess, no oil. Looking for alternatives or better info on how to improve. Thanks.
 

gr865

Well-Known Member
Clean oil no problem use dry ice , -60° Everclear and herb, mix once it is at -60f in cooler & Evaporate Everclear in hot water bath or naturaly covered with cheese cloth to keep dust out.
Done
Vape’s in a C-cell cartridge with no additives.
View attachment 4929463
I too would like to have more info. When I make FECO/CCO it's with 8 oz. cannabis and up to 3-4 liters 190 proof. Use a water distiiler and the oil is very dark.
Can you give us the Amount of Cannabis and Everclear?
Thanks.
 

Thundercat

Well-Known Member
Nice oil brother. Can you share more about your technique? I’m in a state where we can only get 120 proof everclear. My RSO run yesterday left me a gold partially dry clumpy mess, no oil. Looking for alternatives or better info on how to improve. Thanks.
I too would like to have more info. When I make FECO/CCO it's with 8 oz. cannabis and up to 3-4 liters 190 proof. Use a water distiiler and the oil is very dark.
Can you give us the Amount of Cannabis and Everclear?
Thanks.
Heres a link to how I make oil with a simple at home setup. If you follow the process and use good material you WILL have nice golden delicious oil that still retains the terpenes from the material.
 

cannabineer

Ursus marijanus
Hi all I've bought a 1Lshort path kit at this point I don't have enough material to do a run but was wondering I would be able to extract the ethanol from the oil atleast using the short path I got I'm sure I could use it to recover the ethanol just looking for advice I won't be using vacuum distillation I'll be running as just a simple distillation without vacuum. I decarbed and filtered the oilView attachment 4462722View attachment 4462724
When recovering alcohol, keep a close eye on the temperature of the still pot. You’ll probably find an optimum around 80% recovery. Push it harder and you’re likely to scorch the goods.
 

gr865

Well-Known Member
Heres a link to how I make oil with a simple at home setup. If you follow the process and use good material you WILL have nice golden delicious oil that still retains the terpenes from the material.
Thanks Dude!
 

abyss13

Well-Known Member
I too would like to have more info. When I make FECO/CCO it's with 8 oz. cannabis and up to 3-4 liters 190 proof. Use a water distiiler and the oil is very dark.
Can you give us the Amount of Cannabis and Everclear?
Thanks.
Haven’t been here in a while…!

I usually use about 12 to 14 ounces Everclear to 1 ounce herb… 25 minute soak @
-50/-60f range IN cooler … gentle stir 3 or four times ((4 Oz Max per run, Grind herbs using kitchen glass peanut hand grinder— comes out about twice the size of joint material))
filter off fast while cold 75 u filter 1st, 25u 2nd, Obviously the first filter is the most important after that the alcohol can get warm…Evaporate using hot plate or electric skillet & alcohol mixture in Pyrex dish on top… I like to keep skillet temperature under 160f this keeps the alcohol usually under 140f… I preserve many Terps, but I am not a Terp hunter !!!

Pretty much comes out the same every time 4–4.5 Gr net oil per Oz., difference is yield which obviously is based on cannabinoid continent percentage… note I do find using trim and leaf quality is much lower I don’t know why I just is… so I use those items for dry sift Hash only… unless of course I’m just making oil for my gelatin capsule edibles.
 

Cycad

Well-Known Member
Distillation of alcohol limit is around 90% or a bit more. Beyond that, you have to use a dehydrator EG calcium chloride.
Regarding the post above why did you use cold alcohol and why would it be a problem if the alcohol gets warm while filtering -- considering that you then proceed to evap the alcohol off using heat? I am looking to do this, I just bought 20L of 96% ethanol.
 

Kervork

Well-Known Member
Cold alcohol pulls less chlorophyll, waxes etc. If filtering takes a long time and the solvent warms you pull more crap.

Personally I filter though polyfill because it runs real fast and gets a surprising amount out. Then I allow to settle and suck off the top.

That's nice oil for an alcohol extraction.

The paradox is, the more crap you pull, the more THC you get but the more work you do to clean it up.
 

Cycad

Well-Known Member
I understand now. I got really good results by freezing the 96%, and the 25 micron filter was fast and effective.
 

Three Berries

Well-Known Member
I use to work in the Chem lab at a battery manufacture. I made up a fractional still once. Put in 5% ethanol and came out with 95%. Attracted a lot of attention from the smell.....
 

abyss13

Well-Known Member
Distillation of alcohol limit is around 90% or a bit more. Beyond that, you have to use a dehydrator EG calcium chloride.
Regarding the post above why did you use cold alcohol and why would it be a problem if the alcohol gets warm while filtering -- considering that you then proceed to evap the alcohol off using heat? I am looking to do this, I just bought 20L of 96% ethanol.
All about Chemistry & I’m not a chemist, I just read a lot & found something that works easily for me…!
Glad to see you had some success.


((comment. If you did the above process at “”room temperature””,
Your yield would be about 6 1/2 to 7 1/2 g of oil per Oz. 30–35% more…
Why? You are picking up everything out of the plant cannabinoid oil’s, fats, waxes, chlorophyll, and other undesirables, which in all reality is just fine if you only plan on using it for edibles or gelatin capsules, but it clogs up Vape carts very easy & reduces potency.))

Hash or Clean Kief
Hash (Keif) Yields about 68-70% oil, no wax/fat/biomass pickup if done at
very low sub zero (I prefer -50/-60f using dry-ice in food cooler method)… I will use it now and then, ice water Kief the best flavor.


HASH OIL :
Great Article:
June 28, 2017
CANNABIS OIL QWET EXTRACTION BATTLE OF THE WASH: DRY ICE VS. FREEZER


Good article:
How to Find the Best Cannabis Extraction Solvents
by Anna Wilcox
July 19, 2020
……..Conclusion…….
A difference in fat melting temperature points is the reason ethanol super cold extraction works, why ? cannabinoid oil’s versus regular (non-cannabinoid) plant fats have a different extraction dissolving rate
at the same temperatures. You might say that the fats and waxes are slowed to a extraction crawl !

Cannabinoid oil will dissolve at -40, but at -60, -70, etc it’s extraction time increases.
Non-cannabinoid Plant fats on the other hand
will dissolve at 70°, 0° -40°, but will take longer to dissolve (extract) at colder Temperatures.
They will dissolve at a much slower pace at -40 than cannabinoid oils.)))
(So, however, herein lies the flexibility of ethanol making it extremely suitable for extracting botanical compounds:
the “polarity of ethanol”can be slightly modulated / adjusted simply by changing temperature.
The colder the ethanol, the higher its “affinity” for fat soluble compounds, and therefore a more efficient extraction of “cannabinoids and terpenes”.
And if extraction is performed with warm or room temperature ethanol however, will not only grab the cannabinoids, but also a wider spectrum of terpenes as well as “water” soluble compounds -undesirables, fats, waxes, other lipids & chlorophyll.)

I guess basically you’re just freezing everything out you don’t want, In the most simplest terms!

Why not more articles. ;)


Quote-“Ethanol continues to be the solvent of choice for high-throughput cannabis processors aiming to extract hundreds to thousands of pounds of cannabis and hemp biomass daily.”
Article:
Cannabis science and technology:
The Evolution of Ethanol Extraction Methods in Cannabis
April 16, 2021
ByLo Friesen
 
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Cycad

Well-Known Member
Very interesting, thank you. I was worried that I'd bought too much alcohol but then I found that I need to wash the filters with alcohol so...
 

abyss13

Well-Known Member
Very interesting, thank you. I was worried that I'd bought too much alcohol but then I found that I need to wash the filters with alcohol so...
I use cheap 90 ISO alcohol for clean up… instead of the Everclear, except for when I’m cleaning out my syringes or any product that will be evaporated and consumed again (This might sound silly, but if I fill two or three
C Cell cartridges up I’ll have about 1/10 of a gram 10% oil left in the syringe, why waste it… clean out with Everclear & save in a jar for juice … buzz !, but watch out I estimate 1/10 of a gram of oil that I make is about 125 -150 megs THC… depends what strain I make it with)
 
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