addded to post above
1 Like
Woww, amazing crystal structure. What are your yields looking like? The longer purge time sounds like a bummer, but the fire hazard of pentane really makes my ass pucker when I’m working with it, so heptane sounds like a safer (and cheaper) alternative I need to look more into.
1 Like
around 80% on recrystallization
i was referring to this.
you are right though, every round of reX should yield a much purer product.
Ive played with the heptane, yields well, seems safer, but jeeze is it a bitch to purge x)
1 Like
So from a kilo of distillate you’re getting 800 grams of finished isolate?
no we are talking recryst. So 80+% from isolate. Purity costs! Over all I usually see 12+% return in 99+%Isolate from our Biomass (@15% average CBD %) broken down roughly like this:
1000Kg biomass @ 15% average CBD
gives
250Kg Crude (~25% yield by wt)
gives
180Kg distillate (~66% yield by wt)
gives
120+Kg recrystallized isolate (99+%) (~66% yield by wt)
6 Likes
Excellent Pictures. Thanks for taking the time to upload them. You and your team are doing some awesome things. The Turnkeylabs system was originally a pentane reactor, correct? And you’re using heptane instead? I’ve got some unopened heptane on hand, I might have to give this a try next time. I’m in the same boat of coppertop, pentane is dangerous to handle. Always use it cold.
Have you diminished CBDV <LOQ ? (on the assumption it was in your material to begin with )
These are just the averages I use so that I am always happy with actual yields.
1 Like
CBDv is a non-detect in our isolate. Which usually comes back with ridiculous 103%-107% purity regardless of which lab I send it too. Honestly I can’t believe they leave such a non-real number on the reports, but I think complaining about the Analytical Labs is probably preaching to the choir here.
3 Likes
Maybe you’ve got better quality control than the pharma companies making the standards 
1 Like
How has everybody been doing on residual solvents for pentane?
Our first run was <300 PPM. I should have left it on longer but was trying to get our first batch ever finished. I have gotten 0 PPM before but that is a 12 hour run in a vac oven. First run was ~3 hours nothing was coming so I figured it was good.
1 Like
My batch size for my rapid crystallization procedure uses 1500 grams of 80-85% CBD material which means there is anywhere from 1200-1275 grams of cbd possible to isolate per batch.
My yields are consistently between 850-1000 grams so about 70-80% of available CBD i get outliers in both directions but this is typical.
Note: My procedure is rapid and takes 20 minutes and yes wiped film is the only way to distill for production scale to fully utilize this crystallization process.
That sounds like a shit yield from distillate to isolate, but time is money and that crystallization time is impressive. Is that because wipes film tends to leave so much more pigment than what most are getting out of their short path?
Well thanks for that and unfortunately for you I will respectfully say you most likely have not performed any sort and bulk scale crystallization because that is a good realistic yield and I am very comfortable with those numbers. Those are my honest, conservative yields. I promise low, deliver high. Many times in this industry honesty is taken as a weakness because everyone is full of shit lol. I have yet to see evidence of people scoring remarkably higher than my percent yields.
I will not rant about short paths anymore than i already have but anyone using a short path is on such a small scale they are irrelevant.
Edit: this is not a jab at individuals or companies using short paths, keep growing and buy a wiped film.
10 Likes
Well yea, once you hit a certain scale it doesn’t make sense to sacrifice speed to chase higher yields. I just wasn’t expecting that much of an acceptable yield loss in the name of scaleability. Especially since the vast majority of “99.9%” isolate the bigger guys were slanging last year actually test between 90-97% when I tested a sample of the kilo they sent me.
It’s good that you underpromise and overdeliver. Seems to be a rare trait in this industry.
2 Likes
It seems like there is a misunderstanding.
Yield is the % of isolated cbd isolate divided by the total amount of cbd in your mixture (distillate).
It seems you are describing purity when you say 99.9% and yes in terms of purity the isolate I make is 99.9% every time.
1 Like
Hey, could you tell me what extraction methodology do you use for achieve that 25% crude oil yield? I use a ratio of biomass:ethanol 1:10 and I get 12% by wt
If input is 15% CBD, then anything over 14.5% is non-target.
Extract warm (45-50% cannabinoid crude) and you can achieve that.
Question is; why?!?