You ca use a tefflon sleeve for the jiont at the bf or for all joints
It could work out more cost effective than the very special lube and less hassle lubing and it ca close the leak where it still scratches.
I kow that issue from cheap glass its fromm differet sources.
You can smear a thick coatig of lue aroud the edge for a temporary fix.
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update. was running with less lube - still a leak - vac around 110 after Y split and 15 at the pump.
temps - did 20-30 C increases - flow started at 140 C in the head, foil helped to speed up the process. flask was 180, tried to continue increase it increase flow(as summit started about their setup), but always had super slow flow same I’ve had with china glass set. had recorded a short video, will upload it tomorrow since on the road now without constant internet.
flow was the same with 1 difference - it moved all the way to condenser with wave like pattern, never seen fumes moving like I used to while working with BHO, my goal now is to remove unwanted smells and odors and colors form chemically converted CBD to THC(d8+d9), it turned out slightly pink in color but you can call it transparent. anyone had it before? never had that pink tint=\
played with temps increasing flask form 180 to 240 and head was 140-180 and same flow, even slowed down at about 160.
my colleagues couldn’t run Polyscience chiller this time and used water in the conducer that to my understanding was main issue due to poor water heat capacity and conductivity(please correct me if I am wrong, cause used to heat transfer liquid all the time, had to improvise with a tea boiler and adding cold water to keep condenser at 40-45 C) does that plays major role of efficiency and flow rate for the head?
please mind I am only dealing with CBD iso converted to THC, not full spec extract.
most of the smell was just condensed in the cold trap but still some was inside the solution
@The710eXecuTivE - thx for the hint, do they come in different sizes or just overlay and fit in between the joint? would love to get rid of lube completely.
could you guys advise on the temps for best flow in my conditions?
also question about vac - maybe flow rate decreased due to micro leaks around main flask’s joints (110 microns is too much for E28, never had more than 20-30), decided just keep running at slower rates than to disassemble and restart, had full vac at dry run though), pump has new Inline 19 oil and it looks super fresh, don’t think it needs to be replaces unless having 24-48h of work time, am I right or wrong here? pump eats 2l of it, have a spare 5 gallons, just asking how often should it be replaced)
thank you all for support. hope we will find solution to remove those smells, colors and odors in more efficient and time consuming way.
@Roguelab - thank you so much for tinfoil tip - it helped but flow rate still around china setup like 250ml per hour=\
best flow I’ve had with this run and weird flow at the condenser
I also noticed another oily crap in cbd isolate with a lower boiling point: Looking to buy isolate - #21 by The710eXecuTivE
To avoid smelly and overall unconsumable and toxic conversion you have to use trustworhy cbd that hasn’t been denatured. This is the most important advice regarding conversions anyone can give. I haven’t found any yet and seems i have to make the isolate. And then still recrystalize the cbd to get the yellow oxidized yuck out. Also it is better to not distill to the last drop but leave a little puddle in the boiling flask, I think a lot of unsavoury and yellow concentrates there, but maybe not necessary with both clean and recrystalized cbd.
The purple could be from leftover bicarbonate or whatever you used that interacts with leftover unreacted cbd like a beam test but I have no idea. Maybe you used too much and didn’t wash and dry properly. May I ask which conversion process you do?
I had a little purple tinge sometimes only in high d9 conversions made with very dilute hcl according to Adams, which is actually not a good way to do it but a very accessible route to mainly d9. But it makes many other things too in traces and a lot of ethoxy-hhc. But no purple in what ended up as mostly d8, so it could be d9 specific.
You should smear lube around the rim where the hole is that leaks.
@Roguelab is right. You’re not gonna separate d8 and d9 with an spd. You can try, I sure did, but it’s not gonna work.
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The Pink comes from Not correct ph.
The smell you have is from inpropper quench .
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The smell is from shitty cbd, or from distilling way too hot because of leak, but it doesn’t sound like it in his case. Or from distilling with acid or base still left in the solution to make random isomer soup, but also doesn’t sound like it if he has 60:40 d9:d8. Do you mean that with improper quench?
I had this issue with the smell also Running My reaction with alcl3 and i solve it with a diffrent quench.
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Your quench is next level 
No seriously I understand you should not give it to the community yust like that
For it s a holy grail you cracked no quench
Comes close to yours 
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what do you mean by “improper quench”? thx
could you please give a solution how to avoid it? thank you
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how do I connect my chiller and where is condenser control? would be nice to have a glass viewing window to visually see the flow to do separation better.
You seem convinced you can separate d8 and d9 in an spd. I wish I had pics of some of the crazy shit I tried to make it work🤣
Better vacuum in a short path will help lower distillation temperatures and helps keep the cannabinoids from changing during distillation
It’s not so much about separating d8/d9 in the spd. When you have a mixture with only one or the other, the lowest temperatures possible will prevent the heat catalyzed equilibrium reaction of the d8/d9.
But you’re not gonna claim your unit will separate d8 and d9, right?
Definitely not. I’m just talking about the purification of already converted mixtures. Was someone else trying to do that?
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Quench means stopping the reaction by cooling it down and or diluting and or neutralizing the acid.
Usually you pour the reaction into water or let cool down and pour into bicarbonate solution and then wash.
Now, in another thread, the roguelab character recommended to the zeko to quench with a mixture of methanol and KOH. This sounds like it would introduce something unnecessarily bad and give it a colour as well.
But this thread Azulene, Acidic Distillation, The Mystery Blue at some point is about neutralizing an acidic crude before distillation and someone also recommends a mixture of ethanol and NaOH, because it makes a “non-nucleophilic organicish acid” and that is good for some unspecified reason.
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Delta-8-THC isomer can be made from Delta-9-THC in a spinning band distillation system. Mix in 4% acidic alumina silicate with your extracted and winterized crude cannabis oil. Distill the cannabis oil and collect the THC distillate as you normally would. The combination of the acidic alumina silicate and boiling flask heat will catalyze the rearrangement of the THC molecule from delta-9 to delta-8-THC.
I am more purifying from that stinky mystery substance I have left after converting d8 to d9 to be able to use it in vapes. 1ml of that shit would stink your lab in 2 mins. super concentrated citric smell. cold trap flask collected it in the beginning prior to separation started.