Short path distillation

Help Support and Requests
1

Hi all,

I am looking for a quick sort of an SOP for CBD short path distillation, can someone help with a quick rundown of how to do it?
any help would be much aprreciated.

2

Have you seen this thread

or looked in the distillation category. Plenty of SOPs and examples what to do

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3

its actually my 2nd time posting but thank you very much for the heads up, ill make sure to search in the proper categories

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4

Does anyone have tricks to keeping the condenser from clogging with distillate? Besides a heat gun? Head gets clogged and my temp shoots up and releases unwanted stuff into my distillate.

5

What temperature are your running your condenser at?

Upload a picture of your set-up if you can.

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6

Also how fast is your ramp up to cannabinoid distillation temp? What kind of crude are you running with how much residuals in them? Whats your vac usually? Stir rpm? Dry ice traps consistently chock full? What do those bad boys look like at the end of your runs?

To keep it simple proper angling and having a heated condenser tube helps a lot. Otherwise there’s other variables at play

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7

You put a chiller on your condenser ?

Or just failed to insulate?

Nah seriously.

Those 1k word substitutes are well worth posting if you want help…

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8

Here is my setup: THC started coming off at 217, started seeing CBD around 244

I had a good run last night until the end of the main fraction started to clog.

I put hot water in my bucket with my submersible pump and was running the water around 50 degrees Celsius. I still had to break the heat gun out.

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9

IMG_2231
IMG_22314032Ă—3024 1.91 MB

Still clogging. Check it out.

10

I had a good run last night till the tails fraction started clogging the condenser.

I tried 50 degree Celsius water going thru the head but it wouldn’t let the THC condense back into a solid from vapor

11

I’ll start off by saying I do not distill CBD.

Your temperatures seem way too high I would assume you have either a weak vacuum pump or vacuum leaks.
Most people run their condenser much much hotter. There is no way that THC vapor is not condensing in your condenser at 50° C.

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12

Maybe I didn’t wait long enough. I will try again with a different batch tonight. I got a little shook when I saw it refluxing and not condensing into the golden goodness we all know and love.:wink: then I swapped the water out and went back to ambient temp water.

My vacuum pump is a Vevor 7cfm dual stage rotary vane. It pulls -40 mmhg

13

-40 inhg

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14

Maybe it’s just me but I can’t tell whether that distillation head is vacuum jacketed or not? How do you know exactly how much vacuum your pump pulls?

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15

Pics or it didn’t happen :stuck_out_tongue_winking_eye:

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16

You put a vacuum gage on your pump

17

50 degree Celsius thru the condenser was just what was needed. I didn’t wait long enough. Also, having the head at a 45 degree angle helped a lot.

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18

Okay since you’re claiming you have a good working vacuum gauge, then your problem is likely to be either vacuum leaks or that distillation head that you have not responded to whether it is vacuum jacketed? If it is not then you are having a problem there. Also since you already have a good working vacuum gauge that you trust why don’t you add it to your system and see what kind of vacuum you are achieving while running.

19

-40inHg??? Negative vacuum doesn’t exist so either your gauge is completely broken or you’re confused and putting a (-) in front of what your gauge is reading. The best Turbo pumps might get to 10^-7 mmHg on small volumes, or 10^-10 mmHg when putting the gauge direct on the pump.

There might be some fancy folk with turbos, but most people I know running short path don’t see the need to slap a $10k turbo for making distillate.

20

What are you talking about bro? :sunglasses: they have vacuum gages all day on Amazon.