Or three or 4… These things suck solvent
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I’ve never used it personally just had a Gilson rep come to one of our facilities with the literature.
I have used Buchi flash LC and I thought it was sturdy and easy to use, pricey but what quality LC isent.
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how much does something like this go for? I would like to buy one and learn more about.
60-180k depending on the model, idk on the largest interchim.
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we are interested in the 420 model interchim which im guessing run about 60k.
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Correct.
u recommend buying this machine?
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A few years ago at Ebbu, a benchtop Gilson ran circles around the Novasep Supersep 1000 SFC, with remarkably less solvent.
If your chroma game is serious youll have a dedicated falling film for each fraction. DM me if you would like references to the most competent consultants I can personally vouche for.
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What is your plan for solvent recovery? Falling film or multiple rotovaps? We are currently considering the ITM800 but it is a ton of solvent to recover if you plan on running full days.
To my knowledge the acetone used in the Interchim units cannot be reused correct? We are currently looking at the ITM800 but the solvent recovery aspect can be a bit…overwhelming.
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We only have the 420 unit, so we plan on just using a single 50 liter roto (to recover about 80 gallons in 24 hours continuous chromo use).
This will definitely be our bottle neck and we will probably pickup a second roto. When we purchase a larger chromo within the next month, we will also purchase appropriate solvent recovery. @Psilisophical has the right idea with dedicated FFE for each fraction, but that’ll definitely be a phase 2 consideration.
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New member here. Had to wait 24 hours until I could reply.
Thank you. But we would prefer to remove the THC from the winterized crude before we distill it. And we would like to build the equipment ourselves with either glass parts or closed loop parts. We have seen people do it on instagram. Does anybody here have experience in that area?
Ok if you want to go that route, easiest method is dry column vacuum chromatography aka DCVC. Very labor intensive though without gradient pumps.
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What kind of volume are you looking to produce on a monthly scale?
would you go into more detail on this? Interested.
Best info by far to get the gist of it.
Generally, if you have consistent crude (i.e. same source) to process, you can optimize your SOP for separation at scale.
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We are currently processing around 5 kilos of crude per week, so around 15 kilos per month
Has anyone been able to address the dark purple color of the distillate after it passes through the chromo?
I’m using the 400 model with the methanol sop that comes standard. All my fractions come out dark red purple and pink.
I haven’t tried CRC yet… has anyone had success producing nice gold distillate after processing with the interchim? Appreciate any feedback.
Thanks gang
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Interchim 420?
That’s so strange- nobody at interchim told me about that, I opted for the buchi cause they recommended EToH and I wanted to be able to say “buchigang buchigang buchigang” ad infinitum as I used the tools
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Usually color change like that is a PH Imbalance, dissolve in 190 proof ethanol and check PH. Titrate with citric acid or mgo until the ph of your ethanol with crude in it reads 7.1 and see if that fixes it. Cbd reacts badly to ph changes.
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