@zaxlol he’s right 
pushing it out the drain spout wet (almost like a wet foam) is what works best for us. then just purge off the solvent and you’re done. don’t even need to disassemble your collection vessel to get it out.
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Check the image I posted. Doing it out of a 4” ball valve hehe. Should be even easier.
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Time and temperature are going to depend on your target’s solubility in hexane and your desired particle size. Controlling a slower temperature gradient to prolong your metastable zone should give you larger crystals, faster cooling tends to result in more fine particles which could pass through your filter.
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Those are valid points.
It’s been suggested by @ChangMinXD to run -10c and get a much bigger chiller to use for other things in the lab.
I think I’ll pickup a 50/30 chiller today and run some tests when the machine gets here
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yeah 4” is fucking massive 
looks badass man, definitely gonna be following here to see 'er in action
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wish thats what she said.
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Why not just build your own using SS?
I went to them thinking they had it in stock. No dice so I had one built in China, will be here next week some time
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Your temperature is going to be dependant on your solvent(s) to -a ratio, but -10 is a pretty solid for -a in a solution of butane without precipitating fats which will make everything that follows more difficult and time consuming.
Your sintered disc will allow you to dump the liquid from your precipitate, but all your precipitate will then be stuck in your reactor and have to be dug out from around your paddles.
You want to push it, and it’s liquid, and usually at least one more volume of clean liquid out of it and into a second filtration vessel. Current method require you to remove it manually, but it’s much easier to get it out when you don’t have paddles in the way.
We’ve been running one of these style of crystallizers for about a year, I’ve personally put something like 50k/wk of ‘crude’ through this system during that time and we’ve run it from -10 to -80 as we’ve dialed in certain processes.
thankfully i have no fats, lipids, waxes to deal with, solvent is hexane.
Be careful with that hexane. If you’re going to have it evaporating a lot in your work area you might want to consider switching to heptane for your process.
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Sounds great in theory…. heptane is double the cost and not as easy to obtain at scale. proper ppe worn.
Be sure you change out your organic filters regularly. If you can taste even the slightest amount of solvent in your mask you’ve had it too long.
Maybe pentane would serve you better? Hexane is a pretty potent nuerotoxin.
masks stored in bags/sealed buckets, replace every 30 days. used only a few times a month. We rent worried.
We arent in the cannabis arena…. pentane wont work for what we are doing.
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Just like that… reactor on the way. ill have it here next week.
Tried to source a rolling mount rack locally for a decent price and was unable so i ordered the stainless steel tubing and some other tools. Ill post some pics of it once it done. If anyone wants any of this stuff im building…im happy to offer it for sale.