Mechaton
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Extractors
I'm looking to get equipment to do extractions from various herbs. Anybody got advice on what equipment to use? I remember reading somewhere that a
new type of extractor, better than the Soxhlet, was invented recently. I'm having trouble locating data on it. Overall, It sounds like a useful
topic to discuss.
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unionised
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This sort of thing?
http://www1.dionex.com/en-us/instruments/ins7387.html
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Mechaton
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Not quite what I had in mind. The device I saw was a single piece of glassware. I'm pretty sure I saw it on this board but I'll be damned if I can
search it out.
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neutrino
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Were you thinking of a Gregar extractor? There was a thread here on the subject.
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Mechaton
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that is exactly what I am thinking of!
Anybody have any experience using these? Would it be a good investment to have one built?
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CherrieBaby
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A Soxhlet extractor? I've seen the 200 mL ones going cheaply on eBay (below $10). You will have to outbid me for one of those massive 600 mL ones
(should something like that ever turn up). Or,... you can make your own. Homemade ones are probably best made out of welded metal.
Has anyone else apart from me tried making a big Soxhlet out of plastic parts?
How are the Gregor extractors better than the Soxhlets? - Surely a Gregor is used for extracting liquids?
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Mechaton
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I suppose one could make a bigass extractor totally from PVC, that'd be cool. Is That what you did, CherrieBaby? I'd love to see pictures.
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12AX7
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I want to make a Gregar out of a 5 gallon bucket and, I guess, a submersion heater. Just drape plastic over top to make a simple still. Add
drip/extraction bucket in the center.
Tim
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bio2
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.....Has anyone else apart from me tried making a big Soxhlet out of plastic parts?......
Yep, I made one from a 3 liter PET soda bottle which stands up to hydrocarbons very well.
The bottoms are thickened so either a hole can be drilled and a bulkhead fitting installed but I welded mine.
I've since found some extra heavy PET sport bottles with about a 2 inch cap.
Just keep PET out of the micro and away from strong acid or base. PP is better for all around use but softens some with hydrocarbons.
At the veterinarian supply I saw a very thick 1 gallon PP baby botle with a giant nipple. I quess the calfs step on them cause it's as thick as a
plastic pressure sprayer.
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Mechaton
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I'd imagine the problem with PVC would be softening, I guess I'll have to go finda good chart on what dissolves it.
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neutrino
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You want a good chemical resistance table. There are hundreds on the web on different materials, so just Google it.
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bio2
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....'d imagine the problem with PVC would be softening,.....
LOL, more like dissolving with many organics. What do you think PVC glue (solvent cement) is?
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Ramiel
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A metal Gregar would definitely be nice (I mean, personally, I find copper, for instance a tad easier to sweat weld than glass!). But then you don't
get to see the beautiful extraction taking place... Perhaps solved [haha! get it! >_<] by little viewing windows at key points, e.g. solvent
overflow tap, solvent reservoir and the actual “extraction place thingie” [technical term].
Caveat Orator
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Mechaton
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I think it'd be cool for doing extractions on Lots of plant material. I'm thinking of making herbal essences at some point and It'd be awesome to
extract pounds at a time.
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