Sciencemadness Discussion Board

Looking for liquid liquid extractor

GreenD - 21-9-2012 at 08:52

I'd like to make some absinthe, amongst other isolations of natural compounds and I really want to get my hands on a good (but affordable) liquid-liquid extractor.

Anyone know the least expensive / good supplier, or perhaps have one of their own up for sale?

Hexavalent - 21-9-2012 at 10:01

What's wrong with conventional techniques, like distillations and use of separating funnels for extractions?

GreenD - 22-9-2012 at 14:56

Quote: Originally posted by Hexavalent  
What's wrong with conventional techniques, like distillations and use of separating funnels for extractions?


Distillations are sometimes hard to obtain smaller amounts - coating the glass walls.

Nothing is really wrong with either of these, but I'd like to just set it up, walk away and have it continuously extracting all the time. Minimal work.

I think it would be funner to work with this too :) it is probably more reproducible as well than sep. funnel


OOPS! My bad I'm looking for a solid-liquid extractor. sorry was not thinking and typing at the same time. i.e. a soxhlet


[Edited on 22-9-2012 by GreenD]

UnintentionalChaos - 22-9-2012 at 15:04

Do you mean a Soxhlet extractor?

GreenD - 22-9-2012 at 15:07

Quote: Originally posted by UnintentionalChaos  
Do you mean a Soxhlet extractor?


Exactly.

Lambda-Eyde - 22-9-2012 at 19:19

Soxhlets can be found on eBay all the time at affordable prices. Especially if you're looking for the ones with US tapers.

Pyro - 23-9-2012 at 05:56

http://laboyglass.com/index.php/soxhlet-extractor-body.html
remember to buy a condenser for it as well

GreenD - 25-9-2012 at 14:23

Does anyone know the average volume of one of these? Is it around 250? 500 mL? I've never had one before and Laboy doesn't specify.

Pyro - 25-9-2012 at 14:57

Ill post a pic of mine, tomorrow probably

UnintentionalChaos - 25-9-2012 at 14:59

Quote: Originally posted by GreenD  
Does anyone know the average volume of one of these? Is it around 250? 500 mL? I've never had one before and Laboy doesn't specify.


I checked the one that we discussed in PM, a 55/50. Volume in the extraction "cup" up until the point where the solvent drains is 200ml. The sidearm carrying the boiling solvent vapors into the soxhlet is at the 300ml mark. You could comfortably pack the extractor to probably 250ml, though the upper material would not be as well extracted since it wouldn't be immersed in solvent, just wetted from dripping solvent and cooling vapors.

GreenD - 26-9-2012 at 13:59

well i purchased from ebay because i am an impulse buyer...

:)