I am doing cold ethanol extractions, around 4 to 5 gallons at a time. I have been using a 3L glass distillation setup that works pretty well, but takes a long time, and is easy to over heat towards the end of distillation.
I am considering buying a rotovap to help with solvent recovery. I have a vacuum pump and chiller so I am part way there. Not sure what size to get, I’m looking at the 2L or 5L rotovap from usalab. It looks like they have two different models for both sizes. I am wondering what the difference is in design and options. There is quite a difference in price, $1,800 for the 5L RE-501 vs. $3,500 for the 5L RE-1005
It looks like the more expensive one has a bump trap, different seals, and a nicer one piece stand. I see that some have a feed and drain port to help save time removing flasks to load/unload solvent, this seems like a great option to have. I could use some advice on which one to get. I’m not very familiar with them, if you have any input that could save me some hassle, it is much appreciated.