What we use to remove solvents say after an extraction is a rotvap (rotorary evaporator). There's a cold finger on the left filled with dry ice and acetone to catch the unwanted vapors in the big Round Bottom (RB) receiver flask (left). The product (in solvent) is in the RB flask on the right (blue liquid). The system rotates the product flask to help prevent bumping. That's where you hit the BP very violently and all the liquid sort of flys off explosively everywhere .
There's a hot water bath under the product and a vacuum pump attached at the cold finger.
So.
1 we trap and collect the evaporated solvent
2 we control the desired temp of the product in solvent. Firstly b/c it's gonna get real cold as you pull off the solvent. Secondly the warmer the water bath the faster and better we can evaporate off high BP (boiling point) solvents.
3 with a vacuum pump we can control how much vacuum so that we don't bump the solvent (distillers call that puking). You want to gently evaporate using just enough vacuum it you don't want it evaporating like crazy it will bump.
Unless your rich or supremely lucky your not gonna have a rotoray evaporator.
On the other hand if you wanted to be careful and your worried about combustible vapors and the flash point of alcohol .
A very very pale blue flame sort of hard to see but fun to watch hahahaha
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You could just do a gentle distillation. Here's a simple set up just cold water flowing thru that condensor 5 should knock that ethanol vapor back to a liquid pretty easy.
I've done this with a "water purification system" I built outta a bud keg.
Comes out around 180 proof hahahahaha
What you guys talk about on the stove top is really just 13, 14 and 15.
Just add 3 (simple distillation column ) and 5 (water jacketed condenser. You'd be there.
Ya don't need the thermometer 4 and the whole recovery flask set up 8, 9, 10. Just a ball jar to catch the ethanol for reuse or to toss.
And ofcourse a way to gently heat the RB flask 15. There's cheap ways to do this.