Cheap ethonal recovery


#1

Is there a way to recover on the cheap? Without dishing out 12k. Can you run a roto without a chiller ?


#2

You can run really cold city h20 through a condenser, It isn’t ideal but it can be done. a rotery evaporator can accomplish your task up to a certain throughput. You may loose alot of solvent vapor to the pumps, and lacking a cold trap could lead to some losses.


#3

Well i Will probably. Have Some good News for You soon
At this. Very moment i am building a diy vacuum ethanol distiller of aprox 15 gal
Wich If all My calculations are correct Will set You back about 800$
If iT works i think iT can easely be upscaled to 30. Gal
So i don t know what daily evaporation number You are looking for
I am constructing the chiller from a split unit airconditioning set suposedly having a working temp of -26C
I have also build chillers from chest freezer parts taken out while filled with gas(r22) that reach -30C
Quit easy actualy
You yust take her apart carfully drop the cooling element in a icejug with glycol
Put a aquarium submersible pump in and thats iT
Now all these designs won t pass a fire marschall so If iT is for legal company use forget these
Keep You updated


#4


Keep an eye on this tread If interested this is Where i Will post My progress


#5

Sounds Cool .appreciate it.


#6

I paid a thousand bucks for my Bucci rotary evaporator it’s a deewaar cold trap Style you can fill with dry ice or what I did was put an immersion chiller in the Trap with alcohol. I paid 500 bucks shipped for a good working -90 Celsius immersion chiller


#7

Can you post links pls


#8

#9

How would that chiller work for cooling ethanol?


#10

Just put it in the ethanol to chill the solution


#11

How long would it take it to cool a half 55 gallon drum. Room temp 50f


#12

No idea. The ethanol should become a lot less volitile to new dry ice and usually I get a nice freeze around my steel pots and then I know it’s ready for extraction.


#13

Hi roguelab, did you get your setup made? I will buy one from you if it works out well and we can talk about it etc etc
Good luck man


#14

Well iT wo


#15

So could you do this with day a 5ton ac unit?