crazy Steve
Member
I run a 110-140 F water bath (food grade runs) with an expansion column and a valve to isolate the column from the collection chamber during the end of recovery. The last pound or two of solvent is the hardest to get back as the solution's boiling point increases so I leave it in there when I swap columns. I'm recovering about 19 pounds of solvent in 45 minutes flat with one TR21. 3/8 swagelok hoses all around.