A buddy of mine sent me this link: https://solvent-recycler.com/ for a solvent recycling machine. Basically it’s a still with a refrigerator unit to cool the vapor and collect clean IPA. Single-button operation. Just dump in the dirty solvent, seal the lid, hit a button and come back later to retrieve the fresh IPA and remove the plastic bag full of resin (which could be put in the sun to cure and then dispose).
This manufacturer quoted me around $3800 for the unit. There are other manufacturers of such machines but I have not found a better price for the capacity. It’s a mature technology that has found application in various industries that use solvents such as automotive painting.
Thinking about recycling the IPA, instead of using and disposing of it, which is a pain. For the amount of IPA we use I am thinking the machine would pay for itself fairly quickly.
A bonus could be having fresh IPA for each form-wash load instead of running it until it gets dirty enough to change out.
Would such a machine work for recycling TPM or DPM, I wonder. Darnit Jim I’m an engineer not a chemist. Any chemists feel free to chime in.