Is it feasible to use falling film evaporators for the recovery of salt-containing NMP solvents?
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Is it feasible to recover NMP from a solution containing 5% salt, 20% NMP, and 70% water, using a falling film evaporator? Or what process is better for desalination, water removal, and NMP recovery?
It should be possible; although I have only worked on NMP recycling in the battery industry, I think that if the salt content isn’t high, there shouldn’t be any problems.