A device for removing free amines from NMP

Abstract

The utility model discloses a device of removal free amine in NMP, including outer jar body and inner jar body, the inside of outer jar body is provided with inner jar body, the inside of outer jar body below inner jar body is provided with electric heating wire, the top of outer jar body is provided with the door that opens and shuts, the top of outer jar body one side of door that opens and shuts is provided with exhaust port, the central position of top of outer jar body is provided with first servo motor, the inside of inner jar body is provided with the stirring rod, and the output of stirring rod and first servo motor is connected, the surface of stirring rod is provided with two groups of stirring vane, the bottom of inner jar body is provided with liquid outlet pipe, the one end of liquid outlet pipe is provided with valve away from outer jar body. The utility model not only has realized the stirring NMP solvent and made it with acid base solution fully contact and reaction deposition, has facilitated to the sufficient use of activated carbon filter plate, and moreover has improved the effect of removal free amine.

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