Reaction and catalyst separation device and method for solvent-free production of diacetylmonoxime

Abstract

The invention belongs to the technical field of chemical engineering, and particularly discloses a reaction and catalyst separation device and method for solvent-free production of diacetylmonoxime, the device comprises a reaction kettle, a mixture outlet at the lower part of the reaction kettle is connected to a membrane filter, and a filtered concentrated phase outlet is connected to a feed port of the reaction kettle after passing through a pre-reactor; a concentrated phase outlet of the membrane filter is also provided with a branch pipe connected to the cyclone membrane filter, the cyclone membrane filter comprises a feed port at the side part, a heavy phase discharge port at the bottom and a light phase discharge port at the top, and a membrane pipe is also arranged below the light phase discharge port at the top; a cyclone is arranged in the cyclone membrane filter, a feeding hole of the cyclone membrane filter is communicated with an inlet of the cyclone, a light phase outlet is formed in the upper part of the cyclone, a heavy phase outlet is formed in the lower part of the cyclone, and the membrane tube is positioned above the light phase outlet of the cyclone. No solvent needs to be added in the production process, no extraction agent needs to be added in the separation process, the process is simpler, energy can be saved, consumption can be reduced, and the production cost can be reduced.

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