Device reducing phthalimide potassium salt to prepare amine

Abstract

The invention relates to a device reducing phthalimide potassium salt to prepare amine. The device comprises a device body and a recycling tank and is characterized in that support legs are arranged on two sides of the bottom of the device body, the bottom surface of the device body is provided with a discharge outlet, and a motor is fixedly connected to the upper end of the device body. The device has the advantages that the recycling tank is arranged on the outer side of the device body, the upper end and the lower end of the recycling tank are communicated with the device body through slurry conveying pipes, two rows of membrane filters are arranged inside the recycling tank, and accordingly solid potassium phthalate can be recycled, reaction rate can be increased, and conversion rate can be increased; the heat conduction layers are arranged on two sides of the recycling tank, electric heating rods are embedded into the outer surfaces of the heat conduction layers, and accordingly asolution inside the device body can be heated.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to a device for preparing amine by reduction of phthalimide potassium salt. Background technique [0002] At present, during the reduction of phthalimide potassium salt to prepare amine, a large amount of white solid potassium phthalate will be produced, which is insoluble in the methanol solution of the reaction system, and a large amount of fixed and adsorbed raw reaction materials, thereby reducing The reaction rate prolongs the reaction time and the conversion rate is low, so it is necessary to improve its design. Contents of the invention [0003] The invention provides a device for preparing amines by reduction of phthalimide potassium salt in order to solve the technical problems existing in the known technology. [0004] The technical solution adopted by the present invention to solve the technical problems existing in the known technology is: a devi...

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Problems solved by technology

[0002] At present, during the reduction of phthalimide potassium salt to prepare amine, a large amount of white solid potassium phthalate will be produced, which is insoluble in the methanol solution of the reaction system, and a large amount of fixed and adsorbed raw reaction materials, thereby reducing The reaction rate makes the reaction time prolong and the conversion rate is low, so it is necessary to improve its design

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