A p-xylene adsorption separation device

Abstract

A p-xylene adsorption separation device, the invention belongs to the field of chemical equipment, includes a tank body, a vertical partition board is fixedly installed in the tank body, and several upright first conical rings and inverted second conical rings are arranged in the tank body. Conical ring, the outer wall of the tank body is fixed with several supporting legs, and the two sides of the top surface of the tank body are respectively provided with vertical channels. The lower end of the screw rod and the second screw rod are provided with a screw sleeve threadedly matched therewith, and ejector rods are respectively fixedly installed on the top surface of the chute. The device can make the material pass through the first conical ring and the second conical ring of each layer in sequence, the adsorbent on the first conical ring and the second conical ring of each layer will adsorb it, and the desorbent can Desorbing it can realize multiple adsorption and separation of materials, and the materials can be discharged in batches. In addition, the adsorption and separation of p-xylene can be carried out at the same time, which can reduce the processing time of the device for materials.

Description

technical field [0001] The invention belongs to the field of chemical equipment, in particular to a p-xylene adsorption separation device. Background technique [0002] P-xylene is a colorless transparent liquid with aromatic odor, specific gravity 0.861, melting point 13.2°C, boiling point 138.5°C, flash point 25°C, miscible with ethanol, ether, acetone and other organic solvents, flammable, slightly more toxic than ethanol, Its vapor and air can form an explosive mixture, which is used to produce terephthalic acid, and then produce polyester resins such as ethylene terephthalate and butylene glycol ester. Polyester resin is used to produce polyester fibers, polyester sheets, and polyester resins. The raw material of the ester hollow container, when producing p-xylene, often uses the adsorption separation method to absorb p-xylene. After the adsorption, it needs to use a desorbent for desorption. Therefore, after the material is discharged, it is necessary to add a desorben...

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Problems solved by technology

[0002] P-xylene is a colorless transparent liquid with aromatic odor, specific gravity 0.861, melting point 13.2°C, boiling point 138.5°C, flash point 25°C, miscible with ethanol, ether, acetone and other organic solvents, flammable, slightly more toxic than ethanol, Its vapor and air can form an explosive mixture, which is used to produce terephthalic acid, and then produce polyester resins such as ethylene terephthalate and butylene glycol ester. Polyester resin is used to produce polyester fibers, polyester sheets, and polyester resins. The raw material of the ester hollow container, when producing p-xylene, often uses the adsorption separation method to absorb p-xylene. After the adsorption, it needs to use a desorbent for desorption. Therefore, after the material is discharged, it is necessary to add a desorbent for desorption. The adsorption separation very inefficient way

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