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Crude aniline purification device for aniline production

A purification device and crude aniline technology, applied in amino compound purification/separation, organic chemistry, chemical instruments and methods, etc., can solve problems such as impurity of aniline components, aniline thermal decomposition, etc., to avoid impurity of aniline components, avoid aniline Thermal decomposition, the effect of avoiding excessive temperature

Inactive Publication Date: 2021-12-07
东营职业学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the existing multiple boiling method to purify crude aniline, it is easy to cause the purified aniline to be impure, and the multiple boiling will cause the thermal decomposition of aniline. The technical problem to be solved is to provide a method that avoids multiple boiling , Crude aniline purification device for aniline production to avoid thermal decomposition

Method used

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  • Crude aniline purification device for aniline production
  • Crude aniline purification device for aniline production
  • Crude aniline purification device for aniline production

Examples

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Effect test

Embodiment 1

[0031] A crude aniline purification device for aniline production, such as figure 1 and figure 2 As shown, it includes a mounting frame 1, a mounting plate 2, an outer shell 3, a dehydration assembly 4 and a purification assembly 5. The top of the mounting frame 1 is provided with a mounting plate 2, and the inside of the mounting plate 2 is fixed with an outer shell 3. The mounting frame One side of 1 is provided with a dehydration assembly 4, and the dehydration assembly 4 communicates with the outer casing 3, and a purification assembly 5 is arranged in the installation frame 1, and the purification assembly 5 communicates with the dehydration assembly 4.

[0032] When using this equipment, the user discharges the crude aniline into the dehydration assembly 4 through the external equipment, and the crude aniline in the dehydration assembly 4 then flows downward into the heating part, and at the same time, the user starts the heating part to work, and the heating part works...

Embodiment 2

[0034] On the basis of Example 1, such as Figure 3-12 As shown, the dehydration assembly 4 includes a water tank 401, an output pipe 402, a first solenoid valve 403, a first water inlet pipe 404, a first condenser 405, a first air inlet pipe 406, a dehydration tank 407, a first water outlet pipe 408, The second solenoid valve 409, the second water inlet pipe 410, the horizontal plate 412, the heating box 414, the support block 415, the third water inlet pipe 416, the temperature regulator 417 and the first air outlet pipe 418, the water tank 401 is located on the left side of the installation frame 1 side, the left wall of the water tank 401 is embedded with an output pipe 402, the output pipe 402 is provided with a first solenoid valve 403, the top of the water tank 401 is provided with a first water inlet pipe 404, and the upper part of the first water inlet pipe 404 is provided with a first Condenser 405, first air inlet pipe 406 is arranged on the top of first condenser 4...

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Abstract

The invention relates to the technical field of chemical equipment, in particular to a crude aniline purification device for aniline production. The technical problem to be solved is to provide the crude aniline purification device for aniline production, which can avoid multiple boiling and thermal decomposition. According to the technical scheme, the crude aniline purification device for aniline production comprises a mounting frame, a mounting disc, an outer shell, a dehydration assembly and a purification assembly; and the mounting disc is arranged at the top of the mounting frame, the outer shell is fixedly connected to the interior of the mounting disc, the dehydration assembly is arranged on one side of the mounting frame and communicates with the outer shell, and a purification assembly is arranged in the mounting frame and communicates with the dehydration assembly. Water in crude aniline is conveniently taken away through the dehydration assembly, and dehydration work of the crude aniline is completed; and repeated boiling purification of the aniline is avoided through work of the purification assembly, the problem that aniline components are not pure after repeated boiling purification is avoided, and the problem of aniline thermal decomposition caused by repeated boiling of the aniline is avoided.

Description

technical field [0001] The invention relates to the technical field of chemical equipment, in particular to a crude aniline purification device for aniline production. Background technique [0002] Aniline, also known as aminobenzene, is a colorless oily liquid that decomposes when heated to 370°C. It is slightly soluble in water and easily soluble in organic solvents such as ethanol and ether. Aniline is one of the most important amine substances and is mainly used in the manufacture of dyes. , drugs, resins, can also be used as a rubber vulcanization accelerator, etc., and it can also be used as a black dye itself. Its derivative methyl orange can be used as an indicator for acid-base titration. [0003] When the existing crude aniline is purified, the crude aniline is usually boiled multiple times to form a vapor, and then the vapor is cooled to form a liquid to complete the purification of the crude aniline. In this way, the purified aniline is likely to be impure, and...

Claims

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Application Information

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IPC IPC(8): B01D1/00B01D1/30C07C211/46C07C209/84
CPCB01D1/00B01D1/30C07C211/46C07C209/84
Inventor 李美红
Owner 东营职业学院
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