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Heterogeneous reactor

A reactor and heterogeneous technology, applied in chemical/physical/physical chemical fixed reactors, chemical instruments and methods, feeding devices, etc., can solve the problem of affecting the conversion rate of raw materials, inability to fully contact the reaction, and increasing product impurities and other problems to achieve the effect of reducing the probability of production accidents, short response time and high response efficiency

Active Publication Date: 2022-02-01
ANSHAN HIFICHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the residence time is too short, it will lead to the inability to fully contact the reaction, affect the conversion rate of the raw material, and also increase the impurities in the product

Method used

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  • Heterogeneous reactor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0091] The heterogeneous reactor is set as follows: the height of the shell is 100cm, and the diameter of the reaction chamber is 60cm; the diameter of the first pipeline is 3cm, and the inner wall of the first pipeline is tangent to the inner wall of the reaction chamber; the diameter of the second pipeline is 1cm; the third pipeline The diameter is 3cm, the distance between the outlet of the third pipeline and the axis of the reaction chamber is 10cm, and the diameter of the fourth pipeline is 2cm; two first pipelines are arranged, and the two first pipelines are symmetrically arranged with the rotating shaft of the reaction chamber as the central axis; Two third pipelines are arranged, and the two third pipelines are symmetrically arranged with the rotation axis of the reaction chamber as the central axis; the axis of the third pipeline is set along the incident direction and the axis of the first pipeline is along the incident direction, and the axis of the reaction chamber ...

Embodiment 2

[0095]The other parameters of the heterogeneous reactor are the same as those in Example 1, the only difference is: the axis of the third pipeline is set along the incident direction and the axis of the first pipeline is along the incident direction, and the projection on the plane perpendicular to the axis of the reaction chamber is The included angle is 45°, the axis of the third pipeline is along the incident direction and the axis of the first pipeline is along the incident direction, and the included angle of the projection on the plane passing through the axis of the reaction chamber and parallel to the axis of the first pipeline is 45° .

[0096] 1,3-diiminoisoindoline was prepared by the above-mentioned reactor, and the ratio of 1,3-diiminoisoindoline in the product was 98.94% (molar ratio) after detection.

Embodiment 3

[0098] The other parameters of the heterogeneous reactor are the same as those in Example 1, the only difference is: the axis of the third pipeline is set along the incident direction and the axis of the first pipeline is along the incident direction, and the projection on the plane perpendicular to the axis of the reaction chamber is The included angle is 60°, the axis of the third pipeline is along the incident direction and the axis of the first pipeline is along the incident direction, and the included angle of the projection on the plane passing through the axis of the reaction chamber and parallel to the axis of the first pipeline is 30° .

[0099] The 1,3-diiminoisoindoline was prepared by the above reactor, and the proportion of 1,3-diiminoisoindoline in the product was 98.86% (molar ratio) after detection.

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Abstract

The heterogeneous reactor comprises a shell, a first pipeline, a second pipeline, a third pipeline, a fourth pipeline and a fifth pipeline, wherein the shell is cylindrical, and a cylindrical reaction cavity is formed in the shell; the first pipeline is fixedly connected with the side wall of the shell, the interior of the first pipeline is communicated with the reaction cavity, and the axis of the first pipeline and the axis of the reaction cavity are perpendicular and not coplanar; the second pipeline is connected to the first pipeline, and the interiors of the pipelines are communicated; the third pipeline is fixedly connected with the bottom plate, the interior of the third pipeline is communicated with the reaction cavity, and the axis of the third pipeline and the axis of the reaction cavity are not coplanar; the fourth pipeline is connected to the third pipeline, and the interiors of the pipelines are communicated; and the fifth pipeline is arranged at the center of the bottom plate; the interior of the pipeline is communicated with the reaction cavity. According to the invention, all raw materials can be rapidly mixed, contacted and reacted, continuous production can be realized, the structure is simple, and the use is convenient.

Description

technical field [0001] The invention relates to a heterogeneous reactor, in particular to a heterogeneous reactor used for rapid contact and continuous reaction after different raw materials are fluidized. Background technique [0002] In the chemical industry, in the scene where two or more raw materials need to be mixed and reacted, solvents are usually used to dissolve the raw materials and then mixed and reacted. It is often encountered that the efficiency of mixing and contact between raw materials is low, the reaction time is long, More side effects and other issues. For example, 1,3-diiminoisoindoline is an important organic synthesis intermediate, which usually uses urea, sodium hydroxide and phthalic anhydride as raw materials and ammonium molybdate as a catalyst for mixed reaction to obtain the target product. The preparation of 1,3-diiminoisoindoline is carried out in liquid phase or solid phase. During the process of mixing and stirring each raw material and car...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J19/24B01J4/00
CPCB01J19/24B01J4/001B01J2204/002
Inventor 权于史伟杰王贤丰张硕高振聪王祎博
Owner ANSHAN HIFICHEM CO LTD