Continuous hydrolyzing device

A technology of hydrolysis device and rectification tower, which is used in hydrolysis preparation, separation/purification of carboxylic acid compounds, preparation of organic compounds, etc., can solve the problems of poor catalyst mass transfer effect, reduction of workshop utilization rate, strong corrosiveness of sulfuric acid, etc. , to achieve the effect of shortening the hydrolysis time, reducing energy consumption, and shortening the hydrolysis time

Inactive Publication Date: 2017-01-04
DAFENG YUELONG CHEM
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Problems solved by technology

[0003] (1) Because sulfuric acid solution and isopropyl cyclopropanate are two reactions in the hydrolysis process, the mass transfer effect of the catalyst is poor, so that the single batch of hydrolysis time reaches more than 80 hours;
[0004] (2) The hydrolysis reaction kettle is 5000L, and the sulfuric acid acid mixing kettle is also 5000L, which occupies a large area and greatly reduces the uti

Method used

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  • Continuous hydrolyzing device

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[0016] In order to further illustrate the technical means adopted and the technical effects achieved by the present invention, a detailed description will be given below with reference to the drawings and embodiments.

[0017] Refer to figure 1 , Is a schematic diagram of the structure of the present invention. In this embodiment, the continuous hydrolysis device includes a reboiler 100, a rectification tower 200, and a condenser 300. The rectification tower 200 is provided with a catalytic section 210, and the catalytic section 210 is provided with a solid acid catalyst 211, The catalytic section 210 on the rectifying tower 200 is provided with a material inlet 212, the reboiler 100 is connected to the catalytic section 210, and the condenser 300 is connected to the top of the rectifying tower 200. The solid acid catalyst 211 is a molecular sieve catalyst.

[0018] The working principle of the present invention is that the raw material isopropyl cyclopropanoate enters the cataly...

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Abstract

The invention provides a continuous hydrolyzing device. The continuous hydrolyzing device comprises a reboiler, a rectifying tower and a condenser. A catalyzing section is arranged in the rectifying tower and provided with a sold acid catalyst, a material feeding port is formed in the catalyzing section on the rectifying tower, the reboiler is communicated to the catalyzing section, and the condenser is communicated to the top of the rectifying tower. The continuous hydrolyzing device has the advantages of being capable of carrying out continuous reactions, small in occupied area, short in hydrolyzing time, capable of reducing energy consumption and reducing potential safety hazards and the like.

Description

technical field [0001] The invention relates to a hydrolysis device, in particular to a continuous hydrolysis device of isopropyl cyclopropanate. Background technique [0002] In the existing cyclopropanic acid production process, there is a step in which isopropyl cyclopropanate is hydrolyzed under the catalysis of 40% sulfuric acid to produce cyclopropanic acid. This method can effectively complete the hydrolysis of isopropyl cyclopropanate, and No waste salts are produced (compared to alkaline hydrolysis). What prior art adopts is to add rectifying tower in 5000L hydrolysis reactor, collects the isopropanol that generates while hydrolyzing, thereby makes chemical equilibrium carry out more thoroughly, but this method also has some weak points, and concrete problem is as follows: [0003] (1) Because sulfuric acid solution and isopropyl cyclopropanate are two reactions in the hydrolysis process, the mass transfer effect of the catalyst is poor, so that the single batch of...

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Application Information

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IPC IPC(8): C07C29/09C07C31/10C07C61/04C07C51/09C07C29/80C07C51/44
CPCC07C29/095C07C29/80C07C51/09C07C51/44C07C31/10C07C61/04
Inventor 张强龙李艳军
Owner DAFENG YUELONG CHEM
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