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A system for efficiently producing acetoallin using microreactors

A technology of microreactor and acetoallin, which is applied in the field of chemical industry, can solve the problems of no acetoallin microreactor system, reduced yield, severe oxidation, etc., to solve the problem of unsafe local high temperature and improve safety , the effect of high reaction yield

Active Publication Date: 2021-11-05
HAINAN ZHENGYE ZHONGNONG HIGH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the process of preparing acetoallicin with diethyl disulfide and nitric acid as raw materials, excessive addition of nitric acid will lead to severe oxidation, side reactions, lower yield and unsafe
Although many reactions in the prior art have been carried out using microreactors, there is no microreactor system for acetoallin, and there is no experience that can be used for reference. The applicant of the present invention has developed and applied microreactors to prepare acetoallicin through long-term research. allicin system

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A system for producing acetoallin. The system is provided with a nitric acid storage tank, a diethyl disulfide storage tank, and a glacial acetic acid storage tank. The storage tanks are connected to a microreactor through a delivery pipeline, and the delivery pipeline is provided with a non-return Valves, pressurizing devices, switching devices and gauges, input raw materials into the microreactor, the microreactor is equipped with a cooling device, the microreactor is connected to the gas-liquid separator, and the product outlet of the microreactor is equipped with a pressure and temperature measuring device, The gas-liquid separator has a stirring function and a temperature adjustment function. The reaction product continues to stir and react in the gas-liquid separator for 2 hours, and the temperature of the gas-liquid separator is maintained at about 80°C. The gas generated in the gas-liquid separator is connected through a transmission pipeline. Condenser, the cond...

Embodiment 2

[0039] A system for producing acetoallin. The system is provided with a nitric acid storage tank, a diethyl disulfide storage tank, and a glacial acetic acid storage tank. The storage tanks are connected to a microreactor through a delivery pipeline, and the delivery pipeline is provided with a non-return Valves, pressurizing devices, switching devices and gauges, input raw materials into the microreactor, the microreactor is equipped with a cooling device, the outlet is equipped with a pressure and temperature measuring device, the microreactor is connected to the tubular reactor, and the tubular reactor is connected Gas-liquid separator, the gas generated in the gas-liquid separator enters the exhaust gas recovery subsystem through the condenser, the gas-liquid separator is connected to the liquid separation tank, the liquid generated in the gas-liquid separator enters the liquid separation tank, and the liquid separation tank separates the oil phase And the water phase, the ...

Embodiment 3

[0041] A system for producing acetoallin. The system is provided with a nitric acid storage tank, a diethyl disulfide storage tank, and a glacial acetic acid storage tank. The storage tanks are connected to a microreactor through a delivery pipeline, and the delivery pipeline is provided with a non-return Valves, pressurizing devices, switching devices and meters, input raw materials into the microreactor, the microreactor is equipped with a cooling device, the microreactor is connected to the gas-liquid separator, and the gas generated in the gas-liquid separator is connected to the waste gas through the transmission pipeline The recovery subsystem, the gas-liquid separator is connected to multiple micro-reactors again, and the liquid products are respectively sent to multiple micro-reactors. Nitric acid is input into the reactor, and the products of multiple microreactors are input into the gas-liquid separator again. The gas generated in the gas-liquid separator enters the e...

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PUM

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Abstract

The invention relates to a system for efficiently producing acetolicin by using a microreactor. The system includes acetolicin raw material delivery pipeline, a microreactor, a gas-liquid separation device and a transmission pipeline, and is characterized in that the acetolicin raw material The delivery pipeline is connected to the microreactor, and the raw material of acetoallin is delivered to the microreactor. The microreactor is connected to the gas-liquid separation device. The reaction product output from the microreactor is input to the gas-liquid separation device through the transmission pipeline, and the gas-liquid separation device produces The liquid is reintroduced into the microreactor. The system of the invention is designed for the production of acetoallicin, can realize the production of acetoallicin with high purity and high reaction yield, solves the problem of unsafe local temperature being too high, and improves the safety of production.

Description

technical field [0001] The invention belongs to the field of chemical systems, and in particular relates to a system for efficiently producing acetoallin by using a microreactor. Background technique [0002] In the process of preparing acetoallicin with diethyl disulfide and nitric acid as raw materials, excessive addition of nitric acid will lead to severe oxidation, side reactions, lower yield and unsafe. Although many reactions in the prior art have been carried out using microreactors, there is no microreactor system for acetoallin, and there is no experience that can be used for reference. The applicant of the present invention has developed and applied microreactors to prepare acetoallicin through long-term research. Allicin system. The microreactor system of the present invention is used to prepare the acetoallicin, which realizes the high efficiency, safety and environmental protection of the acetoallicin preparation. Contents of the invention [0003] The inven...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J19/00B01D53/56B01D53/78C07C381/04
CPCB01D53/56B01D53/78B01D2251/504B01J19/0013B01J19/002B01J19/0046B01J19/0093C07C381/04
Inventor 薛照先何昆明林光东
Owner HAINAN ZHENGYE ZHONGNONG HIGH TECH