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Production device for 3-acetyl-6-methyl-2H-pyran-2,4(3H)-dione

A production device, the technology of piperonone, applied in the field of compound synthesis device, can solve complex problems and the like

Inactive Publication Date: 2018-07-03
CHENGDU BO LUO KE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing production devices are relatively complicated, and 6-methyl-3-acetyl-2-piperone is used as a toughening agent. The pros and cons of its production devices are of great economic significance for improving product quality and reducing by-product content

Method used

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  • Production device for 3-acetyl-6-methyl-2H-pyran-2,4(3H)-dione
  • Production device for 3-acetyl-6-methyl-2H-pyran-2,4(3H)-dione

Examples

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Effect test

example 1

[0007] The production equipment of 6-methyl-3-acetyl-2-piperone mainly includes: reflux kettle, temperature controller, cooler, filter, collection tank, dissolution kettle, decolorization kettle, filter, neutralization kettle, Crystallization tank, dryer, and finished product tank, among which, the temperature controller is connected with the reflux tank and the cooler respectively, the filter is connected with the cooler and the collection tank respectively, the dissolution tank is connected with the collection tank and the decolorization tank respectively, and the filter The decolorization kettle and the neutralization kettle are connected respectively, the crystallization kettle is connected with the neutralization kettle and the filter respectively, and the dryer is connected with the crystallization kettle and the finished product tank respectively, among which, the jacket capacity of the reflux kettle is 230L, the heat exchange tube of the cooler The pipe diameter is 0.01...

example 2

[0011] The production equipment of 6-methyl-3-acetyl-2-piperone mainly includes: reflux kettle, temperature controller, cooler, filter, collection tank, dissolution kettle, decolorization kettle, filter, neutralization kettle, Crystallization tank, dryer, and finished product tank, among which, the temperature controller is connected with the reflux tank and the cooler respectively, the filter is connected with the cooler and the collection tank respectively, the dissolution tank is connected with the collection tank and the decolorization tank respectively, and the filter The decolorization kettle and neutralization kettle are respectively connected, the crystallization kettle is connected with the neutralization kettle and the filter respectively, and the dryer is connected with the crystallization kettle and the finished product tank respectively, among which, the jacket capacity of the reflux kettle is 240L, and the heat exchange tube of the cooler The pipe diameter is 0.01...

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Abstract

The invention discloses a production device for 3-acetyl-6-methyl-2H-pyran-2,4(3H)-dione. The device mainly includes a reflux kettle, a temperature controller, a cooler, a filter 1, a collecting tank,a dissolving kettle, a decolorizing kettle, a filter 2, a neutralization kettle, a crystallization kettle, a dryer and a finished-product tank, wherein the temperature controller is connected with the reflux kettle and the cooler, the filter 1 is connected with the cooler and the collecting tank, the dissolving kettle is connected with the collecting tank and the decolorizing kettle, the filter 2is connected with the decolorizing kettle and the neutralization kettle, the crystallization kettle is connected with the neutralization kettle and the filter 2, the dryer is connected with the crystallization kettle and the finished-product tank, and the reflux kettle has a jacket capacity of 230-240L.

Description

technical field [0001] The invention relates to a compound synthesis device, in particular to a production device for 6-methyl-3-acetyl-2-piperone. Background technique [0002] 6-methyl-3-acetyl-2-piperone can be used as a broad-spectrum feed preservative and toughening agent, and can also inhibit the growth of mold, yeast and bacteria. The antibacterial effect is basically not affected by pH, but Anticorrosion effect is best under neutral conditions. It is also used as a food preservative, and can be used for the preservation of fermented bean curd, pickles and orange sauce, with a maximum dosage of 0.3g / kg. It can also be used as an intermediate in the synthesis of clopyridine. Most of the existing production devices are relatively complicated, and 6-methyl-3-acetyl-2-piperone is used as a toughening agent. The quality of its production devices has important economic significance for improving product quality and reducing by-product content. Contents of the invention ...

Claims

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Application Information

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IPC IPC(8): C07D211/76
CPCC07D211/76
Inventor 李娟
Owner CHENGDU BO LUO KE TECH CO LTD