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Synthesis method and application of glycidyl acrylate

A technology of glycidyl ester and synthesis method, applied in the direction of organic chemistry, can solve the problems of expensive raw materials, high cost, unfavorable environmental protection, etc., and achieve the effect of improving economic benefits, increasing income, and mild process

Pending Publication Date: 2021-03-26
SHENZHEN PRECHEM FINE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Although glycidyl acrylate has many uses and a wide range of applications, the raw materials are expensive in the preparation process, the cost is high, and the synthesis method is complicated, which causes the price of synthetic glycidyl acrylate to be high, which is not conducive to large-scale production. Promotion, and there is a certain amount of waste generated during the synthesis process, which is not conducive to environmental protection

Method used

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  • Synthesis method and application of glycidyl acrylate

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Effect test

Embodiment 1

[0023] A synthesis method and application of glycidyl acrylate, comprising the following steps: Step 1, reaction synthesis; Step 2, vacuum rectification; Step 3, low-temperature rectification collection; Step 4, high-temperature rectification collection; Step 5, cooling store;

[0024] Wherein in the above step 1, sodium acrylate, epichlorohydrin and PEG400 were weighed respectively according to the ratio of parts by weight of 94:270:1.5, and then put into a 500-liter stirred tank, stirred evenly, heated and kept warm, and heated up under stirring To 60 ℃, heat preservation reaction time is 5h, after the reaction is completed, the crude glycidyl acrylate is produced, and the solid sodium chloride produced by the reaction can be washed with epichlorohydrin, dried, packaged and sold as a by-product, which significantly increases the income ;

[0025] Wherein in the above step two, the glycidyl acrylate crude product prepared in step one is subjected to vacuum vacuum rectificati...

Embodiment 2

[0030] A synthesis method and application of glycidyl acrylate, comprising the following steps: Step 1, reaction synthesis; Step 2, vacuum rectification; Step 3, low-temperature rectification collection; Step 4, high-temperature rectification collection; Step 5, cooling store;

[0031] Wherein in the above step 1, sodium acrylate, epichlorohydrin and PEG800 were weighed respectively according to the ratio of parts by weight of 94:270:1.5, and then put into a 500-liter stirred tank, stirred evenly, heated and kept warm, and the temperature was raised under stirring To 60 ℃, heat preservation reaction time is 5h, after the reaction is completed, the crude glycidyl acrylate is produced, and the solid sodium chloride produced by the reaction can be washed with epichlorohydrin, dried, packaged and sold as a by-product, which significantly increases the income ;

[0032] Wherein in the above step two, the glycidyl acrylate crude product prepared in step one is subjected to vacuum v...

Embodiment 3

[0037] A synthesis method and application of glycidyl acrylate, comprising the following steps: Step 1, reaction synthesis; Step 2, vacuum rectification; Step 3, low-temperature rectification collection; Step 4, high-temperature rectification collection; Step 5, cooling store;

[0038] Wherein in the above step 1, sodium acrylate, epichlorohydrin and PEG1000 were weighed respectively according to the ratio of parts by weight of 94:270:1.5, and then put into a 500-liter stirred tank, stirred evenly, heated and kept warm, and heated up under stirring To 60 ℃, heat preservation reaction time is 5h, after the reaction is completed, the crude glycidyl acrylate is produced, and the solid sodium chloride produced by the reaction can be washed with epichlorohydrin, dried, packaged and sold as a by-product, which significantly increases the income ;

[0039] Wherein in the above step two, the glycidyl acrylate crude product prepared in step one is subjected to vacuum vacuum rectificat...

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Abstract

The invention discloses a synthesis method and application of glycidyl acrylate. The synthesis method comprises the following steps: step 1, reaction synthesis, step 2, vacuum rectification, step 3, low-temperature rectification and collection, step 4, high-temperature rectification and collection, and step 5, cooling and storing, wherein in the step 1, a proper amount of epoxy chloropropane and sodium acrylate are taken and put into a stirring kettle, then a phase transfer catalyst is added, heating and heat preservation are performed after uniform stirring, and a glycidyl acrylate crude product is prepared after the reaction is completed, by adopting the phase transfer catalyst, the reaction yield is greatly improved, the process is mild, three wastes are avoided, the method is green, low-carbon and environment-friendly, the front fraction obtained by distillation is used for the next reaction, the yield is improved, the reaction can be intermittently operated by a tank reactor, theexpanded production is facilitated, and meanwhile, the solid sodium chloride generated by the reaction can be washed by epoxy chloropropane and then dried and packaged as a by-product for selling, sothat the economic benefit is improved, and the income is increased.

Description

technical field [0001] The invention relates to the technical field of chemical synthesis, in particular to a synthesis method and application of glycidyl acrylate. Background technique [0002] Glycidyl acrylate is a monomer with two functional groups. Compared with glycidyl methacrylate, it has relatively higher reactivity. Its molecular formula has both vinyl and epoxy groups, which can carry out different When the reaction is initiated by a free radical initiator, the double bond can be opened and other acrylate monomers can be copolymerized to form a linear polymer with epoxy groups, and the bifunctional structure of glycidyl acrylate itself makes acrylate Such polymers can be further cross-linked into a network structure, and its products have excellent weather resistance, UV resistance, water resistance and heat resistance. Therefore, it has been widely used in photosensitive materials, organic synthesis, polymer synthesis and polymerization. Modification and many ot...

Claims

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Application Information

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IPC IPC(8): C07D301/32C07D301/26C07D303/16
CPCC07D301/32C07D301/26C07D303/16Y02P20/10
Inventor 张春雨蓝俊杰
Owner SHENZHEN PRECHEM FINE CHEM CO LTD
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