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Preparation method of anacardol glycidol ether

A technology of glycidyl ether and cardanol, applied in the chemical field, can solve the problems of large amount of epichlorohydrin, deep reaction color, complicated operation, etc., and achieve the effect of reducing color, accelerating layering, and simple operation

Inactive Publication Date: 2012-07-11
上海美东生物材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a kind of preparation method of cardanol glycidyl ether, the preparation method of described this cardanol glycidyl ether will solve the excessive consumption of epichlorohydrin in the process of preparing cardanol glycidyl ether in the prior art , deep color response, slow layering, complex operation technical problems

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  • Preparation method of anacardol glycidol ether
  • Preparation method of anacardol glycidol ether

Examples

Experimental program
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Effect test

Embodiment 1

[0017] 210 grams of cardanol, 77 grams of epichlorohydrin, 82.6 grams of sodium hydroxide solution of a certain concentration, on a 1L four-necked reaction flask, agitator, thermometer, condenser, gas outlet, gas outlet (feeding port) are equipped with ), put in 210 grams of cardanol and stir with nitrogen for 2 minutes to get rid of the air, add 77 grams of epichlorohydrin, continue to stir and let out the air, control the temperature and add 82.6 grams of sodium hydroxide solution at 40 to 50 degrees Celsius, and the dropping time is fast and then slow. After the dropwise addition, the temperature was raised to 75 degrees centigrade, and the temperature was kept for 8 hours. After static settling, the material is discharged and centrifuged to obtain the first batch of products with light color, clear and transparent product, and the filter residue is dried to obtain a large amount of high-purity sodium chloride, which can be used in industry.

[0018] Product quality standa...

Embodiment 2

[0020] 210 grams of cardanol, 70 grams of epichlorohydrin, 77 grams of sodium hydroxide solution of a certain concentration, on a 1L four-necked reaction flask, agitator, thermometer, condenser, gas outlet, gas outlet (feeding port) are equipped with ), put in 210 grams of cardanol and stir with nitrogen for 2 minutes to get rid of the air, add 70 grams of epichlorohydrin, continue to stir and let out the air, control the temperature at 40 to 50 degrees Celsius and add 77 grams of sodium hydroxide solution, and the dropping time is fast and then slow. After the dropwise addition, the temperature was raised to 75 degrees centigrade, and the temperature was kept for 7.5 hours. After static settling, the material is discharged and centrifuged to obtain the first batch of products with light color, clear and transparent product, and the filter residue is dried to obtain a large amount of high-purity sodium chloride, which can be used in industry.

[0021] Product quality standard...

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Abstract

The invention provides a preparation method of anacardol glycidol ether. The method comprises the following steps of: weighing substances including anacardol, epoxy chloropropane and sodium hydrate in the molar ratio of 1:(0.8-1.2):(0.7-1.2); adding the anacardol into a reaction container; stirring; introducing nitrogen gas and exhausting air; adding epoxy chloropropane 1-5 minutes later; continually stirring; controlling the temperature at 40-50 DEG C; adding sodium hydrate; dropwise adding, and raising the temperature to 70-100 DEG C; preserving heat for 4-9 hours; standing, settling and discharging; and centrifugally filtering to obtain a first batch of light color clarified transparent product serving as anacardol glycidol ether. According to the preparation method, the ratio of the epoxy chloropropane is lowered, and the color of an epoxy active diluent synthesized by using anacardol is lightened greatly. Meanwhile, delamination is quick, and operation is easier.

Description

Technical field: [0001] The invention relates to the field of chemistry, in particular to a light-colored cardanol epoxy reactive diluent, in particular to a preparation method of cardanol glycidyl ether. Background technique: [0002] Light-colored cardanol epoxy reactive diluent - cardanol glycidyl ether, its main structure is a C15 unsaturated long chain and a glycidyl ether group on the ortho position of the benzene ring, so it has both benzene ring compounds characteristics, but also the flexibility of aliphatic compounds; the phenylene ether structure in its molecule is convenient, it has better compatibility with bisphenol A epoxy resin and phenolic resin, and the impact performance is also superior; in addition, because of its normal temperature It has a low viscosity and good dilution effect, and has a certain dilution effect. Therefore, it is often used as a reactive diluent for epoxy resins, and is widely used in solvent-free coatings, castables, potting materials...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D303/23
Inventor 黎明
Owner 上海美东生物材料股份有限公司
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