Production method of epoxidized soybean oil

A technology of epoxidized soybean oil and production method, which is applied in the direction of organic chemistry, can solve the problems of difficult control of reaction temperature, high cost of sewage treatment, slow epoxidation speed, etc., to reduce sewage production, save sewage treatment burden, and react The effect of less by-products

Active Publication Date: 2019-03-29
广东宏力达合成材料科技有限公司
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] CN86104989A discloses a kind of production method of epoxy soybean oil, this method reacts 7~8 hours with soybean oil, 39% hydrogen peroxide, concentrated sulfuric acid, glacial acetic acid, one-step synthesis product epoxy soybean oil, epoxy value is at 6.0-6.4, The epoxy group generated by this method is easy to open the ring, especially in the later stage of epoxidation, because the concentration of oxidant hydrogen peroxide decreases, the epoxidation speed is slow, the production cycle is long, and the reaction temperature is not easy to control
Among them, the specific steps of series connection epoxidation treatment are as follows: (1) Add soybean oil, hydrogen peroxide, formic acid and concentrated sulfuric acid into the first reaction kettle connected in series according to the ratio and keep stirring, and react under the condition of 60-80°C. After 2.5-4.0 hours, remove the water layer to obtain epoxidized soybean oil A; (2) mix epoxidized soybean oil A, hydrogen peroxide, formic acid and concentrated sulfuric acid in a mass ratio of 1: 0.84-0.90: 0.03-0.10: 0.004 -0.006 is added to the second reaction kettle and continuously stirred, wherein the concentration of hydrogen peroxide is 23-26%, under the co

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Production method of epoxidized soybean oil
  • Production method of epoxidized soybean oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) Take 100g of hydrogen peroxide, 3g of formic acid, 0.1g of phosphotungstic heteropolyacid and 0.2g of manganese benzoate with a concentration of 55%, add them to the autoclave successively, stir at a rotating speed of 200rpm for 2h, cool to 50°C, and obtain Peroxyformic acid mixture;

[0034] (2) in the peroxyformic acid mixture obtained in step (1), slowly add 120g soybean oil dropwise, control the flow rate of soybean oil, make it all dripped in 0.8h; in the dropping process, feed 10L of oxygen, control The stirring speed is 200rpm, the temperature is 60°C, and the pressure is 0.9Mpa, and the reaction is carried out for 2h to obtain the crude epoxidized soybean oil;

[0035] (3) the crude epoxidized soybean oil obtained in step (2) is subjected to alkali washing, water washing and vacuum distillation according to conventional technical means to obtain the epoxidized soybean oil product.

Embodiment 2

[0037] (1) take 100g of hydrogen peroxide, 10g of formic acid, 0.3g of phosphotungstic heteropolyacid and 0.6g of manganese benzoate with a concentration of 65%, add them to the autoclave successively, stir at a rotating speed of 450rpm for 1h, cool to 60°C, and obtain Peroxyformic acid mixture;

[0038] (2) in the peroxyformic acid mixture obtained in step (1), slowly add 180g soybean oil dropwise, control the flow rate of soybean oil, and make it all dripped in 1h; in the dropwise addition process, feed 50L of oxygen, and control stirring The speed is 450rpm, the temperature is 60°C, and the pressure is 1.2Mpa, and the reaction is performed for 1h to obtain crude epoxidized soybean oil;

[0039] (3) the crude epoxidized soybean oil obtained in step (2) is subjected to alkali washing, water washing and vacuum distillation according to conventional technical means to obtain the epoxidized soybean oil product.

Embodiment 3

[0041](1) Take 60% hydrogen peroxide 100g, 8g formic acid, 0.05g phosphotungstic heteropolyacid and 0.25g manganese benzoate, add them to the autoclave successively, stir for 1h at a speed of 300rpm, cool to 55°C, and get peroxyformic acid mixture;

[0042] (2) in the formic acid peroxide mixture that step (1) obtains, slowly drip 160g soybean oil, control the flow rate of soybean oil, make it drop completely in 0.5h; During the dropping process, feed 15L oxygen, control The stirring speed is 450rpm, the temperature is 60°C, the pressure is 1.0Mpa, the reaction is 1.5h, and the crude epoxy soybean oil is obtained;

[0043] (3) The crude epoxidized soybean oil obtained in step (2) is subjected to alkali washing, water washing, and vacuum distillation according to conventional technical means to obtain the finished epoxidized soybean oil.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a production method of epoxidized soybean oil. The invention adopts a two-step synthesis method, and the method includes the steps of: (1) adding hydrogen peroxide, formic acidand a catalyst into a high-pressure reaction kettle, conducting stirring and cooling to obtain peroxyformic acid; (2) adding soybean oil dropwise into the peroxyformic acid obtained by step (1), introducing oxygen, performing stirring and carrying out pressurizing reaction to obtain a crude epoxidized soybean oil product; and (3) conducting alkali washing, water scrubbing and reduced pressure distillation on the crude epoxidized soybean oil product obtained by step (2) to obtain an epoxidized soybean oil finished product. Compared with the prior art, the method provided by the invention has the advantages of low cost, good reaction temperature controllability, fast reaction speed and few by-product, and the obtained product has good quality.

Description

technical field [0001] The invention belongs to the technical field of inorganic chemical synthesis, and in particular relates to a production method of epoxidized soybean oil. Background technique [0002] Epoxidized soybean oil is currently widely used non-toxic non-benzene environment-friendly plastic additives-plasticizer. It has the dual properties of plasticization and thermal stability, and is non-toxic, safe and environmentally friendly. Therefore, it is widely accepted by the plastic products industry. It is widely used in plastics, coatings, new polymer materials, rubber and other industrial fields. With the improvement of environmental protection awareness in various countries in the world, the toxicity of plasticizers has attracted more and more attention; plasticizer phthalates are suspected of causing cancer, and many developed countries have banned their use in medical and food packaging, daily necessities , toys and other plastic products. In addition, due ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C07D303/42C07D301/16
CPCC07D301/16C07D303/42
Inventor 徐文惠
Owner 广东宏力达合成材料科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap