High-quality epoxy ester production method with low energy consumption and little wastewater

A technology of epoxy oil ester and production method, which is applied in the direction of organic chemistry, can solve problems such as separation difficulties, emulsification, loss of materials and time, and achieve the effects of reducing material consumption, energy consumption, and waste water discharge

Inactive Publication Date: 2009-06-03
JIANGNAN UNIV
View PDF0 Cites 23 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the shortcoming of this technique is that the crude product needs to be washed five times to obtain a qualified product, and a large amount of waste water is unavoidably produced in the process, because the proportion of crude epoxy soybean oil and epoxy fatty acid

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
  • High-quality epoxy ester production method with low energy consumption and little wastewater
  • High-quality epoxy ester production method with low energy consumption and little wastewater

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0017] Example 1

[0018] According to the weight ratio of soybean oil: hydrogen peroxide: formic acid=1:1.0:0.15, weigh a certain amount of soybean oil with an iodine value of 130gI2 / 100g and 85% formic acid in a three-necked flask equipped with a stirrer, a thermometer and a dropping funnel The three-necked flask is placed in a water bath system with automatic temperature control, stirred, and 35% hydrogen peroxide is added dropwise, after 5-10 minutes, the temperature rises to 60℃, and then the heat preservation starts. The holding time is 5h, and the epoxidation reaction ends. . Transfer the reaction mixture to a separatory funnel, let it stand for a while to separate the water layer, wash the ester layer with distilled water at about 70°C once, and the water consumption is about 40% of the volume of the ester layer, and then the product is distilled by steam distillation for 3 to 4 hours After deep acid reduction and drying, the product epoxy soybean oil is obtained after coo...

Example Embodiment

[0019] Example 2

[0020] According to the weight ratio of fatty acid methyl ester: hydrogen peroxide: formic acid = 1:0.55:0.15, weigh a certain amount of fatty acid methyl ester (iodine value 120gI 2 / 100g) and 85% formic acid are placed in a three-necked flask equipped with a stirrer, a thermometer, and a dropping funnel. The three-necked flask is placed in a water bath system with automatic temperature control, stirred, and 35% hydrogen peroxide is added dropwise. After 10 minutes of dripping, the temperature was raised to 60°C and then the temperature was kept warm. The temperature was kept for 4 hours, and the epoxidation reaction ended. Transfer the reaction mixture to a separatory funnel, let it stand for a while to separate the water layer, wash the ester layer with distilled water at about 70°C once, and the water consumption is about 40% of the volume of the ester layer, and then the product is distilled by steam distillation for 3 to 4 hours After deep deacidification ...

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

PropertyMeasurementUnit
Acid valueaaaaaaaaaa
Acid valueaaaaaaaaaa
Acid valueaaaaaaaaaa
Login to view more

Abstract

A high-quality epoxy oil and ester production method with low energy consumption and little wastewater belongs to the technical field of fine chemical industry, energy conservation and emission reduction. The method comprises the following steps: selecting soybean oil or unsaturated fatty acid methyl (ethyl) esters as raw materials; adding hydrogen peroxide as oxygen source and formic acid as oxygen carrier; epoxidizing; washing with water for one time; distilling with steam to reduce acid and dry the product; and refining to obtain epoxy soybean oil or epoxy fatty acid methyl (ethyl) esters. The method has the advantages of low energy consumption, reduced wastewater emission, greatly shortened entire production cycle, high quality of the epoxy product and low acid value.

Description

technical field [0001] The present invention relates to a kind of preparation method of epoxy plasticizer, especially relate to a kind of low energy consumption, little waste water, the production method of high-quality epoxidized soybean oil or epoxidized fatty acid methyl (b) ester, belong to fine chemical industry and energy saving and reduction technical field. Background technique [0002] Epoxidized soybean oil and epoxidized fatty acid methyl (b) ester are currently widely used non-toxic, non-benzene ring-type environment-friendly plastic additives--plasticizers, which have dual properties of plasticizing and thermal stability, and have no Toxic, safe and environmentally friendly, so it is favored by the plastic product industry, and it is widely used in industrial fields such as plastics, coatings, new polymer materials, and rubber. With the improvement of environmental protection awareness in all countries in the world, the toxicity of plasticizers has attracted mo...

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): C07D301/12C07D303/42
Inventor 蒋平平刘伟伟魏猛陈旻
Owner JIANGNAN UNIV
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