Production method of epoxy fatty acid methyl ester

A technology of epoxy fatty acid methyl ester and fatty acid methyl ester, which is applied in the production field of epoxy fatty acid methyl ester, can solve problems such as hidden dangers of safety and environmental protection, and achieve the effect of high purity

Active Publication Date: 2015-05-06
湖北赛恩利精细化工有限公司
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a production method of epoxy fatty acid methyl ester, which uses waste oil as a raw material to make epoxy fatty acid methyl ester, thereby solving the problems of safety and environmental protection hidden dangers in the existing waste oil, and effectively Reduce the preparation cost of epoxy fatty acid methyl ester

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The production method of this epoxy fatty acid methyl ester comprises the following steps:

[0021] A. Remove the solid matter contained in the waste oil to be treated, then heat to 70°C, and filter through the nano-overfrequency vibration membrane group to obtain the waste oil pretreatment solution;

[0022] B, the waste oil pretreatment liquid prepared in step A is put into a stirrer, and under stirring condition, the concentrated sulfuric acid that accounts for 0.5% of the waste oil pretreatment liquid quality is added therein, stirred evenly, heated to 65° C., dripping Add methanol that accounts for 8% of the mass of the waste oil pretreatment solution, stir at a constant temperature for 12 hours, then stand for stratification, and take the upper layer of liquid to obtain crude fatty acid methyl esters;

[0023] C, the thick fatty acid methyl ester that step B makes is put into rectifying tower, be 200 ℃ of temperature at temperature, and rectify under the condition...

Embodiment 2

[0028] The production method of this epoxy fatty acid methyl ester comprises the following steps:

[0029] A. Remove the solid substances contained in the waste oil to be treated, then heat to 80°C, and filter through the nano-overfrequency vibration membrane group to obtain the waste oil pretreatment solution;

[0030] B, the waste oil pretreatment liquid prepared in step A is put into a stirrer, and under stirring condition, the concentrated sulfuric acid that accounts for 0.8% of the waste oil pretreatment liquid quality is added therein, stirred evenly, heated to 75° C., dripping Add methanol that accounts for 11% of the quality of the waste oil pretreatment solution, stir at a constant temperature for 8 hours, then stand for stratification, and take the upper layer of liquid to obtain crude fatty acid methyl esters;

[0031] C, the thick fatty acid methyl ester that step B makes is put into rectifying tower, be 220 ℃ of temperature at temperature, and rectify under the co...

Embodiment 3

[0036] The production method of this epoxy fatty acid methyl ester comprises the following steps:

[0037] A. Remove the solid substances contained in the waste oil to be treated, then heat to 75°C, and filter through the nano-overfrequency vibration membrane group to obtain the waste oil pretreatment solution;

[0038] B, the waste oil pretreatment liquid prepared in step A is put into a stirrer, the concentrated sulfuric acid that accounts for 0.6% of the quality of the waste oil pretreatment liquid is added therein under stirring conditions, stirred evenly, heated to 70° C., dripping Add methanol that accounts for 9% of the mass of the waste oil pretreatment solution, stir at a constant temperature for 10 hours, then stand for stratification, and take the upper layer of liquid to obtain crude fatty acid methyl esters;

[0039] C, the thick fatty acid methyl ester that step B makes is put into rectifying tower, be 210 ℃ of temperature at temperature, and rectify under the co...

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 epoxy fatty acid methyl ester, belonging to the technical field of chemical product preparation. The production method comprises the steps of firstly, preparing an illegal cooking oil pretreatment solution from illegal cooking oil to be treated, adding concentrated sulfuric acid, stirring, heating, dropwise adding methanol, stirring at constant temperature, standing for layering, extracting a supernatant liquid to obtain coarse fatty acid methyl ester, placing coarse fatty acid methyl ester into a rectifying tower, and rectifying to obtain refined fatty acid methyl ester; placing fatty acid methyl ester into a reaction kettle, adding salicylic acid and a specific catalyst, heating, then, adding hydrogen peroxide and concentrated sulfuric acid, stirring, standing for layering, and extracting a supernatant liquid to obtain coarse epoxy fatty acid methyl ester; and rectifying coarse epoxy fatty acid methyl ester to obtain refined epoxy fatty acid methyl ester. According to the production method, the illegal cooking oil is used as the main raw material, so that the traditional scheme that fatty acid methyl ester is directly used as a preparation raw material is substituted, not only is the illegal cooking oil utilized sufficiently, but also the production cost of finished products of epoxy fatty acid methyl ester can be greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of chemical product preparation, and in particular relates to a production method of epoxy fatty acid methyl ester. Background technique [0002] Epoxy fatty acid methyl ester is a light yellow liquid at room temperature, and is a new type of non-toxic and odorless environmentally friendly plasticizer and stabilizer. At present, epoxy fatty acid methyl esters are mainly prepared directly from fatty acid methyl esters. However, due to the high price of fatty acid methyl esters, the preparation cost of epoxy fatty acid methyl esters is too high. [0003] Gutter oil generally refers to all kinds of inferior oils that exist in life, such as recycled edible oil, repeatedly used frying oil, etc. The emergence of waste oil will not only pollute the environment on the one hand, but on the other hand, there may be serious hidden dangers of food safety caused by the return of waste oil to the dining table. In order ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C07D303/42C07D301/12
CPCC07D301/12C07D303/42
Inventor 吴俊荣
Owner 湖北赛恩利精细化工有限公司
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