Method for preparing disodium ethylene glycol bis(2-ethyl-1-butyl)sulfosuccinate

A technology of bissulfosuccinic acid and ethylene glycol, applied in the preparation of sulfonates, organic chemistry and other directions, can solve problems such as no literature reports, and achieve the requirements of short reaction time, reduced consumption, and reduced equipment. Effect

Inactive Publication Date: 2012-02-15
临沂小豆娃食品有限公司
View PDF1 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Take ethylene glycol, maleic anhydride and 2-ethyl-1-butanol as raw material to prepare ethylene

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
  • Method for preparing disodium ethylene glycol bis(2-ethyl-1-butyl)sulfosuccinate
  • Method for preparing disodium ethylene glycol bis(2-ethyl-1-butyl)sulfosuccinate
  • Method for preparing disodium ethylene glycol bis(2-ethyl-1-butyl)sulfosuccinate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] A kind of preparation method of di(2-ethyl-1-butyl) sodium ethylene glycol bissulfosuccinate, comprises the following steps: the first step monoesterification reaction, by maleic anhydride and ethylene glycol molar ratio Take ethylene glycol and maleic anhydride in the ratio of 2.1: 1.0 and add them to the reaction kettle equipped with stirrer, thermometer and reflux condenser, then add the carbon-based solid acid catalyst (carbon-based solid acid catalyst) that accounts for 2% of the maleic anhydride mass. The preparation method of acid catalyst: add soluble starch and p-toluenesulfonic acid in beaker by m (p-toluenesulfonic acid): m (starch)=1: 2, heating dissolves with distilled water. Treat that solution is clear and transparent, cool to room temperature, use Rotary evaporator evaporated into a viscous colloid, placed in a muffle furnace and carbonized at 200 ° C for 8 h. Grinding, sieving through an 80-mesh sieve to obtain a carbon-based solid acid catalyst), nitrog...

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 method for preparing disodium ethylene glycol bis(2-ethyl-1-butyl)sulfosuccinate. The method comprises the following steps of: combining maleic anhydride and two hydroxyl radicals on ethylene glycol to perform mono-esterification to obtain ethylene glycol bis(monomaleate); performing di-esterification on the ethylene glycol bis(monomaleate) and 2-ethyl-1-butanol to obtain ethylene glycol bis(2-ethyl-1-butyl) dimaleate; and performing conjugate addition on the ethylene glycol bis(2-ethyl-1-butyl) dimaleate and sodium hydrogensulfite to obtain the product, wherein whenthe maleic anhydride is reacted with the ethylene glycol, a carbon-based solid acid catalyst is adopted. The method is simple, and easy to implement; the consumption of raw materials is reduced; the cost is saved, and impurities of the product are reduced.

Description

technical field [0001] The invention relates to a preparation method of bis(2-ethyl-1-butyl) sodium ethylene glycol bissulfosuccinate. Background technique [0002] Di(2-ethyl-1-butyl) sodium ethylene glycol bissulfosuccinate is a single-chain surfactant designed in the molecule (2-ethyl-1-butyl) sodium sulfosuccinate The salt acts as the ionic head of two amphiphilic molecules, and the gemini surfactant is formed by connecting the linking group ethylene glycol through a chemical bond. In addition to all the advantages of traditional surfactants with a single alkane chain and a single ion head, its surface activity also has a lower surface tension, that is, a higher surface activity. Due to its special structure and unique performance, it is more widely used. For example, in addition to being used as high-efficiency detergents, emulsifiers, high-efficiency solubilizers, emulsions and foam stabilizers, viscosity enhancers, etc. in the conventional field, they are also used ...

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): C07C309/17C07C303/32
Inventor 华平喻红梅李建华戴宝江施磊朱国华石玉军方略韬叶俊单佳慧
Owner 临沂小豆娃食品有限公司
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