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Preparation method of ethylene glycol gemini di-sec-octyl phthalate sodium sulfosuccinate

A technology of di-sec-octyl sodium sulfonate and ethylene glycol bis, which is applied in the direction of sulfonate preparation, chemical instruments and methods, organic chemistry, etc., can solve the problems of no literature reports, etc., achieve short reaction time and reduce equipment Requirement, low price effect

Inactive Publication Date: 2013-12-11
NANTONG UNIVERSITY
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Use ethylene glycol, maleic anhydride and 2-octyl alcohol as raw materials to prepare sodium 2-2-octyl ethylene glycol gemini succinate, and there is no literature report on this product at present

Method used

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  • Preparation method of ethylene glycol gemini di-sec-octyl phthalate sodium sulfosuccinate
  • Preparation method of ethylene glycol gemini di-sec-octyl phthalate sodium sulfosuccinate
  • Preparation method of ethylene glycol gemini di-sec-octyl phthalate sodium sulfosuccinate

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Embodiment Construction

[0021] A kind of preparation method of di-sec-octyl ethylene glycol gemini succinate comprises the following steps: the first step monoesterification reaction (I), weighed according to the ratio of maleic anhydride to ethylene glycol molar ratio of 2.1:1.0, Ethylene glycol and maleic anhydride are added in the reactor that is equipped with stirrer, thermometer and reflux condenser, add and account for 1% catalyst carbon-based solid acid of maleic anhydride quality (in beaker by m (p-toluenesulfonic acid): m (starch )=1:2 Add soluble starch and p-toluenesulfonic acid, heat and dissolve with distilled water. After the solution is clear and transparent, cool to room temperature, evaporate into a viscous colloid with a rotary evaporator, put it in a muffle furnace and carbonize at 200°C for 8 hours Grind and pass through an 80-mesh sieve to obtain a carbon-based solid acid catalyst.) Introduce nitrogen, stir and raise the temperature to 100°C within 10 minutes and time it, keep the...

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Abstract

The invention discloses a preparation method of ethylene glycol gemini di-sec-octyl phthalate sodium sulfosuccinate. The preparation method of ethylene glycol gemini di-n-octyl phthalate sodium sulfosuccinate comprises the following steps: carrying out a mono-esterification reaction for combining maleic anhydride with two hydroxyls on ethylene glycol, so as to generate ethylene glycol di-maleic acid monoester, then carrying out a double-esterification reaction on ethylene glycol di-maleic acid monoester and sec-octyl alcohol to obtain ethylene glycol di-maleic anhydride di-sec-octyl phthalate, and finally carrying out a conjugate addition sulfonation reaction on ethylene glycol di-maleic anhydride di-sec-octyl phthalate and sodium hydrogen sulfite to obtain the ethylene glycol gemini di-sec-octyl phthalate sodium sulfosuccinate product, wherein a catalyst used in the mono-esterification reaction is carbon-based solid acid, and the carbon-based solid acid after the mono-esterification reaction is carried out is directly taken as a catalyst of the double-esterification reaction. The preparation method of ethylene glycol gemini di-sec-octyl phthalate sodium sulfosuccinate is simple, easy to operate and good in environmental protection property.

Description

technical field [0001] The invention relates to a preparation method of sodium di-sec-octyl sulfosuccinate of ethylene glycol gemini. Background technique [0002] Ethylene glycol gemini 2-2-octyl succinate sodium sulfosuccinate is designed in the molecule. The single-chain surfactant 2-2-octyl sulfosuccinate sodium salt is used as the ion head of the amphiphile molecule, and the linking group ethylene glycol is connected by a chemical bond. Gemini surfactants. In addition to all the advantages of single-chain surfactants, its surface activity also has lower surface tension, that is, higher surface activity. Due to its special structure and unique performance, it is widely used. Use ethylene glycol, maleic anhydride and sec-octanol as raw materials to prepare sodium di-sec-octyl ethylene glycol gemini succinate, and there is no literature report on this product at present. Contents of the invention [0003] The object of the present invention is to provide a kind of met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C303/32C07C309/17B01F17/10C09K23/10
Inventor 李建华华平喻红梅方略韬戴宝江张海滨张家骞刘骏峰
Owner NANTONG UNIVERSITY
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