Production method of fatty alcohol-polyoxyethylene ether triethanolamine sulfate containing amino acid groups

A technology of alcohol polyoxyethylene ether and triethanolamine salt, which is applied in chemical instruments and methods, preparation of sulfonic acid, preparation of sulfonate, etc., can solve problems such as weak degreasing ability, and achieve low production cost, simple operation, and improved The effect of degreasing performance

Inactive Publication Date: 2020-06-09
广东丽臣奥威实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its degreasing ability is weak, and it usually needs to be used in combination with other hydrophilic and oleophobic surfactants

Method used

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  • Production method of fatty alcohol-polyoxyethylene ether triethanolamine sulfate containing amino acid groups
  • Production method of fatty alcohol-polyoxyethylene ether triethanolamine sulfate containing amino acid groups
  • Production method of fatty alcohol-polyoxyethylene ether triethanolamine sulfate containing amino acid groups

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Embodiment 1

[0018] A kind of production method of fatty alcohol polyoxyethylene ether sulfate triethanolamine salt containing amino acid group, comprises the following steps:

[0019] S1 Add fatty alcohol polyoxyethylene ether into the reaction container, preheat to 25-27°C, slowly add chlorosulfonic acid while stirring, the reaction time is 2.5-3.5h, and continue to vacuumize during the reaction process. The degree of vacuum is 0.5-2.5 Pa to remove the hydrochloric acid generated by the reaction. In order to completely react the fatty alcohol polyoxyethylene ether, the molar mass ratio of the fatty alcohol polyoxyethylene ether to chlorosulfonic acid is 1:1.05-1.1.

[0020] The main reaction process is as follows:

[0021]

[0022] S2 Raise the temperature to 38-42°C, add 30% triethanolamine aqueous solution to carry out neutralization reaction, the reaction time is 1.5-2h, wherein, in order to introduce amino acid groups in subsequent reactions, triethanolamine and fatty alcohol poly...

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Abstract

The invention provides a production method of fatty alcohol-polyoxyethylene ether triethanolamine sulfate containing amino acid groups, wherein the production method comprises the following steps: adding fatty alcohol-polyoxyethylene ether into a reaction vessel, slowly adding chlorosulfonic acid while stirring, and continuously vacuumizing in the reaction process to remove hydrochloric acid generated in the reaction; adding a triethanolamine aqueous solution, and carrying out neutralization reaction; adding amino acid, and further carrying out neutralization reaction to obtain fatty alcohol-polyoxyethylene ether triethanolamine sulfate containing the amino acid groups. According to the production method of fatty alcohol-polyoxyethylene ether triethanolamine sulfate containing the amino acid groups, by adjusting the reaction steps and adding amino acid in the reaction process, the amino acid groups are introduced into the fatty alcohol-polyoxyethylene ether triethanolamine sulfate product, and the amino acid groups have the characteristics of hydrophilicity and oleophobicity, so that the deoiling performance of the product can be improved, the operation is simple, and the production cost is low.

Description

technical field [0001] The invention relates to the field of surfactant production, in particular to a production method of amino acid group-containing fatty alcohol polyoxyethylene ether sulfate triethanolamine salt. Background technique [0002] Fatty alcohol polyoxyethylene ether sulfate triethanolamine salt is a common anionic surfactant. Due to its low irritation, low toxicity, rich foam, strong detergency, excellent wetting power, and good dispersibility, it is often used It is used in washing products such as shampoo, body wash, and children's detergent. However, its degreasing ability is weak, and it usually needs to be used in combination with other hydrophilic and oleophobic surfactants. Therefore, to improve the characteristics of fatty alcohol polyoxyethylene ether sulfate triethanolamine salt, so that it has excellent degreasing performance, this problem needs to be solved urgently. Contents of the invention [0003] For above problem, the invention provides...

Claims

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Application Information

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IPC IPC(8): B01F17/04C07C303/28C07C303/30C07C309/68C07C303/08C07C309/10C09K23/04
CPCC07C303/08C07C303/28C07C303/30C09K23/00
Inventor 陈绍伟
Owner 广东丽臣奥威实业有限公司
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