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Polyether sulfonate anionic surfactant, and preparation method and application thereof

A technology of surfactant and sulfonate, which is applied in the field of polyether-type sulfonate anionic surfactant and its preparation, can solve the problem of low conversion rate of sulfamic acid sulfonation, unstable chemical properties, and non-compliance with green chemical industry And other problems, to achieve the effect of improving brightness and leveling, significant economic benefits, and stable product performance

Active Publication Date: 2017-03-22
WUHAN OXIRAN SPECIALTY CHEM CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are the following defects: although the oleum sulfonation method is a mature sulfonation method, it requires high equipment and will produce a large amount of waste acid to pollute the environment, so it is not an ideal sulfonation method; The product obtained by the maleic anhydride esterification sulfonation method contains ester bonds, its chemical properties are unstable, and it is easy to be hydrolyzed, which affects its application performance; the conversion rate of the sulfamic acid sulfonation method is low, and a large amount of inorganic salts are produced during the synthesis process. The process is cumbersome
However, the solvent method is used in the synthesis process, which pollutes the environment greatly; and the alkaline reagent is sodium hydride, which emits a large amount of hydrogen gas during the reaction process, which has certain safety hazards in large-scale production.
Zhao Fulin et al. used toluene as a solvent and metal sodium as an alkaline reagent to synthesize sulfonate surfactants by reacting nonylphenol polyoxyethylene ether with 1,3 propane sultone. This method also does not meet the requirements of green chemical industry. Require

Method used

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  • Polyether sulfonate anionic surfactant, and preparation method and application thereof
  • Polyether sulfonate anionic surfactant, and preparation method and application thereof
  • Polyether sulfonate anionic surfactant, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The preparation method of polyether type sulfonate anionic surfactant of the present invention:

[0029] Put 1mol fatty alcohol (C8 alcohol) polyether (n=6-24, m=2-10), 0.05mol cesium carbonate, 1.05mol potassium hydroxide (converted to 100% purity) into a three-necked flask, start stirring, and React at 40-50°C for 0.5h. Then dropwise add 1mol molten 1,3 propane sultone (melting point 40°C) into the flask, after 1h, the dropwise addition is completed, continue to stir at 40-50°C for 1h until the reaction is complete, and obtain a yellow to brownish yellow liquid material (n =6-15) or pasty material (n=20-24), yield>95%. The active matter content of the product is 75-85% as detected by the two-phase titration method, the water content is 1-5% as detected by the Karl Fischer moisture analyzer, and the pH is 9-12.

Embodiment 2

[0031] The preparation method of polyether type sulfonate anionic surfactant of the present invention:

[0032] With 1mol fatty alcohol (C12-14 alcohol) polyether (n=6-24, m=1-10), 0.05mol tetrabutylammonium bromide, 0.05mol catalyst carbon, 1.05mol potassium hydroxide (conversion is 100% purity) into a three-necked flask, start stirring, and react at 40-50°C for 0.5h. Then dropwise add 1mol molten 1,3 propane sultone (melting point 40° C.) into the flask, and after 1 hour, the dropwise addition is completed, and continue to stir at 40-50° C. for 1 hour until the reaction is complete, and a yellow to brownish yellow paste material ( n=20-24), the yield>95%. The active matter content of the product is 75-85% as detected by the two-phase titration method, the water content is 1-5% as detected by the Karl Fischer moisture analyzer, and the pH is 9-12.

Embodiment 3

[0034] The preparation method of polyether type sulfonate anionic surfactant of the present invention:

[0035] Put 1mol naphthol polyether (n=3-24, m=5-15), 0.05mol DBU, 0.05mol catalyst carbon, 1.05mol potassium hydroxide (converted to 100% purity) into a three-necked flask, start stirring, at 40 React at -50°C for 0.5h. Then dropwise add 1mol molten 1,3 propane sultone (melting point 40° C.) into the flask, and after 1 hour, the dropwise addition is completed, and continue to stir at 40-50° C. for 1 hour until the reaction is complete, and a yellow to brownish yellow paste material ( n=10-24), the yield>95%. The active matter content of the product is 75-85% as detected by the two-phase titration method, the water content is 1-5% as detected by the Karl Fischer moisture analyzer, and the pH is 9-12.

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Abstract

The invention discloses a polyether sulfonate anionic surfactant, and a preparation method and an application thereof. The preparation method comprises the following steps: 1, placing dehydrated polyether, a catalyst and alkali metal hydroxide in a reaction kettle, and carrying out a reaction at 30-60 DEG C for 0.2-0.8 h to obtain polyether alkali metal salt; and 2, controlling the temperature in the kettle, continuously adding molten 1,3-propanesultone into the kettle, and carrying out a reaction at 30-60 DEG C for 0.8-1.5 h to obtain the polyether sulfonate anionic surfactant. The preparation method for synthesizing the anionic surfactant through ring opening of 1,3-propanesultone under a solvent-free condition under the catalysis of the catalyst has the advantages of simple process, environmental protection, high conversion rate, and realization of stable performances of the above product.

Description

technical field [0001] The invention relates to the technical field of surfactants, in particular to a polyether-type sulfonate anionic surfactant and its preparation method and application. Background technique [0002] At present, the synthesis principle of sulfonate-type anionic surfactants is to sulfonate nonionic surfactants to obtain anionic surfactants with high salt resistance, high temperature resistance, and acid and alkali resistance. Commonly used sulfonation methods include fuming sulfuric acid sulfonation method, maleic anhydride esterification sulfonation method, sulfamic acid sulfonation method, etc. However, there are the following defects: although the oleum sulfonation method is a mature sulfonation method, it requires high equipment and will produce a large amount of waste acid to pollute the environment, so it is not an ideal sulfonation method; The product obtained by the maleic anhydride esterification sulfonation method contains ester bonds, its chem...

Claims

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Application Information

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IPC IPC(8): C08G65/334C25D3/22B01F17/04C07C303/32C07C309/10C09K23/04
CPCC25D3/22C07C303/32C08G65/3346C08G2650/04C09K23/00
Inventor 付远波任凡潘琦张静付艳梅余洁王亮
Owner WUHAN OXIRAN SPECIALTY CHEM CO
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