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Synthesis method of novel fluorine-containing sulfonate type surfactant

A technology containing fluorine sulfonate and surfactant, applied in the preparation of sulfonic acid, chemical instruments and methods, preparation of carboxylate, etc., can solve problems such as environmental pollution, achieve environmental pollution, easy to degrade, and high use value Effect

Pending Publication Date: 2021-05-07
广东方中高新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Starting from the by-products of tetrafluoropropanol, through esterification and sulfonation reactions, a fluorine-containing sulfonate surfactant was synthesized, which not only solved the problem of utilization of tetrafluoropropanol by-products, environmental pollution problems, but also obtained relatively Inexpensive high performance fluorocarbon surfactant

Method used

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  • Synthesis method of novel fluorine-containing sulfonate type surfactant
  • Synthesis method of novel fluorine-containing sulfonate type surfactant
  • Synthesis method of novel fluorine-containing sulfonate type surfactant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0030] Add 2.2 mol of octafluoropentanol into a four-necked flask, and add powdered 1 mol of maleic anhydride under the protection of continuous N2 flow. After adding anhydride, add 0.3% p-toluenesulfonic acid, heat up the vacuum reaction to 60-110°C, and react for 3-8 hours to obtain maleic acid monoester. The esterification product is directly subjected to sulfonation reaction. Dissolve 24.6g (0.236mol) of sodium sulfite in advance and 41g of water into the esterification flask, stir evenly to prevent the system from agglomerating, the reaction temperature is 70-120°C, and the reaction time is 1-2 hours. The product shown in the figure is obtained.

[0031]

Embodiment approach 2

[0033] Add 2.2 mol of dodecafluoroheptanol into a four-neck flask, and add powdered 1 mol of maleic anhydride under the protection of continuous N2 flow. After adding anhydride, add 0.3% p-toluenesulfonic acid, heat up the vacuum reaction to 60-110°C, and react for 3-8 hours to obtain maleic acid monoester. The esterification product is directly subjected to sulfonation reaction. Dissolve 24.6g (0.236mol) of sodium sulfite and 41g of water prepared in advance into the esterification flask, stir evenly to prevent the system from agglomerating, the reaction temperature is 70-120°C, the reaction time is 1-2h, and the product 2 is obtained as shown in the figure.

[0034]

Embodiment approach 3

[0036] Add 2.2 mol of hexadecafluorononanol into the four-necked flask, and add powdered 1 mol of maleic anhydride under the protection of continuous N2 flow. After adding anhydride, add 0.3% p-toluenesulfonic acid, heat up the vacuum reaction to 60-110°C, and react for 3-8 hours to obtain maleic acid monoester. The esterification product is directly subjected to sulfonation reaction. Dissolve 24.6g (0.236mol) of sodium sulfite and 41g of water in advance into the esterification flask, stir evenly to prevent the system from agglomerating, the reaction temperature is 70-120°C, the reaction time is 1-2h, and the product is obtained as shown in the figure

[0037]

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Abstract

The invention provides a synthesis method of a novel fluorine-containing sulfonate type surfactant, wherein the synthesis method is characterized by comprising the steps: carrying out esterification reaction on fluorocarbon alcohol, maleic anhydride and a catalyst, and then carrying out sulfonation reaction with a sodium sulfite aqueous solution to obtain the fluorine-containing sulfonate type surfactant. The fluorine-containing sulfonate surfactant is synthesized by starting from a by-product of tetrafluoropropanol through esterification and sulfonation reactions, so that the problems of utilization of the by-product of tetrafluoropropanol and environmental pollution are solved, and the low-cost high-performance fluorocarbon surfactant can be obtained.

Description

technical field [0001] The invention relates to a novel method for synthesizing a fluorine-containing sulfonate surfactant. The surfactant can be used as a general fluorine-containing sulfonic acid surfactant, for example, as a chromium mist inhibitor, an emulsifier, or for synthesizing other types of fluorine-containing surfactants. [0002] technical background [0003] Ordinary hydrocarbon surfactants have unsatisfactory temperature resistance due to their high surface tension, and they are used in large amounts. Fluorine-containing surfactants have the advantages of low surface tension, excellent high temperature resistance and low temperature resistance, and less dosage. They are more and more widely used in coatings, inks, adhesives and other fields as defoamers, dispersants and emulsifiers. . Fluorine-containing surfactants are a type of surfactants in which the hydrogen atoms in the hydrocarbon chain are partially or completely replaced by fluorine atoms to form a h...

Claims

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Application Information

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IPC IPC(8): C07C303/20C07C309/17C07C67/08C07C69/60B01F17/10C09K23/10
CPCC07C303/20C07C67/08C09K23/00C07C309/17C07C69/60
Inventor 易先聪周国伟
Owner 广东方中高新材料有限公司