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
CN106519212AActive Publication Date: 2017-03-22WUHAN OXIRAN SPECIALTY CHEM CO
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
WUHAN OXIRAN SPECIALTY CHEM CO
Publication Date
2017-03-22

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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.
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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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