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Anhydrous dioctyl sodium sulfosuccinate and preparation method thereof

A technology of diisooctyl sodium sulfosuccinate and isooctyl alcohol, which is applied in the direction of sulfonate preparation, carboxylate preparation, chemical instruments and methods, etc., to achieve the effect of simple operation and concise process thinking

Inactive Publication Date: 2019-11-19
GUANGZHOU FANGZHONG CHEM CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] There are almost no reports about anhydrous diisooctyl sulfosuccinate sodium salt at present, so the development of anhydrous diisooctyl succinate sulfonate sodium salt has very important practical value

Method used

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  • Anhydrous dioctyl sodium sulfosuccinate and preparation method thereof
  • Anhydrous dioctyl sodium sulfosuccinate and preparation method thereof
  • Anhydrous dioctyl sodium sulfosuccinate and preparation method thereof

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Embodiment Construction

[0023] The following examples are used to further illustrate the technical solutions of the present invention, but the present invention is not limited by the following examples.

[0024] The sources of raw materials used in the present invention are as follows:

[0025]

[0026]

[0027] Add isooctyl alcohol, maleic anhydride, and catalyst into the reaction kettle, and then increase the temperature to a certain temperature to react. After a period of reaction, the unreacted isooctyl alcohol is removed under vacuum to obtain DOM (diisooctyl maleate). Add DOM to the reactor, then add sodium bisulfite aqueous solution, and then heat up to a certain temperature for sulfonation reaction. The reaction will rise while water is discharged. After a period of reaction, add dehydrating agent, continue dehydration under vacuum, and filter to obtain anhydrous succinic acid Sodium diisooctyl sulfonate.

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Abstract

The invention discloses anhydrous dioctyl sodium sulfosuccinate. A preparation method for the anhydrous dioctyl sodium sulfosuccinate comprises the following steps: subjecting maleic anhydride and isooctyl alcohol to an esterification reaction at 120 DEG C to 180 DEG C; then adding a sulfonation reagent and performing a sulfonation reaction at 80 DEG C to 130 DEG C; then adding a dehydrating agentfor dehydration; and adding a required anhydrous solvent to further adjust active content so as to prepare the anhydrous dioctyl sodium sulfosuccinate. Compared with water-containing products, a solution product of the anhydrous dioctyl sodium sulfosuccinate is more suitable for application in pesticide preparation missible oil and oil suspension products.

Description

Technical field [0001] The invention relates to the technical field of fine chemicals, in particular to an anhydrous sodium diisooctyl succinate sulfonate and a preparation method thereof. Background technique [0002] In the chemical industry, fast penetrating agent T (Quick T) refers to sodium diisooctyl sulfosuccinate or sodium diisooctyl sulfonate. It is an anionic surfactant with excellent penetrating and wetting properties , Has been widely used in textiles, printing and dyeing, coatings, daily chemicals, papermaking, medicine, pesticides and other fields. The synthetic variability of the molecular structure of such surfactants can change the structure and number of its lipophilic groups, thereby changing its surface activity and other activities. The synthesis is usually divided into two parts, one part is the synthesis of dioctyl succinate, and the other part is the sulfonation of dioctyl succinate. At present, most domestic succinic acid diisooctyl sulfonate sodium sal...

Claims

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Application Information

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IPC IPC(8): C07C303/32C07C303/44C07C309/17
CPCC07C303/32C07C303/44C07C67/08
Inventor 张军贤
Owner GUANGZHOU FANGZHONG CHEM CO LTD
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