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Sodium lauryl polyoxyethylene (7) octyl sulfosuccinate and its preparing process

A technology of lauryl alcohol polyoxyethylene ether and octyl sulfosuccinic acid, which is applied in the directions of chemical instruments and methods, dissolution, chemical/physical processes, etc., can solve the problems of complex procedures and unsatisfactory product performance, and achieves compact process. , The effect of reducing equipment requirements and raw material consumption

Inactive Publication Date: 2009-03-25
NANTONG UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The process is complicated and the product performance is not very ideal

Method used

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  • Sodium lauryl polyoxyethylene (7) octyl sulfosuccinate and its preparing process
  • Sodium lauryl polyoxyethylene (7) octyl sulfosuccinate and its preparing process
  • Sodium lauryl polyoxyethylene (7) octyl sulfosuccinate and its preparing process

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Experimental program
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Embodiment Construction

[0017] In a four-necked flask equipped with a stirrer, a thermometer and a reflux condenser, the water-treated polyoxyethylene laureth (7) and maleic anhydride were sequentially added at a mass ratio (molar ratio) of 1.00:1.10, and added The alkane sulfonic acid catalyst with 1% of maleic anhydride mass is introduced into nitrogen, and the temperature is raised to 140℃ with stirring within 10-30 minutes (examples 10, 20, 30 minutes); keep this temperature and keep time for 150 minutes in the same reaction Connect a water separator to the device, and add octanol according to the mass ratio (molar ratio) of octanol:maleic anhydride=4.0:1.0 to carry out the double-esterification reaction, and heat it to 200°C according to the above-mentioned single-esterification reaction method Time the temperature, keep the temperature for dehydration, keep the temperature for 300min, cool, neutralize, cool to a temperature of 20~60℃ (for example, 20℃, 40℃, 60℃), and neutralize to a pH of 7±0.5; ne...

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Abstract

The invention discloses a lauryl alcohol polyvinyl ether (7) octyl sulfo succinic mixed diester sodium and relative preparation, comprising that processing monoester reaction between maleic anhydride and lauryl alcohol polyvinyl ether (7), and processing diester reaction between the reaction product of monoester reaction and octanol, and processing conjugate addition reaction between the reaction product of diester reaction and sodium bisulfite to obtain final product. The invention has high-quality property and simple process.

Description

Technical field: [0001] The present invention relates to a surfactant. Background technique: [0002] Existing succinic acid diester sulfonate series surfactants generally use excess alcohol for esterification, and then neutralize and wash the esterified product, and then add a sulfonated phase transfer catalyst after dehydration and deacidification. Closed system. The process is complicated and the product performance is not very satisfactory. Summary of the invention: [0003] The purpose of the present invention is to provide a sodium laureth polyoxyethylene ether (7) octyl sulfosuccinic acid mixed diester with good performance and simple synthesis method and a preparation method. [0004] The technical solution of the present invention is: [0005] A kind of polyoxyethylene laureth (7) octyl sulfosuccinic acid mixed diester sodium, which is characterized in that the structural formula is: [0006] [0007] A preparation method of polyoxyethylene laureth (7) octyl sulfosucc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01F17/00C09K23/00
Inventor 华平戴宝江李建华吴东辉鞠剑峰丁欣宇张跃军景晓辉
Owner NANTONG UNIVERSITY
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