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Gemini alkylamine ether succinate sulfonate surfactant and preparation method thereof

A succinic sulfonate and surfactant technology, applied in the chemical field, can solve the problems of poor compatibility of anionic surfactants, and achieve the effects of curbing the product from yellowing, good environmental protection, and curbing hydrolysis

Active Publication Date: 2018-10-09
山东转化科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Succinate sulfonate surfactants have been greatly developed since the mid-1980s. They have excellent emulsification, wettability, permeability and hard water resistance, good low irritation, low toxicity, etc., and their The preparation process is simple, no three wastes, and good biodegradability, thus becoming an important part of anionic surfactants; amine ether surfactants also have excellent emulsification, dispersion, solubilization, antistatic, lubrication, corrosion inhibition, and sterilization and other characteristics, but its compatibility with anionic surfactants is not good

Method used

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  • Gemini alkylamine ether succinate sulfonate surfactant and preparation method thereof
  • Gemini alkylamine ether succinate sulfonate surfactant and preparation method thereof
  • Gemini alkylamine ether succinate sulfonate surfactant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Preparation of didodecanyl secondary amine ether (5EO) diester sodium succinate sulfonate shown in formula VII

[0029]

[0030] First put 2.1mol didodecanyl secondary amine ether (5EO) and 1mol maleic anhydride into the experimental device equipped with stirrer, thermometer, water separator and condenser tube, the whole experimental device is inerted 3 times, and finally pass Enter the nitrogen protection, open the condenser, add the catalyst, and then carry out the double esterification reaction at a reaction temperature of 100-240°C. During the reaction, a water separator is used to separate the water. The reaction time is 3-20h, and the acid value is less than 15. Then it is considered that the diesterification reaction is over; cool the product to 50±30°C, use 32% NaOH solution to neutralize to pH=7±0.5, and enter the next step; in the experimental device equipped with a condenser and a thermometer, add cooling And the 50% solution of the neutralized diester and...

Embodiment 2

[0032] Preparation of dioctadecyl secondary amine ether (7EO) monoester sodium succinate sulfonate shown in formula VIII

[0033]

[0034] First put 1.1 mol of dioctadecyl secondary amine ether (7EO) and 1 mol of maleic anhydride into an experimental device equipped with a stirrer, thermometer, water separator and condenser tube. Enter the nitrogen protection, open the condenser, add the catalyst, and then carry out the monoesterification reaction at a reaction temperature of 80-120°C, the reaction time is 3-20h, and the acid value is less than 120, it is considered that the monoesterification reaction is over; the product Cool to 50±30°C, use 32% NaOH solution to neutralize to pH=7±0.5, and enter the next step; in the experimental device equipped with a condenser and a thermometer, add the cooled and neutralized monoester and 0.52mol A 50% solution of sodium pyrosulfite is fed with nitrogen gas, and the reaction temperature is 85-155°C and vigorously stirred for sulfonatio...

Embodiment 3

[0036] The preparation of dodecyl primary amine ether (3EO) diester sodium succinate sulfonate shown in formula IX

[0037]

[0038]First put 1.2 mol of dodecyl primary amine ether (3EO) and 1 mol of maleic anhydride into the experimental device equipped with a stirrer, thermometer, water separator and condenser tube. The whole experimental device is inerted 3 times, and finally the Nitrogen protection, open the condenser, add catalyst, and then carry out diesterification reaction at a reaction temperature of 100-240°C. During the reaction, use a water separator to separate water. The reaction time is 3-20h, and the acid value is less than 15. The diesterification reaction is completed; cool the product to 50±30°C, use 32% NaOH solution to neutralize to pH=7±0.5, and enter the next step; in the experimental device equipped with a condenser and a thermometer, add cooling and neutralizing The mixed diester and 50% solution of 0.53mol sodium metabisulfite are fed with nitrogen...

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Abstract

The present invention relates to gemini alkylamine ether succinate sulfonate surfactants as shown in chemical structural formulas I, II, III and IV, wherein R1 and R2 are respectively selected from linear or branched saturated or non-linear C4-C22. Saturated hydrocarbon group, wherein R1, R2 are the same or different; a=1~100, b=1~100, n=1~10, all are integers; M is one or more selected from Li+, Na+, K+, NH4+ kind. Its preparation method is to carry out monoester or diesterization of secondary amine ether, primary amine ether, polyamine ether and maleic anhydride, and then carry out sulfonation to obtain disubalkyl amine ether succinate. According to amine ether alkyl, The addition number of EO and PO and the number of amine ether functional groups are different, which can adjust the performance of the final gemini surfactant from the molecular structure. The preparation method of the invention is simple, easy to operate, and less harmful to the environment.

Description

technical field [0001] The invention belongs to the field of chemistry, and relates to a Gemini surfactant and a preparation method thereof, in particular to a gemini succinylamide sulfonate and a preparation method thereof. Background technique [0002] Gemini surfactant molecules contain two or more hydrophilic groups and hydrophobic groups, which are chemically bonded by an intermediate linking group (Spacer) to form a surfactant. Compared with traditional surfactants, Gemini surfactants usually have the following characteristics: [0003] Gemini surfactants are more likely to aggregate into micelles, that is, have a rather low CMC value, and are more suitable for use as emulsifiers and dispersants. This is mainly due to the fact that the two ionic head groups connected by chemical bonds in the molecule are tightly connected, which makes the hydrophobic groups have a strong interaction and inhibits the separation caused by the electrostatic repulsion between the hydrophi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01F17/10B01F17/42C07C309/22C07C303/32C09K23/10C09K23/42
CPCC07C303/32C09K23/00
Inventor 王杨张楠张城
Owner 山东转化科技有限公司
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