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A kind of secondary amide diquaternary ammonium salt type sodium hydroxypropyl sulfonate asphalt emulsifier and its preparation method

A technology of sodium hydroxypropyl sulfonate and asphalt emulsifier, which is applied in the direction of sulfonate preparation, carboxylic acid amide preparation, chemical instruments and methods, etc., can solve the problems of large irritation, source limitation, high temperature reaction, etc., and achieve improvement Stability, enhancement of charge intensity, and system stabilization effects

Inactive Publication Date: 2019-05-24
SHANDONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it has been found through research that the performance of the dianionic and dianionic asphalt emulsifier needs to be further improved; in addition, acrylic acid is used as a raw material, which is more irritating, which is not conducive to the health of production workers.
[0007] The general disadvantages of the above-mentioned amphoteric asphalt emulsifiers and their preparation methods are: the cost of raw materials for the preparation of emulsifiers is high, the source is limited, high temperature reactions are required during preparation, and the requirements for production and experimental equipment are relatively high

Method used

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  • A kind of secondary amide diquaternary ammonium salt type sodium hydroxypropyl sulfonate asphalt emulsifier and its preparation method
  • A kind of secondary amide diquaternary ammonium salt type sodium hydroxypropyl sulfonate asphalt emulsifier and its preparation method
  • A kind of secondary amide diquaternary ammonium salt type sodium hydroxypropyl sulfonate asphalt emulsifier and its preparation method

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preparation example Construction

[0036] For above asphalt emulsifier, the present invention also provides its preparation method, comprises the following steps:

[0037](1) N-hydrogenated tallow-1,3-propylenediamine, alcohol solvent and N-methylolacrylamide are mixed and reacted to obtain reaction intermediate I, and intermediate I is

[0038]

[0039] (2) Add 3-chloro-2-hydroxypropyl sodium sulfonate into the reaction intermediate I and react to obtain secondary amide bisquaternary ammonium salt type sodium hydroxypropyl sulfonate asphalt emulsifier.

[0040] In the preferred technical scheme of the present invention, the preparation method of described 3-chloro-2-hydroxypropyl sodium sulfonate comprises the following steps:

[0041] Dissolve sodium bisulfite in water, heat to a certain temperature, then gradually add epichlorohydrin, mix and react to obtain reaction intermediate II, intermediate II is 3-chloro-2-hydroxypropyl sodium sulfonate

[0042]

[0043] Preferably, the reaction temperature is ...

Embodiment 1

[0061] (1) Preparation of secondary amide diquaternary ammonium salt type sodium hydroxypropyl sulfonate asphalt emulsifier:

[0062] 1) Add 326.0g of N-hydrogenated tallow-1,3-propylenediamine and 330g of isopropanol into the reactor, heat and stir to dissolve. Then, 321.2 g of N-methylolacrylamide (96% content) was added gradually, and the reaction was stirred at 70° C. for 3 h.

[0063] The above synthetic intermediate product was separated and purified by recrystallization and then detected by FTIR. The results are as follows: 3315cm -1 It is the stretching vibration absorption peak of O-H, 3070cm -1 It is the stretching vibration absorption peak of N-H, 2922cm -1 It is the asymmetric stretching vibration absorption peak of methylene, 2850cm -1 Closed peak for the symmetrical stretching vibration of methylene, 1664cm -1 It is the C=O stretching vibration absorption peak in the amide group, 1546cm -1 and 1471cm -1 is the asymmetric bending vibration of methylene, 1379...

Embodiment 2

[0077] (1) Preparation of secondary amide diquaternary ammonium salt type sodium hydroxypropyl sulfonate asphalt emulsifier:

[0078] 1) Add 326.0g of N-hydrogenated tallow-1,3-propylenediamine and 330g of absolute ethanol into the reactor, heat and stir to dissolve. Then, 321.2 g of N-methylolacrylamide (96% content) was added gradually, and the reaction was stirred at 70° C. for 3 h.

[0079] 2) Add 245.2g of sodium bisulfite and 785.4g of water into another reactor, stir to dissolve, and heat to 75°C. Then 197.8 g of epichlorohydrin was added dropwise, and stirred at 75° C. for 3.5 h to obtain an aqueous solution of 3-chloro-2-hydroxypropyl sulfonate sodium.

[0080] 3) The aqueous solution of sodium 3-chloro-2-hydroxypropyl sulfonate prepared in step 2) was added dropwise to the synthesis product in the above step 1), and stirred at 75° C. for 3 h. The secondary amide diquaternary ammonium salt type sodium hydroxypropyl sulfonate asphalt emulsifier was obtained, which wa...

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Abstract

The invention discloses a secondary amide di-quaternary ammonium salt type hydroxypropyl sodium sulfonate asphalt emulsifier and a preparation method thereof, wherein the secondary amide di-quaternary ammonium salt type hydroxypropyl sodium sulfonate asphalt emulsifier is prepared from the following raw materials N-hydrogenated tallow-1,3-propylene diamine, an alcohol solvent, N-hydroxymethyl acrylamide, epichlorohydrin and sodium bisulfite according to a molar ratio of 1:(5.00-11.00):(3.00-3.10):(2.00-2.30):(2.10-2.50), and the alcohol solvent is ethanol, methanol or isopropanol. According to the present invention, the preparation method has advantages of easily available raw material, low production cost, simple process and no requirement of high temperature reaction; and the obtained secondary amide di-quaternary ammonium salt type hydroxypropyl sodium sulfonate asphalt emulsifier can emulsify a variety of different types of asphalts, and can be used for preparing cationic emulsified asphalts, and the emulsified asphalt prepared from the secondary amide di-quaternary ammonium salt type hydroxypropyl sodium sulfonate asphalt emulsifier has advantages of fine and uniform property and good storage stability.

Description

technical field [0001] The invention relates to a secondary amide diquaternary ammonium salt type sodium hydroxypropyl sulfonate asphalt emulsifier and a preparation method thereof, belonging to the technical field of fine chemicals. Background technique [0002] An emulsifier is an amphiphilic molecule composed of a non-polar hydrophobic group and a polar hydrophilic group. This structure makes the emulsifier form a directional and dense arrangement on the surface (interface) of the solution, changing the surface (interface) of the system. Surface chemistry. When the concentration of the emulsifier exceeds its critical micelle concentration CMC, the surface (interface) surface tension is reduced to the minimum, so that it has the functions of emulsification, defoaming, and dispersion. application. [0003] According to the different properties of the hydrophilic group of the emulsifier, the emulsifier is divided into anionic type, cationic type, zwitterionic type, nonioni...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J3/03C08L95/00C07C309/14C07C303/32
CPCC07C231/12C07C303/32C07C309/14C08J3/03C08J2395/00C08L95/00C08L2201/54C07C237/08C07C309/08
Inventor 施来顺顾晨阳马存飞于小梦王天曜
Owner SHANDONG UNIV
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