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A kind of tertiary 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 preparation of sulfonate, the preparation of cyanide reaction, chemical instruments and methods, etc. Stability, enhanced charge strength, the effect of system stability

Inactive Publication Date: 2019-03-05
SHANDONG UNIV
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  • Summary
  • 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 tertiary amide diquaternary ammonium salt type sodium hydroxypropyl sulfonate asphalt emulsifier and its preparation method
  • A kind of tertiary amide diquaternary ammonium salt type sodium hydroxypropyl sulfonate asphalt emulsifier and its preparation method
  • A kind of tertiary amide diquaternary ammonium salt type sodium hydroxypropyl sulfonate asphalt emulsifier and its preparation method

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preparation example Construction

[0041] For above asphalt emulsifier, the present invention also provides its preparation method, comprises the following steps:

[0042] (1) Mix and react N-hydrogenated tallow-1,3-propylenediamine, alcohol solvent and N,N-dimethylacrylamide to obtain reaction intermediate I, which is

[0043]

[0044] (2) Add 3-chloro-2-hydroxypropyl sodium sulfonate into the reaction intermediate I and react to obtain the tertiary amide bisquaternary ammonium salt type sodium hydroxypropyl sulfonate asphalt emulsifier.

[0045] In the preferred technical scheme of the present invention, the preparation method of described 3-chloro-2-hydroxypropyl sodium sulfonate comprises the following steps:

[0046] 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

[0047]

[0048] Preferably, the reaction temperature is 40-85°C, more p...

Embodiment 1

[0066] (1) Preparation of tertiary amide diquaternary ammonium salt type sodium hydroxypropyl sulfonate asphalt emulsifier:

[0067] 1) Add 326.0g of N-hydrogenated tallow-1,3-propylenediamine and 330g of isopropanol into the reactor, heat and stir to dissolve. Then gradually add 302.4g of N,N-dimethylacrylamide, and stir at 70°C for 3h.

[0068] The above synthetic intermediate product was separated and purified by recrystallization and then detected by FTIR. The results are as follows: 2927cm -1 It is the asymmetric stretching vibration absorption peak of methylene, 2846cm -1 Closed peak for the symmetrical stretching vibration of methylene, 1652cm -1 It is the C=O stretching vibration absorption peak in the amide group, 1500cm -1 and 1471cm -1 is the asymmetric bending vibration of methylene, 1404cm -1 is the asymmetric bending vibration of the methyl group, 1271cm -1 and 1139cm -1 C-N stretching vibration absorption peak, 1053cm -1 It is the C-H in-plane bending vi...

Embodiment 2

[0082] (1) Preparation of tertiary amide diquaternary ammonium salt type sodium hydroxypropyl sulfonate asphalt emulsifier:

[0083] 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 gradually add 302.4g of N,N-dimethylacrylamide, and stir at 70°C for 3h.

[0084] 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.

[0085] 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 tertiary amide diquaternary ammonium salt type sodium hydroxypropyl sulfonate asphalt emulsifier was obtained, which was reserved for the emulsified asphalt test. ...

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Abstract

The invention discloses a tert-amide bis-quaternary phosphonium type sodium hydroxypropyl sulfonate asphalt emulsifier and a preparation method thereof. The asphalt emulsifier is prepared from, by mole, 1 part of N-hydrogenated tallow-1,3-diaminopropane, 5.00-11.00 parts of an alcohol solvent, 3.00-3.10 parts of N,N-dimethylacrylamide, 2.00-2.30 parts of epoxy chloropropane and 2.10-2.50 parts of sodium hydrogen sulfite, wherein the alcohol solvent is ethanol or methanol or isopropanol. The asphalt emulsifier has the advantages that the synthesis raw materials are easy to obtain, the production cost is low, the process is simple, a high-temperature reaction is not needed and can emulsify multiple different types of asphalt, the prepared emulsified asphalt is fine, uniform and good in storage stability, and cationic emulsified asphalt can be prepared.

Description

technical field [0001] The invention relates to a tertiary 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, nonionic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J3/03C08L95/00C07C303/32C07C309/14
CPCC07C227/06C07C303/32C08J3/03C08J2395/00C08L95/00C08L2201/54C07C309/14C07C309/08C07C229/16
Inventor 施来顺马存飞于小梦
Owner SHANDONG UNIV
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