Carboxylic acid biquaternary ammonium salt type sodium hydroxypropyl sulfonate asphalt emulsifier and preparation method thereof

A technology of sodium hydroxypropyl sulfonate and asphalt emulsifier is used in the preparation of sulfonate, the preparation of cyanide reaction, chemical instruments and methods, etc. Improve emulsification performance, increase hydrophilicity, and enhance the effect of charge strength

Inactive Publication Date: 2017-07-14
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The general disadvantages of the above cationic asphalt emulsifiers and their preparation methods are: the cost of raw materials for the preparation of emulsifiers is high, the sources are limited, high temperature reactions are required during preparation, and the requirements for production and experimental equipment are relatively high
[0008] In summary, in the process of developing new asphalt emulsifiers, due to the unpredictability of the emulsifying properties of the reaction raw materials and prepared asphalt emulsifiers, this greatly increases the difficulty of developing new asphalt emulsifiers

Method used

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  • Carboxylic acid biquaternary ammonium salt type sodium hydroxypropyl sulfonate asphalt emulsifier and preparation method thereof
  • Carboxylic acid biquaternary ammonium salt type sodium hydroxypropyl sulfonate asphalt emulsifier and preparation method thereof
  • Carboxylic acid biquaternary ammonium salt type sodium hydroxypropyl sulfonate asphalt emulsifier and preparation method thereof

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preparation example Construction

[0050] In one embodiment of the present invention, there is provided a preparation method of the above-mentioned carboxylic acid diquaternary ammonium salt type sodium hydroxypropyl sulfonate asphalt emulsifier, comprising the following steps:

[0051] (1) N-hydrogenated tallow-1,3-propylene diamine was added to the reaction vessel, an alcohol solvent was added, heated and stirred to dissolve, and then acrylic acid was added in batches, and after the addition was completed, the reaction was stirred at 60-80° C. 2-4h, the reaction intermediate I is obtained;

[0052] (2) Add sodium bisulfite into another reaction vessel, add water, heat and stir to dissolve, then add epichlorohydrin in batches, and after the addition is completed, stir and react at 40-85 ° C for 3-6 h to obtain a reaction intermediate II (sodium 3-chloro-2-hydroxypropylsulfonate);

[0053] (3) The reaction intermediate II is added to the reaction intermediate I in batches, and the reaction is carried out at 60...

Embodiment 1

[0062] (1) the preparation of carboxylic acid double quaternary ammonium salt type hydroxypropyl sulfonate asphalt emulsifier:

[0063] 1) 326.0 g of N-hydrogenated tallow-1,3-propylene diamine and 330 g of isopropanol were added to the reactor, and the mixture was heated and stirred to dissolve. Then 219.8 g of acrylic acid was gradually added, and the reaction was stirred at 70° C. for 3 h.

[0064] 2) In another reactor, add 245.2 g of sodium bisulfite and 785.4 g of water, stir to dissolve, and heat to 75°C. Then 197.8 g of epichlorohydrin was added dropwise, and the reaction was stirred at 75° C. for 3.5 h to obtain an aqueous solution of sodium 3-chloro-2-hydroxypropyl sulfonate.

[0065] The above-mentioned intermediate product synthesized was subjected to FTIR detection after separation and purification by recrystallization, and the results were as follows: 3592cm -1 and 3522cm -1 It is the absorption peak of free O-H stretching vibration, 3362cm -1 For the associa...

Embodiment 2

[0077] (1) the preparation of carboxylic acid double quaternary ammonium salt type hydroxypropyl sulfonate asphalt emulsifier:

[0078] 1) Add 326.0 g of N-hydrogenated tallow-1,3-propylene diamine and 330 g of absolute ethanol into the reactor, and heat and stir to dissolve. Then 219.8 g of acrylic acid was gradually added, and the reaction was stirred at 70° C. for 3 h.

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

[0080] 3) The aqueous solution of sodium 3-chloro-2-hydroxypropyl sulfonate prepared in step 2) was added dropwise to the synthesized product in the above step 1), and the reaction was stirred at 75° C. for 3 hours. The carboxylic acid diquaternary ammonium salt type sodium hydroxypropyl sulfonate asphalt emulsifi...

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Abstract

The invention discloses a carboxylic acid biquaternary ammonium salt type sodium hydroxypropyl sulfonate asphalt emulsifier, the molecular structure of which is as shown in the specification. The product is prepared from raw materials including N-hydrogenated tallow-1,3-trimethylenediamine, an alcohols solvent, acrylic acid, chloropropylene oxide and sodium bisulfate at the molar ratio of 1 mol: (5.00-11.00) mol: (3.00-3.10) mol: (2.00-2.30) mol: (2.10-2.50) mol. The asphalt emulsifier of the invention has advantages as follows: production cost is low; the process is simple; and high-temperature reaction is not required.

Description

technical field [0001] The invention relates to a carboxylic acid 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] Emulsified asphalt, especially cationic emulsified asphalt, is widely used in road construction and pavement maintenance due to its energy saving and environmental protection, improving construction conditions, and effectively reducing excessive asphalt aging. [0003] The most critical factor affecting the road performance of emulsified asphalt is asphalt emulsifier. At present, the main varieties of cationic asphalt emulsifiers at home and abroad are organic amines, quaternary ammonium salts, imidazolines, amides, etc. Among them, quaternary ammonium salts are emulsified The emulsifiers include mono-quaternary ammonium salts and di-quaternary ammonium salts, which are currently the most produced and used emulsifier...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C309/14C07C303/32B01F17/06C08J3/03C08L95/00C09K23/06
CPCC07C227/02C07C303/32C07C309/14C08J3/03C08J2395/00C09K23/00
Inventor 施来顺于小梦马存飞
Owner SHANDONG UNIV
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