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Gemini imidazoline-ammonium-salt and preparation method and application thereof

A technology of gemini imidazoline and quaternary ammonium salt is applied in the field of asphalt emulsifier for rapid opening traffic type slurry seal and its preparation, which can solve the problems of poor slow cracking and fast setting effect, high cost, unstable raw material source and the like , to achieve the effect of improving water solubility and emulsifying properties, low production cost and good emulsifying ability

Inactive Publication Date: 2016-05-04
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, asphalt emulsifiers for slurry seals have disadvantages such as high cost, unstable source of raw materials, slow cracking and fast setting, etc.

Method used

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  • Gemini imidazoline-ammonium-salt and preparation method and application thereof
  • Gemini imidazoline-ammonium-salt and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] First, using capric acid and ethylenediamine with a molar ratio of 1:1 as raw materials, add toluene accounting for 20% of the total weight of the reaction materials, stir and heat up to 140°C, and react at a constant temperature for 4h; raise the temperature to 220°C under vacuum. ℃ as the raw material, continue the reaction for 2h to remove the solvent and water, and obtain the imidazoline matrix. Then, take dimethylamine and epichlorohydrin as raw materials with a molar ratio of 1: 2.0, add ethanol accounting for 30% of the total weight of the reaction mass, add dropwise hydrochloric acid in the same molar amount as epichlorohydrin in the reaction system, and stir Raise the temperature to 20°C, react at a constant temperature for 12h, remove the solvent and unreacted materials, and obtain N-butyl-N,N-di(3-chloro-2-hydroxypropyl)butane-1-ammonium salt (intermediate ). Finally, using the imidazoline matrix and intermediates with a molar ratio of 2:1 as raw materials, ...

Embodiment 2

[0031] First, using lauric acid and hydroxyethylethylenediamine with a molar ratio of 1:2 as raw materials, add m-xylene accounting for 50% of the total weight of the reaction material, stir and heat up to 180 ° C, and react at a constant temperature for 2 hours; Raise the temperature to 260°C as the raw material, continue the reaction for 6h to remove the solvent and water, and obtain the imidazoline matrix. Then, be 1: 3.0 diethylamine and epichlorohydrin as raw material with molar ratio, add the propanol that accounts for 50% of reaction mass gross weight, drip the hydrochloric acid of the same molar quantity as epichlorohydrin in reaction system, Stir and heat up to 60°C, react at a constant temperature for 8 hours, remove the solvent and unreacted materials, and obtain N-butyl-N,N-bis(3-chloro-2-hydroxypropyl)butane-1-ammonium salt (intermediate body). Finally, using the imidazoline matrix and intermediates with a molar ratio of 3:1 as raw materials, add butanol accounti...

Embodiment 3

[0037] First, using tetradecanoic acid and diethylenetriamine with a molar ratio of 1:1.5 as raw materials, add o-xylene accounting for 30% of the total weight of the reaction materials, stir and heat up to 150 ° C, and react at a constant temperature for 3 hours; High temperature to 230°C is used as raw material, and the reaction is continued for 3 hours to remove solvent and water to obtain imidazoline matrix. Then, take dipropylamine and epichlorohydrin as raw materials with a molar ratio of 1: 2.5, add butanol accounting for 40% of the total weight of the reaction mass, add dropwise hydrochloric acid in the same molar amount as epichlorohydrin in the reaction system, and stir Raise the temperature to 30°C, react at a constant temperature for 9h, remove the solvent and unreacted materials, and obtain N-butyl-N,N-di(3-chloro-2-hydroxypropyl)butane-1-ammonium salt (intermediate ). Finally, using the imidazoline matrix and intermediates with a molar ratio of 2.5:1 as raw mate...

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Abstract

The invention relates to gemini imidazoline-ammonium-salt. A preparation method comprises the following steps: amidating and cyclizing long-chain organic acid and organic polyamine to obtain an imidazoline matrix; then reacting epichlorohydrin and dialkyl amine to obtain an intermediate; finally reacting the imidazoline matrix and the intermediate to obtain the gemini imidazoline-ammonium-salt. The gemini imidazoline-ammonium-salt provided by the invention has the following advantages: (1) raw materials for an asphalt emulsifier are low in cost, the preparation technology is simple, no catalyst is used, and the production cost is low; (2) on the aspect of the design of a molecular structure, a biquaternary ammonium salt structure is introduced into molecules of the emulsifier to improve the water solubility and the emulsion performance of the emulsifier, at the same time, the quantity of cations is increased and the emulsion breaking speed of emulsified asphalt is obviously reduced; (3) the asphalt emulsifier is high in emulsifying capacity for different asphalts, and the prepared emulsified asphalt is even and fine and high in storage stability, can be both used for emulsifying asphalt in a slurry seal and used for emulsifying the asphalt on the micro surface.

Description

technical field [0001] The invention relates to an asphalt emulsifier for rapid open traffic type slurry seal and a preparation method thereof, more specifically a gemini imidazoline quaternary ammonium salt, a preparation method and application thereof. Background technique [0002] With the improvement of the national highway network structure, the dominant position of maintenance management in the entire highway system will gradually be established, and my country's highways will gradually enter the maintenance period from the period of large-scale comprehensive construction. Based on the advantages of saving energy, saving resources, prolonging the construction season and reducing environmental pollution, emulsified asphalt is considered to be one of the most effective and economical means to repair road ruts, cracks and other road surface diseases. [0003] Slurry seal technology is to use mechanical equipment to mix appropriately graded emulsified asphalt, coarse and f...

Claims

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Application Information

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IPC IPC(8): C07D233/16C08J3/03C08L95/00
CPCC07D233/16C08J3/03C08J2395/00C08L95/00C08L2201/54
Inventor 范维玉姚艳翟哲孔祥军梁明罗辉南国枝刘树俊
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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