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Method for preparing asphalt emulsifier by utilizing high boiling point by-product in ethyleneamine production

An asphalt emulsifier, high boiling point technology, applied in the preparation of carboxylic acid amides, chemical instruments and methods, preparation of organic compounds, etc., to achieve the effects of improving service life, saving energy, and improving economic benefits

Active Publication Date: 2015-12-09
XIAN MODERN CHEM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a method for preparing asphalt emulsifier by using high boiling point by-products in the production of ethyleneamines, so as to solve the aftertreatment problem of high boiling point by-products in the production of ethyleneamines. The high-boiling point polyamines and cyclic amine by-products are used as raw materials to prepare asphalt emulsifiers

Method used

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  • Method for preparing asphalt emulsifier by utilizing high boiling point by-product in ethyleneamine production
  • Method for preparing asphalt emulsifier by utilizing high boiling point by-product in ethyleneamine production
  • Method for preparing asphalt emulsifier by utilizing high boiling point by-product in ethyleneamine production

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Add 120g of toluene, 100g of oleic acid and 100g of high-boiling point by-products into a 500mL three-necked flask in sequence, and raise the temperature to reflux under stirring. Finally, 202 g of amidoamine asphalt emulsifier was obtained.

[0019] Weigh 5g of the above-mentioned asphalt emulsifier, add 200g of deionized water, raise the temperature to 70°C, adjust the pH value to 1-2 with hydrochloric acid, and pour it into a colloid mill preheated with hot water. Weigh 200g of 100# ordinary asphalt, raise the temperature to 120°C, start the colloid mill, slowly pour the hot asphalt into the colloid mill to emulsify for 1min, cool down to room temperature, and bottle it for use. According to the requirements of the industry standard JTGF40-2004, the obtained emulsified asphalt was analyzed, and the results are listed in Table-1.

[0020] Table-1 Performance analysis results of emulsified asphalt

[0021]

[0022] From the test results in Table-1, it can be seen ...

Embodiment 2

[0024] Add 200g of xylene, 150g of stearic acid and 100g of high-boiling point by-products into a 1000mL three-necked flask in sequence, and raise the temperature to reflux under stirring. After solvent xylene, 251 g of amidoamine asphalt emulsifier was obtained.

[0025] The emulsified asphalt was prepared according to the method in Example 1, and the obtained emulsified asphalt was analyzed according to the requirements of the industry standard JTGF40-2004, and the results are listed in Table-2.

[0026] Table-2 performance analysis results of emulsified asphalt

[0027]

[0028] From the test results in Table-2, we can see that many properties of the emulsified asphalt meet the industry standards.

Embodiment 3

[0030] Add 188g of xylene, 150g of stearic acid and 100g of high-boiling point by-products recovered in Example 2 into a 1000mL three-necked flask in sequence, and raise the temperature to reflux under stirring. After continuing the reaction for 3 hours, it was changed to a vacuum distillation device, and after recovering 176g of solvent xylene at 95-102°C, 246g of imidazoline asphalt emulsifier was obtained.

[0031] The emulsified asphalt was prepared according to the method in Example 1, and the obtained emulsified asphalt was analyzed according to the requirements of the industry standard JTGF40-2004, and the results are listed in Table-3.

[0032] Table-3 performance analysis results of emulsified asphalt

[0033]

[0034] From the test results in Table-3, it can be seen that many properties of the emulsified asphalt meet the industry standards.

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Abstract

The invention discloses a method using high boiling point by-products in ethylenediamine production for preparation of an asphalt emulsifier, and the method uses the high boiling point polyamine and cyclamine by-products produced by the ethylenediamine production as raw materials for preparation of the asphalt emulsifier. Emulsified asphalt prepared by the asphalt emulsifier as a raw material has performances according with requirements in industry standard 'technical specification for construction of highway asphalt pavement' (JTG F40-2004). According to the method, the high boiling point by-products produced by the ethylenediamine production are transferred into the widely used asphalt emulsifier for export sales, the economic benefits of the ethylenediamine production are improved, and the secondary pollution to the environment is reduced.

Description

technical field [0001] The invention relates to a post-treatment method for by-products in the production process of chemical products, in particular to a method for preparing asphalt emulsifiers from high-boiling-point by-products in the production of ethyleneamine. Background technique [0002] The aliphatic amines formed by the primary, secondary and tertiary amine groups on both sides of the ethylene group are called ethyleneamines, including straight-chain amines, such as ethylenediamine (EDA), diethylenetriamine (DETA), triethylenetetramine (TETA), tetraethylenepentamine (TEPA), etc., and cyclic amines, such as piperazine (PIP), triethylenediamine (TEDA), aminoethylpiperazine (AEP), hydroxyethylpiperazine (HEP )Wait. Because ethyleneamine has special physical and chemical properties in fatty amines, such as its reactivity, cationicity, chelation, physiological activity, etc., it can be used as an important fine organic chemical intermediate in organic synthesis, medic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08J3/03C07C233/38C07C233/36C07C231/02C07D233/26
Inventor 梅苏宁吕剑杨建明赵锋伟余秦伟李亚妮王为强张前
Owner XIAN MODERN CHEM RES INST