Preparation method of high-grade road emulsified asphalt

A kind of emulsified asphalt, high-grade technology, applied in the field of preparation of grade road emulsified asphalt, can solve the problems of high price, poor performance of modified emulsified asphalt, unstable quality, etc., achieve good frost resistance, less residue on the sieve, Good long-term storage effect

Inactive Publication Date: 2014-05-28
KENLI SANHE NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The performance of modified emulsified asphalt currently manufactured in China is poor, the quality is unstable, and there is a big gap compared with similar foreign products, and the price is high. There is an urgent need for a high-performance, low-cost high-grade road emulsified asphalt preparation process. , to produce this product to meet the market demand

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Example 1: Using catalytic cracking heavy residue as raw material, heat catalytic cracking heavy residue in a heating furnace to 120-160°C and put it into a stirred tank, control the temperature of the kettle at 90-120°C, and press 2.5:100 Proportionally add diluent acetone solution, stir for 2.5-3 hours, dilute the heavy residual oil to reduce the reaction viscosity, and then mix emulsifier, stabilizer, antifreeze, surfactant, low viscosity residual oil and water at 2.5:1.5: 2:3.0:100:60 into the colloid mill, keep the temperature of the colloid mill between 75-90°C, and make high-grade road emulsified asphalt through the colloid mill for 3.5-6 hours;

[0016] The above-mentioned emulsifier adopts trimethyl phosphate, and the above-mentioned stabilizer adopts: a mixture of 10% polyphosphoric acid, 30% triethylene glycol diisocaprylate and 60% dicyclohexyl tetrathiodiazine, and the antifreeze is a color A mixture of 10% amine hydrochloride, 10% acrylamide, and 70% suc...

Embodiment 2

[0017] Example 2: Using catalytic cracking heavy residue as raw material, heat catalytic cracking heavy residue in a heating furnace to 120-160°C and pour it into a stirred tank. Proportionally add diluent tetrahydrofuran solution, stir for 2.5-3 hours, dilute the heavy residual oil to reduce the reaction viscosity, and then mix emulsifier, stabilizer, antifreeze, surfactant with low viscosity residual oil and water at a ratio of 3:2: 2.5:4.5:100:70 ratio into the colloid mill, keep the temperature of the colloid mill between 75-90 ℃, and make high-grade road emulsified asphalt through the colloid mill for 3.5-6 hours;

[0018] The above-mentioned emulsifier adopts dibutyl phthalate, and the above-mentioned stabilizer adopts: a mixture of 10% polyphosphoric acid, 30% triethylene glycol diisocaprylate and 60% dicyclohexyl tetrathiodiazine, antifreeze The agent is a mixture of 10% tryptamine hydrochloride, 10% acrylamide and 70% succinimide, and the surfactant is 2,3-dimethyl-1-...

Embodiment 3

[0019] Example 3: Using catalytic cracking heavy residue as raw material, heat catalytic cracking heavy residue in a heating furnace to 120-160°C and pour it into a stirred tank, control the temperature of the kettle at 90-120°C, and press 2.8:100 Proportionally add diluent tetrahydrofuran solution, stir for 2.5-3 hours, dilute the heavy residual oil to reduce the reaction viscosity, and then mix emulsifier, stabilizer, antifreeze, surfactant, low viscosity residual oil and water at 2.8:1.8: 2. The ratio of 4:4:100:65 is injected into the colloid mill, and the temperature of the colloid mill is kept between 75-90°C, and the high-grade road emulsified asphalt is obtained through the colloid mill for 3.5-6 hours;

[0020] The above-mentioned emulsifier adopts trimethyl phosphate, and the above-mentioned stabilizer adopts: a mixture of 10% polyphosphoric acid, 30% triethylene glycol diisocaprylate and 60% dicyclohexyl tetrathiodiazine, and the antifreeze is a color A mixture of 1...

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PUM

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Abstract

The invention relates to a preparation method of high-grade road emulsified asphalt. The method adopts the technical scheme that the method comprises the steps: catalytic cracking heavy residual oil is heated to be 120-160 DEG C in a heating furnace and then fed into a stirring kettle; a diluent, namely acetone or tetrahydrofuran is added according to the fact that the ratio of the catalytic cracking heavy residual oil to the diluent is (2.5-3):100; the catalytic cracking heavy residual oil is diluted to be low-viscosity residual oil; the reaction viscosity is reduced; an emulsifier, a stabilizer, an antifreezing agent, a surfactant, the low-viscosity residual oil and water are fed into a colloid mill at a ratio; the temperature of the colloid mill is kept to be 75-90 DEG C; the high-grade road emulsified asphalt is prepared via the colloid mill. The method has the benefits that the diluent dilutes the heavy residual oil, so that the viscosity of the residual oil is reduced, the shear resistance in an emulsion process is reduced, and the reaction efficiency is improved; by virtue of the antifreezing agent, the freezing resistance is good, the long-term storage property is good, the oversize residual amount of the asphalt is less, and a pungent smell generated due to heating and volatilization of alcohol soap lye preparation process and an emulsified asphalt production process during single alcohol use; the surfactant increases a softening point of an emulsified asphalt product.

Description

technical field [0001] The invention relates to a preparation method of emulsified asphalt, in particular to a preparation method of high-grade road emulsified asphalt. Background technique [0002] High-grade road emulsified asphalt is a high-tech product, mainly used in high-grade road paving and other industries, and its manufacturing technology requires high requirements. The performance of modified emulsified asphalt currently manufactured in China is poor, the quality is unstable, and there is a big gap compared with similar foreign products, and the price is high. There is an urgent need for a high-performance, low-cost high-grade road emulsified asphalt preparation process. , to produce this product to meet market demand. Contents of the invention [0003] The purpose of the present invention is to provide a method for preparing high-grade road emulsified asphalt aiming at the above-mentioned defects in the prior art. [0004] Its technical scheme is made by ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/07C08L95/00C08K13/02C08K3/32C08K5/103C08K5/3417C08K5/20C08K5/3415
Inventor 张松房梁延民冷亮张伟宋峰星
Owner KENLI SANHE NEW MATERIAL TECH
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