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A kind of warm mixed colored synthetic asphalt and its preparation method

A technology for color synthesis and asphalt synthesis, which is applied in building insulation materials, building components, construction, etc., can solve the problem of the degree of reaction between the intermediate and the first aromatic oil, the difficulty of controlling the reaction depth, affecting the application effect of asphalt, and the properties of warm mix agents Instability and other problems, to achieve the effect of improving anti-aging performance, benefiting environmental protection, and reducing sensitivity

Active Publication Date: 2020-11-10
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the preparation process of the warm mix agent, not only the reaction speed of the intermediate is relatively slow, but also the activity of the intermediate is low, which leads to the degree of reaction between the intermediate and the first aromatic oil, and the depth of reaction is not easy to control, and the properties of the warm mix agent obtained Unstable, affecting the application effect in asphalt

Method used

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preparation example Construction

[0049] The concrete preparation method of warm mixing agent of the present invention comprises:

[0050] a. Heat and melt the mixed polymer alkanes and place them in a closed container, keep the temperature at 400°C~480°C, fill the space of the reaction container with protective gas (such as nitrogen), and keep the pressure at 3~5MPa, and put the halogen element Pass into the molten polymer alkanes, and in the presence of the first catalyst, react for 30-60 minutes to obtain the intermediate;

[0051] b. Add the complex compound to the first aromatic hydrocarbon oil, and stir at a constant temperature of 270°C to 350°C for 120 to 180min to obtain the aromatic hydrocarbon complex component;

[0052] c. Add the aromatic hydrocarbon complexing component to the above intermediate, make the temperature 350°C~400°C, fill with protective gas (such as nitrogen) to keep the pressure at 2~4MPa, and react at constant temperature for 60~120min to obtain the described warm mix.

[0053] ...

Embodiment 1

[0061] (1) Preparation of warm mix agent

[0062] a. Weigh 100kg of coal gasification and then carry out the synthesis reaction of mixed alkanes, the carbon number of mixed alkanes is 30-60, heat the mixed alkanes to 480°C, add 0.3kg of catalyst anhydrous CuCl 2 , placed in a closed container, maintain this temperature and introduce 89 moles of chlorine gas, and feed nitrogen to keep the pressure of the reaction container at 3MPa, and react for 30 minutes to obtain intermediate-1;

[0063] b. take by weighing aromatics content and be 700kg of the four-line extraction oil of 70 wt%, add 44.1kg of complexes [Cu(NH 3 ) 4 ] SO 4 , placed in another airtight container and heated to 350°C, and kept stirring at this temperature for 180min to obtain the aromatic hydrocarbon complex component-1;

[0064] c. Add aromatic hydrocarbon complexing component-1 to the above-mentioned intermediate-1, make the temperature 400°C, fill with nitrogen to keep the pressure at 2MPa, and react at c...

Embodiment 2

[0071] (1) Preparation of warm mix agent

[0072] a. Weigh 700kg of mixed alkanes obtained by synthetic reaction with natural gas as raw material, the carbon number of mixed alkanes is 110-130, heat the mixed alkanes to 400°C, add 2.1kg of catalyst anhydrous CrCl 3 , placed in a closed container, maintain this temperature to introduce 115 moles of bromine, and feed nitrogen to keep the pressure of the reaction container at 4MPa, react for 45min to obtain intermediate-2;

[0073] b. take by weighing the furfural refining extraction oil 100kg that aromatics content is 57wt%, add 1.7kg complex (NH 4 ) 3 [Cr(NCS) 6 ], placed in another airtight container and heated to 310°C, and reacted at this temperature for 160 minutes at a constant temperature to obtain aromatic hydrocarbon complexing component-2;

[0074] c. Add aromatic hydrocarbon complexing component-2 to the above-mentioned intermediate-2, make the temperature 375°C, fill with nitrogen to keep the pressure at 3MPa, and...

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Abstract

The invention provides warm-mixed colorful synthetic asphalt and a preparation method thereof. The warm-mixed colorful synthetic asphalt is prepared from the following components in parts by mass: 1-7parts of warm mixing agent, 88-97 parts of synthetic asphalt and 2-5 parts of a coloring agent. A preparation method of the warm mixing agent comprises the following steps: firstly, enabling high molecular alkane to react with a halogen element in presence of a first catalyst to obtain an intermediate; evenly mixing first aromatic hydrocarbon oil with a complex to obtain an aromatic hydrocarbon complex component; then, mixing the aromatic hydrocarbon complex component with the intermediate for carrying out a reaction to obtain the warm mixing agent. The warm0mixed colorful synthetic asphalt is not only low in use temperature, but also can improve the heat stability and heat aging resistance of the asphalt, so that colorful asphalt pavement is bright in colorful, and the service life of the colorful asphalt pavement is prolonged.

Description

technical field [0001] The invention relates to a warm-mix colored synthetic asphalt and a preparation method thereof, belonging to the fields of petroleum industry and basic material chemistry. Background technique [0002] With the continuous improvement of people's quality of life, road surfaces, especially parks and sidewalks, are required to be colored, and colored asphalt pavement is used instead of black asphalt pavement to beautify the environment. However, due to the high temperature during the production and construction of colored asphalt mixtures in the past, it is easy to cause the following adverse phenomena: one is to pollute the air and affect the living environment of residents during construction; the other is to waste energy; the third is to affect the color of colored asphalt pavement; four. It is easy to cause thermal aging or high temperature cracking of colored asphalt, causing performance deterioration. In order to solve these problems, it is an effe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08L91/00C08K3/22C08K3/26C04B26/26
CPCC04B26/26C08L95/00C08L2201/08C08L91/00C08K2003/2206C08K2003/265Y02A30/30
Inventor 陈保莲陈杰徐青柏范思远张静宋乐春宁爱民李志军程国香
Owner CHINA PETROLEUM & CHEM CORP
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