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Warm-mix sulfur asphalt mixture and preparation method thereof

A technology of asphalt mixture and mixture, applied in the direction of climate change adaptation and air quality improvement, can solve the problems of environmental pollution, poor thermal stability and anti-aging performance of asphalt, shorten the reaction time and improve the anti-aging performance. , the effect of reducing the mixing temperature

Active Publication Date: 2018-11-06
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0028] In order to solve the problem in the prior art that the processing and use temperature of sulfur asphalt mixture is relatively high, which may easily cause environmental pollution or that the heat stability and anti-aging performance of the asphalt are not good even though the use temperature can be reduced after adding a warm mix agent, the present invention Provides a warm-mix sulfur asphalt mixture, in which a self-made warm mix agent is added to the asphalt, which can significantly reduce the production and use temperature of the sulfur-asphalt mixture, and reduce the air pollution caused by the production and use of the sulfur-asphalt mixture, At the same time, it can also improve the thermal stability of asphalt and improve the anti-aging performance

Method used

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  • Warm-mix sulfur asphalt mixture and preparation method thereof
  • Warm-mix sulfur asphalt mixture and preparation method thereof
  • Warm-mix sulfur asphalt mixture and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] (1) Preparation of warm mix agent

[0075] Using Ni metal as a catalyst, the CO obtained after gasification of coal, and H 2 The synthesis reaction is carried out to obtain mixed alkanes in which alkanes with carbon numbers of 30 to 60 account for 90%.

[0076] ①Weigh 1000g of the above-mentioned mixed alkanes, about 1.2mol, put them in a closed container, heat to 480°C, add 3g of catalyst anhydrous CuCl 2 , keep introducing 0.89 mol of chlorine at this temperature, and feed nitrogen to keep the pressure of the reaction vessel at 3MPa, and react for 30min to obtain the intermediate;

[0077] ②Weigh 7000g of the fourth-line extraction oil with 70% aromatics content, and add 441g of complex [Cu(NH 3 ) 4 〕SO 4 And 44.1g of catalyst Cu, packed in another airtight container and heated to 350 ° C, at this temperature constant temperature reaction for 180min, to obtain aromatic complex components;

[0078] ③Introduce the aromatic hydrocarbon complexing component into the ...

Embodiment 2

[0085] (1) Preparation of warm mix agent

[0086] Using Co metal as a catalyst, the CO obtained after gasification of coal, and H 2 The synthesis reaction is carried out to obtain mixed alkanes in which alkanes with carbon numbers of 30 to 130 account for 90%.

[0087] ① Weigh 3500g of the above-mentioned mixed alkanes, about 4.5mol, put them in a closed container, heat to 400°C, add 31.5g of catalyst anhydrous MnCl 2 , keep introducing 1.16mol of chlorine at this temperature, and feed nitrogen to keep the pressure of the reaction vessel at 5MPa, and react for 60min to obtain the intermediate;

[0088] ②Weigh 1000g of catalytic cracking oil slurry with an aromatics content of 63%, and add 19g of complex K to it 4 [Fe(CN) 6 ] and 1.9g of catalyst Fe were placed in another airtight container and heated to 270°C, and reacted at a constant temperature for 120min at this temperature to obtain aromatic hydrocarbon complex components;

[0089] ③Introduce the aromatic hydrocarbon ...

Embodiment 3

[0096] (1) Preparation of warm mix agent

[0097] Using Fe metal as a catalyst, CO obtained from gasification of coal, and H 2 The synthesis reaction is carried out to obtain mixed alkanes in which alkanes with carbon numbers of 70 to 90 account for 90%.

[0098] ①Weigh 1000g of the above-mentioned mixed alkanes, about 0.8mol, put them in a closed container, heat to 440°C, add 6g of catalyst anhydrous NiCl 2 , keep the temperature and introduce 0.31mol of fluorine, and feed nitrogen to keep the pressure of the reaction vessel at 4MPa, and react for 45min to obtain the intermediate;

[0099] ②Weigh 3500g of phenolic refined oil with aromatics content of 78%, and add 164g of complex [Ni(CO) 4 ] and 16.4g of catalyst Ni were placed in another airtight container and heated to 310°C, and reacted at a constant temperature for 160min at this temperature to obtain the aromatic hydrocarbon complexing component;

[0100] ③Introduce the aromatic hydrocarbon complexing component into t...

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Abstract

The invention discloses a warm-mix sulfur asphalt mixture and a preparation method thereof. The warm-mix sulfur asphalt mixture comprises 4.0 to 6.0 parts of warm-mix sulfur asphalt, 1.0 to 3.0 parts of mineral powder and 91.0 to 95.0 parts of an aggregate, wherein the warm-mix sulfur asphalt comprises 0.5 to 7 parts of a warm-mix agent, 33 to 79.5 parts of matrix asphalt and 20 to 60 parts of sulfur. The warm-mix agent is prepared by the following method: reacting macromolecular alkane with elementary halogen in the presence of a catalyst to obtain an intermediate; reacting aromatic hydrocarbon oil with a complex in the presence of the catalyst to obtain an arene complex component; introducing the arene complex component into the intermediate, and performing reaction and curing at certain temperature to obtain the warm-mix agent. According to the mixture, the sulfur asphalt containing the warm-mix agent is used, and by the warm-mix agent, the heat stability of the asphalt is improved, the ageing resistance is improved, the usage temperature of the mixture is reduced, and air pollution caused by releasing of harmful gas in the mixture during use is reduced.

Description

technical field [0001] The invention relates to a warm-mix sulfur asphalt mixture and a preparation method thereof, in particular to a rutting-resistant asphalt mixture and a preparation method thereof. It belongs to the field of petroleum industry and basic material chemistry. Background technique [0002] Due to the increasing number of vehicles in our country and the heavy load of transportation, the phenomenon of rutting and wrapping on asphalt pavement is becoming more and more serious, especially in the hot areas in southern my country. This phenomenon has become one of the main damage forms of asphalt roads in our country, seriously affecting the driving safety and service life of asphalt roads. [0003] As far as the cement itself is concerned, the low viscosity of asphalt at 60°C is also one of the reasons for this damage. The 60°C viscosity of asphalt, as one of the indicators to characterize the high-temperature stability of asphalt, can well simulate the anti-f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/26C04B22/02
CPCY02A30/30Y02A50/20
Inventor 陈保莲范思远张静宁爱民李志军程国香
Owner CHINA PETROLEUM & CHEM CORP
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