A warm asphalt mixing agent, its preparation method and application

A warm-mix agent and asphalt technology, applied in the field of asphalt warm-mix agent and additives for warm-mix asphalt, can solve the problems of environmental pollution, use temperature, poor thermal stability and anti-aging performance, and high service temperature, and achieve stable performance. , Improve the anti-aging performance and take into account the effect of high and low temperature performance

Active Publication Date: 2019-05-21
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] In order to solve the problems in the prior art that the use temperature of asphalt warm mix agent is too high, it is easy to cause environmental pollution or the use temperature is low, but the thermal stability and anti-aging performance are not good, the present invention provides a warm mix agent, which can be applied to In the preparation of various asphalt or asphalt mixture, it can significantly reduce the production and use temperature of asphalt, reduce the air pollution caused by asphalt production and use, and at the same time improve the performance of asphalt

Method used

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  • A warm asphalt mixing agent, its preparation method and application
  • A warm asphalt mixing agent, its preparation method and application
  • A warm asphalt mixing agent, its preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0041] (1) Preparation of warm mix agent

[0042] 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%.

[0043] 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 0.89mol 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;

[0044] ②Weigh 7000g of the fourth-line extraction oil with 70% aromatics content, and add 441g of complex [Cu(NH 3 ) 4 ] SO 4 , placed in another container and heated to 350°C, and kept stirring at this temperature for 180min to obtain aromatic hydrocarbon complex components;

[0045] ③Introduce the aromatic hydrocarbon complexing component into the intermediate, keep the temperature a...

Embodiment 2

[0049] (1) Preparation of warm mix agent

[0050] 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%.

[0051] 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;

[0052] 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 ], placed in another airtight container and heated to 270 ° C, stirred at this temperature for 120 min at a constant temperature to obtain the aromatic complex component;

[0053] ③Introduce the aromatic hydrocarbon complexing component into the above-me...

Embodiment 3

[0057] (1) Preparation of warm mix agent

[0058] 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%.

[0059] 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;

[0060] ②Weigh 3500g of phenolic refined extract oil with aromatics content of 78%, and add 164g of complex Ni(CO) to it 4 , placed in another airtight container and heated to 310°C, stirred at a constant temperature for 160min at this temperature to obtain the aromatic complex component;

[0061] ③Introduce the aromatic hydrocarbon complexing component into the above-mentioned intermediate, kee...

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Abstract

The present invention provides an asphalt warm mix agent, a preparation method and applications thereof. The warm mix agent preparation method comprises: under the effect of a catalyst, carrying out a reaction on a macromolecule alkane and an elemental halogen at a certain temperature under a certain pressure to obtain an intermediate; uniformly mixing an aromatic hydrocarbon oil and a complexing compound to obtain an aromatic hydrocarbon complexing component; and carrying out a reaction on the aromatic hydrocarbon complexing component and the intermediate at a certain temperature to obtain the warm mix agent. According to the present invention, with the application of the warm mix agent in the preparation of the warm mix type asphalt, the warm mix effect can be provided for the asphalt, the high temperature performance and the low temperature performance of the asphalt are considered, the melting temperature of the asphalt and the viscosity of the asphalt at the melting temperature are reduced, and the thermal stability and the aging resistance can be improved.

Description

technical field [0001] The invention relates to an asphalt warm mix agent, in particular to an additive for warm mix asphalt, and belongs to the field of petroleum industry and basic material chemistry. Background technique [0002] The asphalt mixture used in road engineering in the past is generally divided into two types according to the mixing construction temperature: cold mix asphalt mixture CMA (Cold Mix Asphalt) and hot mix asphalt mixture HMA (Hot Mix Asphalt). Cold-mix asphalt mixture is generally mixed and paved with emulsified asphalt or liquid asphalt and aggregate at room temperature, without heating the aggregate and binder, which can save a lot of energy. However, the initial strength of cold-mix asphalt mixture is low, and it is difficult to meet the requirements of important projects such as expressways and heavy-duty traffic roads. Hot mix asphalt mixture is widely used and has good road performance. However, in the production process of hot mix asphalt ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L91/00C08L95/00C08K3/06
CPCY02A30/30
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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