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Asphalt additive, modified asphalt, its preparation method, application and preparation method of asphalt charcoal

An asphalt additive and modified asphalt technology, which is applied in the processing of tar asphalt/petroleum asphalt/natural asphalt, chemically processing tar asphalt/petroleum asphalt/natural asphalt, coking carbonaceous materials, etc. , complex process and other problems, to achieve the effect of low cost, simple operation and high carbon residue rate

Active Publication Date: 2018-04-27
SHANGHAI SHANSHAN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the defect that the modified asphalt method in the prior art has a complicated process and is difficult to effectively treat uniformly, and provides a kind of asphalt additive, modified asphalt, and its preparation method, application and asphalt carbonization. Preparation

Method used

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  • Asphalt additive, modified asphalt, its preparation method, application and preparation method of asphalt charcoal
  • Asphalt additive, modified asphalt, its preparation method, application and preparation method of asphalt charcoal

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Asphalt additive: Add 0.9 kg of furfural and 0.1 kg of p-toluenesulfonic acid into the reaction kettle at room temperature, stir and blend for 1 hour to obtain the additive.

[0032] Modified asphalt: Grind 3kg of coal tar pitch (softening point 102°C) through 60 mesh (250μm), and mix with 1kg of asphalt additive at room temperature for 1 hour to obtain modified asphalt.

[0033] Asphalt carbonization: the above-mentioned modified asphalt is raised to 1000°C at 5°C / min for carbonization treatment.

Embodiment 2

[0035] Asphalt additive: Add 0.98 kg of furfural and 0.02 kg of p-toluenesulfonic acid into the reaction kettle at room temperature, stir and blend for 1 hour to obtain the additive.

[0036] Modified asphalt: Heat 5kg of coal tar pitch (softening point 97°C) to 100°C, stir and blend with 1kg of asphalt additive to obtain modified asphalt.

[0037] Asphalt carbonization: The modified asphalt is raised to 1000°C at 10°C / min for carbonization.

Embodiment 3

[0039] Asphalt additive: Add 0.9 kg of furfural and 0.1 kg of p-toluenesulfonic acid into the reaction kettle at room temperature, stir and blend for 1 hour to obtain the additive.

[0040] Modified asphalt: Grind 3kg of petroleum asphalt (softening point 287°C) through 60 mesh (250μm), mix with 1kg of asphalt additive, stir and blend at room temperature for 1 hour to obtain modified asphalt.

[0041] Asphalt carbonization: The modified asphalt is raised to 1000°C at 5°C / min for carbonization.

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Abstract

The invention discloses asphalt additive, modified asphalt, its preparation method, application and preparation method of asphalt charcoal. The asphalt additive contains furfural and an acid with a melting point above 40°C. The preparation method of the modified asphalt comprises the following steps: blending the asphalt with the above-mentioned asphalt additive; wherein, when the softening point of the asphalt is greater than or equal to 100°C, the asphalt is pulverized before blending; The softening point of the asphalt is <100°C, and the asphalt is heated and melted before blending; the mass ratio of the asphalt to the asphalt additive is (1:0.05)~(1:10). The preparation method of the modified asphalt has the advantages of simple operation, low cost and mild conditions, and the obtained modified asphalt has low true density and high carbon residual rate after carbonization treatment.

Description

technical field [0001] The invention relates to an asphalt additive, modified asphalt, its preparation method, application and preparation method of asphalt charcoal. Background technique [0002] After the traditional coal pitch or petroleum pitch is carbonized in the liquid phase, soft carbon is obtained, which has the characteristics of high true density and easy graphitization. If the asphalt is modified to keep a solid or semi-solid structure during the carbonization process, a carbon material with higher hardness than traditional soft carbon can be obtained. This carbon material has the characteristics of low true density and high structural disorder , and it is not easy to generate graphite at high temperature. After further subsequent treatment, it can be used as structural material, adsorption material, electrode material, etc. Moreover, the modified asphalt has a higher carbon residue rate than ordinary asphalt, which improves the yield and is not prone to crackin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10C3/02C10C3/00C10B55/00C10B57/06
Inventor 方郁野谢秋生张鹏昌陈志明薄维通
Owner SHANGHAI SHANSHAN TECH CO LTD
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