Composite-complexation type regenerator for worn-out mixture of asphaltum and preparation method

A waste asphalt and regeneration agent technology, applied in the field of resource-environmental chemistry, can solve problems such as waste of resources, environmental pollution, and land occupation, and achieve the effects of reducing project costs, saving land resources, and low production costs

Inactive Publication Date: 2005-11-16
辽宁省交通科学研究院有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The discharge of these wastes not only occupies land, wastes resources, but also causes permanent environmental pollution.

Method used

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  • Composite-complexation type regenerator for worn-out mixture of asphaltum and preparation method
  • Composite-complexation type regenerator for worn-out mixture of asphaltum and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A regenerant is prepared from monomer regenerant components (weight ratio) (a): (b) = 50:50 ratio to restore the physical and chemical properties of "Shenda" waste recycled asphalt, and the amount of A regenerant is 8.3% (accounting for recycling old asphalt), the results are shown in Table 2. It is known from Table 2 that the physical and chemical indicators of "Shenda" waste asphalt fully meet the requirements of the GB50092-96 standard.

Embodiment 2

[0043] B regenerant is prepared from monomer regenerant components (weight ratio) (a): (b): (c) = 34:45:21 ratio, used to restore the physical and chemical properties of "Shenda" waste recycled asphalt, B regenerated The amount of additive added is 8.3% (accounting for recovered old asphalt), and the results are shown in Table 2. It is known from Table 2 that the physical and chemical indicators of "Shenda" waste asphalt fully meet the requirements of the GB50092-96 standard.

[0044]

Embodiment 3

[0046] The C regenerant is prepared from monomer regenerant components (weight ratio) (a): (b): (c): (e) = 30: 26: 23: 21 ratio, which is used to restore "Shenda" waste recycling Asphalt physical and chemical properties, the addition of C regenerant is 8.3% (accounting for recovered old asphalt), the results are shown in Table 2. It is known from Table 2 that the physical and chemical indicators of "Shenda" waste asphalt fully meet the requirements of the GB50092-96 standard.

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Abstract

A compounding-complexing regenerating agent for the mixture of used and waste asphalt is prepared from the rejected materials of oil refinery, which are rich in aromatic component and colloid and include the oil extracted from furaldehyde, asphalt extracted from propane, the oil slurry thrown out during catalytic cracking, nitrogen dregs generated by denitriding furaldehyde and the third or the fourth side-cut fractional oil of cycloalkyl crude oil, through respectively dewatering and extracting, and selective mixing.

Description

technical field [0001] The invention belongs to the field of resource-environmental chemistry, and in particular relates to a composite-complexation type waste asphalt mixture regeneration agent and a preparation process thereof. Background technique [0002] Research on waste asphalt mixture regeneration application technology has been a topic that people have been paying attention to. As early as 1915, the United States began to study this aspect. By the early 1980s, more than 40 states in the United States used recycled asphalt mixture, and the number of uses increased rapidly. At present, the recycling rate of waste asphalt mixture in the United States has reached more than 80%. [0003] In the mid-1970s, Japan and some European countries such as the Federal Republic of Germany, the Netherlands, and Finland successively carried out experimental research and rapidly promoted the application. Effective technology and equipment for on-site cold recycling of waste asphalt ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00
Inventor 廖克俭丛玉凤魏毅闫锋杨彦海范兴华李洪斌高立波
Owner 辽宁省交通科学研究院有限责任公司
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