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Modified asphalt compatilizer and preparation method thereof

A technology of modified asphalt and compatibilizer, which is applied to building components, building insulation materials, buildings, etc., can solve the problems of affecting the use effect of compatibilizers, high price of aromatic-rich oil, poor economic benefits, etc. The effect of stability, improving anti-aging ability and reducing production cost

Active Publication Date: 2021-09-03
SHANDONG JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problems existing in the compatibilizer in the prior art are: (1) oil products rich in aromatic oil are generally more expensive, have low output, and poor economic benefits; Disadvantages of different properties leading to unstable properties, affecting the use effect as a compatibilizer

Method used

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  • Modified asphalt compatilizer and preparation method thereof
  • Modified asphalt compatilizer and preparation method thereof
  • Modified asphalt compatilizer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Prepare modified asphalt phase solvent, the steps are as follows:

[0037] (1) Pretreatment

[0038] Heat 5.0kg of waste engine oil residues to 160°C and perform centrifugation. The waste engine oil residues used are waste lubricating oil residues after centrifugal separation and molecular distillation process. The rotation speed is 4000r / min. The solid impurities in the bottom layer are then filtered through a screen with a pore size of 1.18mm to obtain pure waste oil residue treatment oil;

[0039] (2) Pre-stirring

[0040] Transfer waste engine oil residue treatment oil and 2.5kg aromatic oil to the high-speed shear pre-mixing system for pre-mixing to make the two fully miscible. The aromatic oil used is special aromatic oil for reclaimed rubber;

[0041] (3) cut

[0042] After pre-stirring, the miscible in step (2) is sent to the machine for high-speed shearing, and the rotating speed is 4500r / min. During the shearing process, 1.5kg C9 petroleum resin is first mi...

Embodiment 2

[0047] Prepare modified asphalt phase solvent, the steps are as follows:

[0048] (1) Pretreatment

[0049] Heat 7.0kg of waste engine oil residues to 160°C and perform centrifugation. The waste engine oil residues used are waste lubricating oil residues after centrifugal separation and molecular distillation process. The rotation speed is 4000r / min. The bottom solid impurities are separated, and then filtered through a sieve with a pore size of 1.18mm to obtain pure waste engine oil residue treatment oil;

[0050] (2) Pre-stirring

[0051] Transfer waste engine oil residue treatment oil and 1.5kg aromatic oil to the high-speed shear pre-mixing system for pre-mixing to make the two fully miscible. The aromatic oil used is special aromatic oil for reclaimed rubber;

[0052] (3) cut

[0053] After pre-stirring, the miscible in step (2) is sent to the machine for high-speed shearing, and the rotating speed is 4500r / min. During the shearing process, 1.0kg C9 petroleum resin is fi...

Embodiment 3

[0057] Prepare modified asphalt phase solvent, the steps are as follows:

[0058] (1) Pretreatment

[0059] Heat 6.0kg of waste engine oil residue to 160°C and then centrifuge. The waste engine oil residue used is the waste lubricating oil residue after centrifugal separation and molecular distillation process. The speed is 4000r / min. The bottom solid impurities are separated, and then filtered through a sieve with a pore size of 1.18mm to obtain pure waste engine oil residue treatment oil;

[0060] (2) Pre-stirring

[0061] Transfer waste engine oil residue treatment oil and 2.0kg aromatic oil to the high-speed shear pre-mixing system for pre-mixing to make the two fully miscible. The aromatic oil used is special aromatic oil for reclaimed rubber;

[0062] (3) cut

[0063] After pre-stirring, the miscible in step (2) is sent into the machine for high-speed shearing, and the rotating speed is 4500r / min. During the shearing process, 1.3kg C9 petroleum resin is first mixed in...

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Abstract

The invention discloses a modified asphalt compatilizer and a preparation method thereof, and belongs to the technical field of asphalt processing. The modified asphalt compatilizer is prepared from the following raw materials in parts by mass: 40-80 parts of waste engine oil residues, 10-30 parts of aromatic hydrocarbon oil, 5-20 parts of C9 petroleum resin and 1-15 parts of a stabilizer. The modified asphalt compatilizer is prepared through the steps of pretreatment, pre-stirring, shearing, pH value adjustment and the like. According to the technical scheme, a large amount of waste engine oil residues can be recycled, the preparation cost of the compatilizer is reduced, secondary effective utilization of the waste engine oil residues is achieved, the treatment cost of the waste engine oil residues is reduced, and pollution of the waste engine oil residues to the environment is avoided.

Description

technical field [0001] The invention belongs to the technical field of asphalt processing, and in particular relates to a modified asphalt compatibilizer and a preparation method thereof. Background technique [0002] Due to the consumption of additives, oxidation, mixing of wear products and pollutants, and water absorption, the function of engine oil is reduced during use, and then it becomes invalid and scrapped as waste engine oil (REO). At present, the treatment process of waste engine oil can generally effectively recycle 70-80% of waste engine oil, and the remaining 20-30% becomes real residue of waste engine oil (REOB) due to the large amount of impurities mixed in and cannot be effectively recovered. The annual production of REOB in my country is about 1 million tons, and its harmless treatment costs a lot. The effective recycling of REOB has become a major problem that my country urgently needs to overcome. [0003] At present, SBS modified asphalt is widely used i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L91/00C08L57/02C08K3/06C08K3/34C08K3/22C08K3/32C08L55/02
CPCC08L95/00C08L91/00C08L57/02C08K3/06C08K3/346C08K3/22C08K3/32C08L55/02C08L2205/08C08K2201/011C08K2003/2296C08L2201/08C08K2003/2224C08K2003/323
Inventor 许萌郭德栋王腾陈颖张圣涛郭昌云
Owner SHANDONG JIAOTONG UNIV
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