Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Modifier mother liquor, road asphalt, and synthesis method thereof

A technology of road asphalt and modifier, which is applied in the direction of building components, building insulation materials, buildings, etc., can solve the problems of large grinding volume, poor thermal storage stability, and large power consumption, and achieve reasonable colloid structure and high Enhanced low-temperature performance and reduced toxicity

Active Publication Date: 2019-11-12
CHINA PETROLEUM & CHEM CORP +1
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this method, the proportion of coal tar pitch is relatively high (50-30 parts of coal tar pitch), and the proportion of petroleum pitch is relatively small (10-20 parts of petroleum pitch). , leading to too high content of asphaltene in the asphalt colloidal structure, unreasonable asphalt colloid composition matching, which will lead to poor flexibility of asphalt, poor low temperature performance and thermal storage stability
In addition, adding 5-35 parts of waste rubber powder to asphalt will lead to too high mixing temperature of asphalt and poor thermal storage stability
The preparation process is to pre-mix petroleum pitch, coal tar pitch and co-solvent with SBS, and then grind through a colloid mill. Large size, high power consumption
[0006] Neither of the above two techniques has elaborated on the detoxification performance of bitumen

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Add 90 parts of anthracene oil with a distillation range of 320~360°C into the reaction kettle, add 10 parts of terephthalaldehyde and 3 parts of potassium bisulfate, heat up, control the reaction temperature to 200°C, and stir for 3 hours , the stirring speed was 500 rev / min, and the modified anthracene oil A1 was obtained.

[0045] Add 84 parts of modified anthracene oil into the reaction kettle, add 0.9 parts of polyphosphoric acid (the concentration of polyphosphoric acid is 110wt%, the same below), heat to 110°C, and stir for 2 hours. Continue to raise the temperature to about 160°C, then add 1.8 parts of polyphosphoric acid, and stir for 1 hour to obtain a modified mother liquor intermediate.

[0046] Add 12 parts of SBS (star structure, molecular weight 150,000, the same below) to modified anthracene oil A1, heat to 150°C, and stir for 5 hours to obtain modifier mother liquid A2.

Embodiment 2

[0048] Add 94 parts of anthracene oil with a distillation range of 320~360°C into the reaction kettle, add 13 parts of terephthalaldehyde and 2 parts of trifluoromethanesulfonic acid, heat up, control the reaction temperature to 245°C, and stir for After 3 hours, the stirring speed was 500 rpm to obtain modified anthracene oil A3.

[0049]Add 81 parts of modified anthracene oil into the reaction kettle, add 0.4 parts of polyphosphoric acid, heat to 100° C., and stir for 2 hours. Continue to raise the temperature to about 150°C, then add 1.1 parts of polyphosphoric acid, and stir for 1 hour to obtain a modified mother liquor intermediate.

[0050] Add 14 parts of SBS to modified anthracene oil A3, heat to 155°C, and stir for 6 hours to obtain modifier mother liquor A4.

Embodiment 3

[0052] Add 86 parts of anthracene oil with a distillation range of 320~360°C into the reaction kettle, add 7 parts of terephthalaldehyde and 3 parts of potassium bisulfate, heat up, control the reaction temperature to 175°C, and stir for 3 hours , the stirring speed was 500 rev / min, and the modified anthracene oil A5 was obtained.

[0053] Add 84 parts of modified anthracene oil into the reaction kettle, add 0.9 parts of polyphosphoric acid, heat to 110°C, and stir for 2 hours. Continue to raise the temperature to about 160°C, then add 2.1 parts of polyphosphoric acid, and stir for 1 hour to obtain a modified mother liquor intermediate.

[0054] Add 10 parts of SBS to modified anthracene oil A5, heat to 150°C, and stir for 6 hours to obtain modifier mother liquor A6.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
softening pointaaaaaaaaaa
softening pointaaaaaaaaaa
softening pointaaaaaaaaaa
Login to View More

Abstract

The invention discloses a modifier mother liquor, road asphalt, and a synthesis method thereof. The modifier mother liquor comprises, by weight, 78 to 94 parts of modified anthracene oil, 0.4 to 3.5 parts of polyphosphoric acid, and 4 to 20 parts of SBS. According to the synthesis method, a phthalic aldehyde compound and anthracene oil fractions are subjected to nucleophilic addition and graftingpolymerization, polyphosphoric acid is adopted for condensation modification of the modified anthracene oil, so that an appropriate condensation degree of the modified anthracene oil is achieved, andat the same time, the aromaticity of the modified anthracene oil is increased, and an appropriate colloid content is achieved; the modified mother liquor, petroleum asphalt, and coal pitch are combined to prepare the road asphalt, the colloid structure of the road asphalt product is more reasonable, asphalt high and low temperature performance is improved, and asphalt toxicity is reduced.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and mainly relates to a modifier mother liquid, road asphalt and a synthesis method thereof, in particular to a preparation method of road asphalt produced from coal tar pitch and petroleum pitch as raw materials. Background technique [0002] With the continuous expansion of road construction scale, the market demand for road asphalt is also growing at a high speed. At present, oil resources are increasingly scarce, and the processing value of coal tar pitch (coal tar pitch) is low, and the market price is only about half of that of petroleum pitch. For this reason, researchers are constantly exploring whether coal tar pitch can be used as a raw material for the production of road pitch . Coal tar pitch produced by traditional methods has disadvantages such as poor heat sensitivity, easy aging, and poor ductility, which cannot meet the needs of road construction. Aiming at the shortc...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08L91/00C08L53/02C08K3/32C08L95/00
CPCC08K2003/329C08L91/00C08L95/00C08L2205/025C08L2205/035C08L53/02C08K3/32
Inventor 徐青柏陈杰宣根海宁爱民李志军程国香申峻侯荣国
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com