CN102924935A - Method used for modifying low-temperature coal tar asphalt into paving asphalt - Google Patents
Method used for modifying low-temperature coal tar asphalt into paving asphalt Download PDFInfo
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- CN102924935A CN102924935A CN2012104392012A CN201210439201A CN102924935A CN 102924935 A CN102924935 A CN 102924935A CN 2012104392012 A CN2012104392012 A CN 2012104392012A CN 201210439201 A CN201210439201 A CN 201210439201A CN 102924935 A CN102924935 A CN 102924935A
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Abstract
The invention relates to a method used for modifying low-temperature coal tar asphalt into paving asphalt. Naphthalene in asphalt is easy to separate out at low temperature, so that the asphalt loses plasticity, and a pavement is prone to cause cracks in winter. According to the method used for modifying the low-temperature coal tar asphalt into the paving asphalt, the low-temperature coal tar asphalt is heated and then added with raw materials A, B and C, and the paving asphalt is obtained after mixing, reaction and cooling. Raw materials A comprise coking solvent oil, anthracene oil, styrene butadiene styrene block copolymer, waste rubber powder, regenerated rubber, chloroprene rubber, butadiene styrene rubber, ethylene propylene rubber, polrvinyl chloride and polystyrene. Raw materials B comprise sulphur, thiazoles and octadecanamide class compounds. Raw materials C comprise trimethyl diphenoquinone (TMDQ), isopropyl phenylenediamine (IPPD) and phenyl-alpha-naphthylamine. According to the method used for modifying the low-temperature coal tar asphalt into the paving asphalt, the raw materials A increase the colloid content of the low-temperature coal tar asphalt, improve the elementary composition, chemical constituents and colloid structure of the low-temperature coal tar asphalt, and enable the low-temperature coal tar asphalt to be more similar to petroleum asphalt and suitable for being used in pavement project construction. The raw materials B enable the combination between the raw materials A and low-temperature coal tar until a three-position net-shaped structure is formed. The raw materials C improve the anti-aging performance of the finally obtained paving asphalt.
Description
Technical field:
The invention belongs to coalite tar asphalt modification applied technical field, specifically a kind of is the method for road bitumen with the coalite tar asphalt modification.
Technical background:
Petroleum pitch is as the existing very long history of road bitumen, day by day in short supply along with petroleum resources in recent years, the development and use of coal-tar pitch are taken seriously, coal-tar pitch, the full name coal-tar pitch, comprising coal-tar heavy oil pitch, coal-tar middle oil pitch and coalite tar pitch, is road bitumen but present research all only limits to coal-tar heavy oil pitch and coal-tar middle oil asphalt modification.More or less all there are some problems in this process.When the coal-tar heavy oil asphalt modification is road bitumen, be accompanied by generation and the volatilization of hazardous and noxious substances, especially benzo (a) pyrene, therefore can produce harm to people's health as the road bitumen surfacing, although some scholars attempts to reduce its toxicity, use after for example coal-tar heavy oil pitch being mixed with petroleum pitch, but poor effect.And coal-tar middle oil pitch is owing to its character reason, and the Paving Asphalt Low Temperature Property that obtains after the modification does not satisfy code requirement.Coalite tar pitch from high, the coal-tar middle oil asphaltic nature is fully different, the modification difficulty is increased, and stability and the resistance to deterioration of pitch also can't solve after the modification, but coalite tar pitch possesses an advantageous advantage, be exactly coalite tar bitumen poisoning substances content seldom, particularly benzo (a) pyrene content is very low.But the naphthalene content of coalite tar pitch also is an insoluble problem, and for also having carried out a large amount of research in the industry, effect is general.Naphthalene is easily separated out during low temperature in pitch, makes pitch lose plasticity, causes the road surface easily to produce the crack winter, and volatile, the distillation of naphthalene is accelerated pitch and " wear out " under normal temperature condition, makes its shortening in work-ing life, is difficult to reach construction requirement.
Summary of the invention:
It is the method for road bitumen with the coalite tar asphalt modification that the present invention will provide a kind of, being difficult to be modified as the present situation of road bitumen for present low temperature coal tar pitch, and solving and shortens work-ing life, is difficult to reach the technical problem of construction requirement.
A kind of is the method for road bitumen with the coalite tar asphalt modification, comprises the steps: successively
It is 50 ~ 80 parts coalite tar asphalt heating to 120 ~ 200 ℃ with mass fraction, add successively mass fraction and be the C raw material that 40 ~ 70 parts A raw material, B raw material that mass fraction is 1 ~ 5 part and mass fraction are 1 ~ 5 part, at 120 ~ 260 ℃ of lower mixings, through 2 ~ 10 hours, after question response is finished, leave standstill cooling and namely obtain road bitumen;
Described A raw material is coking solvent oil, carbolineum, SBS(styrene-butadiene-styrene block copolymer), waste Crumb rubber, regenerated rubber, chloroprene rubber, styrene-butadiene rubber(SBR), ethylene-propylene rubber(EPR), polyvinyl chloride and polystyrene one or more;
Described B raw material is one or more of sulphur, thiazoles and stearic amide compounds;
Described C raw material is TMDQ(2.2.4-trimethylammonium-1,2-dihyaroquinoline polymkeric substance), IPPD(N-phenyl-N '-sec.-propyl-Ursol D) and one or more of phenyl-a-naphthylamine.
Described mixing method is that one or more of colloidal mill mixing and use reactor hybrid reaction are sheared, used to the stirring of use agitator, use shears.
Compared with prior art, advantage of the present invention is:
1, can reach the service requirements of desirable road bitumen: in the present invention, the adding of A raw material can effectively increase the gum level of coalite tar pitch, improve that it is elementary composition, chemical composition and colloidal structure, make it and the more similar road project that is applicable to of petroleum pitch, the adding of B raw material can make between A raw material and the coalite tar in conjunction with tightr, until form three reticulated structures, the adding of C raw material is improved final road bitumen resistance to deterioration.
2, construction is convenient: the coalite tar pitch hazardous and noxious substances content that use this law makes is much smaller than high, coal-tar middle oil pitch, and wherein the content of benzo (a) pyrene can reduce by 50 ~ 70%, fully conformance with standard requirement.Simultaneously, the mix temperature of this pitch is at 70 ~ 90 ℃, and the temperature that paves rolls temperature at 40 ~ 50 ℃ at 60 ~ 80 ℃, has not only made things convenient for construction, and effectively reduces this road bitumen use temperature, reaches energy-saving and emission-reduction, the purpose of low-carbon environment-friendly.
3, low-carbon environment-friendly: present method is used the byproduct that the coalite tar distil process produces, and it such as discards, deposits at problem before having solved, and namely caters to the environmental protection trend of Coal Chemical Industry industry, creates again economic worth.
Embodiment:
Below in conjunction with embodiment the present invention is described in detail.
Embodiment 1
With 550g coalite tar pitch, pack into and be heated to 160 ℃ in the container, make it fully mobile, in whipping process, add carbolineum 400g, waste Crumb rubber 44g, sulphur 3g, TMDQ(2.2.4-trimethylammonium-1,2-dihyaroquinoline polymkeric substance) 3g, fully react 8 hours after, leave standstill cooling, obtain road bitumen.
Embodiment 2
With 500g coalite tar pitch, pack into and be heated to 180 ℃ in the container, make it fully mobile, in shear history, add coking solvent oil 455g, regenerated rubber 39g, thiazole 4g, TMDQ(2.2.4-trimethylammonium-1,2-dihyaroquinoline polymkeric substance) 2g, fully react 6 hours after, leave standstill cooling, obtain road bitumen.
Embodiment 3
With 600g coalite tar pitch, pack into and be heated to 170 ℃ in the container, make it fully mobile, in colloidal mill mixing process, add carbolineum 350g, waste Crumb rubber 44g, sulphur 3g, TMDQ(2.2.4-trimethylammonium-1,2-dihyaroquinoline polymkeric substance) 3g, fully react 4 hours after, leave standstill cooling, obtain road bitumen.
Embodiment 4
With 700g coalite tar pitch, packing into is heated to 140 ℃ in the reactor, makes it fully mobile, in whipping process, add carbolineum 280g, SBS(styrene-butadiene-styrene block copolymer) 15g, sulphur 3g, IPPD(N-phenyl-N '-sec.-propyl-Ursol D) 1.5g, TMDQ(2.2.4-trimethylammonium-1,2-dihyaroquinoline polymkeric substance) 0.5g, fully reaction was left standstill cooling after 4 hours, obtained road bitumen.
Embodiment 5
With 500g coalite tar pitch, pack into and be heated to 180 ℃ in the container, make it fully mobile, in shear history, add coking solvent oil 475g, chloroprene rubber 20g, thiazole 3g, TMDQ(2.2.4-trimethylammonium-1,2-dihyaroquinoline polymkeric substance) 2g, fully react (temperature of reaction is 200 ℃) after 6 hours, leave standstill cooling, obtain road bitumen.
Embodiment 6
With 500g coalite tar pitch, pack into and be heated to 180 ℃ in the container, make it fully mobile, in shear history, add coking solvent oil 465g, polyvinyl chloride 30g, thiazole 3g, TMDQ(2.2.4-trimethylammonium-1,2-dihyaroquinoline polymkeric substance) 2g, fully react (temperature of reaction is 240 ℃) after 6 hours, leave standstill cooling, obtain road bitumen.
Embodiment 7
With 500g coalite tar pitch, pack into and be heated to 190 ℃ in the container, make it fully mobile, in the colloidal mill process of lapping, add successively carbolineum 405g, styrene-butadiene rubber(SBR) 30g, ethylene-propylene rubber(EPR) 30g, polystyrene 30g, thiazole 3g, TMDQ(2.2.4-trimethylammonium-1,2-dihyaroquinoline polymkeric substance) 2g, fully react (temperature of reaction is 240 ℃) after 9 hours, leave standstill cooling, obtain road bitumen.
Embodiment 8
With 500g coalite tar pitch, pack into and be heated to 200 ℃ in the container, make it fully mobile, put into reactor, add successively coking solvent oil 375g, chloroprene rubber 30g, regenerated rubber 60g, polystyrene 30g, thiazole 1.5g, stearic amide 1.5g, TMDQ(2.2.4-trimethylammonium-1,2-dihyaroquinoline polymkeric substance) 1.5g, phenyl-a-naphthylamine 0.5g, fully react (temperature of reaction is 240 ℃) after 9 hours, leave standstill cooling, obtain road bitumen.
The road bitumen performance index that obtain after table 1 modification
Claims (2)
1. one kind is the method for road bitumen with the coalite tar asphalt modification, it is characterized in that:
Comprise the steps: successively
It is 50 ~ 80 parts coalite tar asphalt heating to 120 ~ 200 ℃ with mass fraction, add successively mass fraction and be the C raw material that 40 ~ 70 parts A raw material, B raw material that mass fraction is 1 ~ 5 part and mass fraction are 1 ~ 5 part, at 120 ~ 260 ℃ of lower mixings, through 2 ~ 10 hours, after question response is finished, leave standstill cooling and namely obtain road bitumen;
Described A raw material is one or more of coking solvent oil, carbolineum, styrene-butadiene-styrene block copolymer, waste Crumb rubber, regenerated rubber, chloroprene rubber, styrene-butadiene rubber(SBR), ethylene-propylene rubber(EPR), polyvinyl chloride and polystyrene;
Described B raw material is one or more of sulphur, thiazoles and stearic amide compounds;
Described C raw material is 2,2,4-trimethylammonium-1, one or more of 2-dihyaroquinoline polymkeric substance, N-phenyl-N '-sec.-propyl-Ursol D and phenyl-a-naphthylamine.
According to claim 1 described a kind of be the method for road bitumen with the coalite tar asphalt modification, it is characterized in that:
Described mixing method is that one or more of colloidal mill mixing and use reactor hybrid reaction are sheared, used to the stirring of use agitator, use shears.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103834422A (en) * | 2014-03-24 | 2014-06-04 | 武汉科技大学 | Modified coal tar and preparation method thereof |
| CN103881745B (en) * | 2014-04-01 | 2016-02-10 | 中交瑞通路桥养护科技有限公司 | Advanced road making coal pitch material and preparation method thereof |
| CN105907112A (en) * | 2016-05-12 | 2016-08-31 | 湘潭大学 | High-elasticity high/low-temperature-resistant road joint sealing material and preparation method thereof |
| CN108059837A (en) * | 2016-11-09 | 2018-05-22 | 中国石油化工股份有限公司 | A kind of modifying agent mother liquor and road asphalt and preparation method thereof |
| CN108070265A (en) * | 2016-11-09 | 2018-05-25 | 中国石油化工股份有限公司 | A kind of preparation method of modifying agent mother liquor and road asphalt |
| CN110437631A (en) * | 2018-05-04 | 2019-11-12 | 中国石油化工股份有限公司 | A kind of modifying agent mother liquor, road asphalt and its preparation method |
| CN110437632A (en) * | 2018-05-04 | 2019-11-12 | 中国石油化工股份有限公司 | A kind of modifying agent mother liquor and road asphalt and its preparation method |
| CN110437627A (en) * | 2018-05-04 | 2019-11-12 | 中国石油化工股份有限公司 | A kind of modifying agent mother liquor and road asphalt and preparation method thereof |
| CN110437628A (en) * | 2018-05-04 | 2019-11-12 | 中国石油化工股份有限公司 | A kind of modifying agent mother liquor and road asphalt and its synthetic method |
| CN112920613A (en) * | 2021-01-27 | 2021-06-08 | 广西京帅防水科技有限公司 | Modified asphalt waterproofing membrane anti-aging agent and preparation facilities thereof |
| CN115677267A (en) * | 2021-07-27 | 2023-02-03 | 中国石油化工股份有限公司 | Anti-shedding agent, anti-shedding bird-repelling asphalt mixture and preparation method thereof |
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| CN103834422A (en) * | 2014-03-24 | 2014-06-04 | 武汉科技大学 | Modified coal tar and preparation method thereof |
| CN103834422B (en) * | 2014-03-24 | 2015-04-01 | 武汉科技大学 | Modified coal tar and preparation method thereof |
| CN103881745B (en) * | 2014-04-01 | 2016-02-10 | 中交瑞通路桥养护科技有限公司 | Advanced road making coal pitch material and preparation method thereof |
| CN105907112A (en) * | 2016-05-12 | 2016-08-31 | 湘潭大学 | High-elasticity high/low-temperature-resistant road joint sealing material and preparation method thereof |
| CN105907112B (en) * | 2016-05-12 | 2018-01-09 | 湘潭大学 | A kind of road sealing material of high resiliency and anti-high and low-temp performance and preparation method thereof |
| CN108059837A (en) * | 2016-11-09 | 2018-05-22 | 中国石油化工股份有限公司 | A kind of modifying agent mother liquor and road asphalt and preparation method thereof |
| CN108070265A (en) * | 2016-11-09 | 2018-05-25 | 中国石油化工股份有限公司 | A kind of preparation method of modifying agent mother liquor and road asphalt |
| CN110437631A (en) * | 2018-05-04 | 2019-11-12 | 中国石油化工股份有限公司 | A kind of modifying agent mother liquor, road asphalt and its preparation method |
| CN110437632A (en) * | 2018-05-04 | 2019-11-12 | 中国石油化工股份有限公司 | A kind of modifying agent mother liquor and road asphalt and its preparation method |
| CN110437627A (en) * | 2018-05-04 | 2019-11-12 | 中国石油化工股份有限公司 | A kind of modifying agent mother liquor and road asphalt and preparation method thereof |
| CN110437628A (en) * | 2018-05-04 | 2019-11-12 | 中国石油化工股份有限公司 | A kind of modifying agent mother liquor and road asphalt and its synthetic method |
| CN110437627B (en) * | 2018-05-04 | 2021-05-04 | 中国石油化工股份有限公司 | Modifier mother liquor, road asphalt and preparation method thereof |
| CN110437632B (en) * | 2018-05-04 | 2021-05-04 | 中国石油化工股份有限公司 | Modifier mother liquor and road asphalt and preparation method thereof |
| CN110437628B (en) * | 2018-05-04 | 2021-05-04 | 中国石油化工股份有限公司 | Modifier mother liquor, road asphalt and synthesis method thereof |
| CN112920613A (en) * | 2021-01-27 | 2021-06-08 | 广西京帅防水科技有限公司 | Modified asphalt waterproofing membrane anti-aging agent and preparation facilities thereof |
| CN115677267A (en) * | 2021-07-27 | 2023-02-03 | 中国石油化工股份有限公司 | Anti-shedding agent, anti-shedding bird-repelling asphalt mixture and preparation method thereof |
| CN115677267B (en) * | 2021-07-27 | 2023-10-10 | 中国石油化工股份有限公司 | Anti-falling agent, anti-falling bird repellent asphalt mixture and preparation method thereof |
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