CN103881745A - Coal asphalt material for paving high-grade road and preparation method of coal asphalt material - Google Patents
Coal asphalt material for paving high-grade road and preparation method of coal asphalt material Download PDFInfo
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Abstract
The invention relates to a coal asphalt material for paving a high-grade road and a preparation method of the coal asphalt material. The existing preparation method of the coal asphalt has the defects of low coal asphalt utilization rate, large modifier dosage, high cost, complicated process, poor material stability and the like. The method disclosed by the invention comprises the following steps: taking mid-low temperature coal asphalt, and hotly melting to obtain a sticky substance; adding a plasticizer, and adding anhydride compounds and a lewis acid after agitating; adding polyethylene glycol after heating reaction, and then dewatering after reacting again, so as to obtain the coal asphalt material for paving the high-grade road. By adopting the process, the condensation phenomenon of the coal asphalt at high temperature is removed, and the low-temperature fragility and the cracking property of the coal asphalt are changed, meanwhile, the toxic properties of polycyclic aromatic hydrocarbon are greatly reduced, the additional value of the coal asphalt is increased, and favorable economic benefits can be generated.
Description
Technical field
the present invention relates to a kind of coal pitch prill material, be specifically related to a kind of advanced road making coal pitch material and preparation method thereof.
Background technology
Be accompanied by the development of extensive Road construction, road-making material demand grows with each passing day, and the especially supply of bituminous material and quality becomes the lifeblood that restriction advanced road develops.Due to Chinese national economy fast development, energy demand is constantly increased, International Crude Oil climbs up and up, and petroleum pitch price is also rapid growth.But in the energy consumption structure of China, coal accounts for 70%, and other two kinds of fossil energy oil and natural gas account for respectively 20% and 3.5%, for petroleum resources shortage, and the China of rich coal resources, there is the low situation that utilization ratio is low, added value is low in the product coal-tar pitch of Coal Chemical Industry.Therefore coal-tar pitch is carried out to the key subjects that " technological innovation, industrial upgrading, energy-saving and emission-reduction " are China's Coal Chemical Industry deep process technology development.In, low temperature coal-tar pitch is similar to petroleum pitch in proterties, can be used as the substitute of petroleum pitch after chemical physics modification.Supply falls short of demand and the problem of quality dissatisfaction can greatly to alleviate like this petroleum pitch, increases the added value of coal-tar pitch simultaneously, produces munificent economic benefit.In, the softening temperature of low temperature coal-tar pitch is generally 45 ~ 95 ℃, and the softening temperature of road asphalt is 40～55 ℃, obviously coal-tar pitch is better as its high-temperature behavior of road bitumen, but just easily produces cracking in low temp area, the phenomenons such as brittle failure, cause the generation of meeting the tendency of the application difficult problem of coal-tar pitch on road.
Coal-tar pitch, as road bitumen, also had some researchs in recent years.As take coal-tar pitch, coking solvent oil as main raw material, add coal pitch material prepared by some macromolecular materials and antiaging agent, the utilization ratio of coal-tar pitch is 30
wt% left and right, the consumption of properties-correcting agent is excessive, has increased cost.And for example by 10 ~ 45
wt% coal-tar pitch and 55 ~ 90
wtafter % petroleum pitch mixes in colloidal mill, then add SBS multipolymer in system, obtain road coal pitch material, but this material technology process complexity, stability of material is poor.
Summary of the invention
The object of this invention is to provide a kind of advanced road making coal pitch material and preparation method thereof, change the molecular structure of coal-tar pitch by chemical process, prepare the advanced road pitch that has high temperature performance concurrently.
The technical solution adopted in the present invention is:
The preparation method of coal pitch material for advanced road making, is characterized in that:
Realized by following steps:
Step 1: get the middle low temperature coal-tar pitch of 150 weight parts, at 120-150 ℃ of temperature, hot melt obtains thick thing;
Step 2: add the fluidizer of 5-25 weight part, stir 1h, proceed to afterwards in round-bottomed flask, add the anhydrides compound of 10-20 weight part, react 2-3h at 120-180 ℃ of temperature;
Step 3: add the polyoxyethylene glycol of 5-15 weight part, then react 2-3h, dehydration obtains advanced road making coal pitch material.
In step 1, choose softening temperature and be the middle low temperature coal-tar pitch of 65-95 ℃.
In step 2, it is misery that fluidizer is selected from a carbolineum, anthracene oil, mixing carbolineum, dioctyl phthalate (DOP), dioctyl terephthalate, O-phthalic. 13 esters, dicyclohexyl phthalate, trioctyl trimellitate, trimellitic acid Witepsol W-S 55, epoxy soybean oil, Yatall MA, aromatic hydrocarbon oil, animal oleic acid, vegetable oil acid.
In step 2, anhydrides compound is selected from affixture, the affixture of pyromellitic acid anhydride, the alkylene Succinic anhydried of maleic anhydride, tung oil acid anhydride, tong ma anhydride, poly-nonane diacid acid anhydride, trimellitic anhydride, trimellitic anhydride and dihydroxyphenyl propane.
In step 3, polyoxyethylene glycol is PEG 300, PEG 400, PEG 500, PEG 600, PEG 1000, PEG 1500, PEG 2000 or PEG 4000.
As described in the advanced road making coal pitch material that makes of preparation method.
The present invention has the following advantages:
During the present invention adopts, low temperature coal-tar pitch is raw material, by the main component of Study on Coal pitch, pointedly by chemical reaction bonding anhydrides long chain molecule on the polycyclic aromatic hydrocarbons of coal-tar pitch, and then alkyd condensation obtains flexible coal tar pitch modification system, this modified technique eliminated coal-tar pitch self at high temperature from polycondensation phenomenon, change the fragile under low temperature and cracking performance of coal-tar pitch, greatly reduce the toxic of condensed-nuclei aromatics simultaneously, made it to become a kind of high performance advanced road pitch.High-performance, advanced road pitch prepared by the present invention is that centering low temperature coal-tar pitch has been carried out the production technique of " technological innovation, industrial upgrading, energy-saving and emission-reduction ", this mode has been alleviated petroleum pitch demand greatly and the not high shortcoming of quality product greatly, increased the added value of coal-tar pitch simultaneously, produce munificent economic benefit, brought great opportunity to develop to Coal Chemical Industry deep processing industry, and material cost is cheap, modified technique is simple, easy handling, environmental protection.
Accompanying drawing explanation
fig. 1 is that expression formula is simplified in the reaction of similar product and anhydrides molecule in coal-tar pitch.
Embodiment
Below in conjunction with embodiment, the present invention will be described in detail.
The preparation method of coal pitch material for advanced road making involved in the present invention, make many rings and condensed-nuclei aromatics in rigidity coal-tar pitch with anhydrides material, diels-alder reaction occur at a certain temperature under lewis acidic katalysis,, then there is alkyd condensation in the coal pitch material that can obtain weak rigidity.Specifically realized by following steps:
Step 1: get the middle low temperature coal-tar pitch of 150 weight parts, at 120-150 ℃ of temperature, hot melt obtains thick thing;
Step 2: add the fluidizer of 5-25 weight part, stir 1h, proceed to afterwards in round-bottomed flask, add the anhydrides compound of 10-20 weight part, react 2-3h at 120-180 ℃ of temperature;
Step 3: add the polyoxyethylene glycol of 5-15 weight part, then react 2-3h, dehydration obtains advanced road making coal pitch material.
In step 1, choose softening temperature and be the middle low temperature coal-tar pitch of 65-95 ℃;
In step 2, it is misery that fluidizer is selected from a carbolineum, anthracene oil, mixing carbolineum, dioctyl phthalate (DOP), dioctyl terephthalate, O-phthalic. one or both in 13 esters, dicyclohexyl phthalate, trioctyl trimellitate, trimellitic acid Witepsol W-S 55, epoxy soybean oil, Yatall MA, aromatic hydrocarbon oil, animal oleic acid, vegetable oil acid;
In step 2, anhydrides compound is selected from maleic anhydride, tung oil acid anhydride, tong ma anhydride, poly-nonane diacid acid anhydride, trimellitic anhydride, the affixture of trimellitic anhydride and dihydroxyphenyl propane (by dihydroxyphenyl propane and trimellitic anhydride with the mol ratio of 1:2 at 180 ℃ of hybrid reaction 15min, the solidifying agent making grinds through pulverizing the product obtaining), the affixture of pyromellitic acid anhydride (pyromellitic acid anhydride and polycaprolactone addition and mixture, preparation method referring to " numerous husband leaves nothing usable to the invading enemy. Process Technology of Polymer, 19798(6): 65-66. "), one or both in alkylene Succinic anhydried,
In step 3, polyoxyethylene glycol is one or both in PEG 300, PEG 400, PEG 500, PEG 600, PEG 1000, PEG 1500, PEG 2000 or PEG 4000.
Embodiment 1:
Step 1: get the middle low temperature coal-tar pitch of 150 weight parts, at 120 ℃ of temperature, hot melt obtains thick thing;
Step 2: add the fluidizer of 5 weight parts, stir 1h, proceed to afterwards in round-bottomed flask, add the anhydrides compound of 10 weight parts, react 2h at 120 ℃ of temperature;
Step 3: add the polyoxyethylene glycol of 5 weight parts, then react 2h, dehydration obtains advanced road making coal pitch material.
In step 1, choose softening temperature and be the middle low temperature coal-tar pitch of 65 ℃;
In step 2, fluidizer is selected from a carbolineum, anthracene oil, mixing carbolineum, dioctyl phthalate (DOP);
In step 2, anhydrides compound is selected from maleic anhydride, tung oil acid anhydride;
In step 3, polyoxyethylene glycol is selected from PEG 300, PEG 400.
Embodiment 2:
Step 1: get the middle low temperature coal-tar pitch of 150 weight parts, at 135 ℃ of temperature, hot melt obtains thick thing;
Step 2: add the fluidizer of 15 weight parts, stir 1h, proceed to afterwards in round-bottomed flask, add the anhydrides compound of 15 weight parts, react 2h at 150 ℃ of temperature;
Step 3: add the polyoxyethylene glycol of 10 weight parts, then react 2h, dehydration obtains advanced road making coal pitch material.
In step 1, choose softening temperature and be the middle low temperature coal-tar pitch of 80 ℃;
In step 2, fluidizer is selected from dioctyl terephthalate, O-phthalic is misery. 13 esters, dicyclohexyl phthalate, trioctyl trimellitate, trimellitic acid Witepsol W-S 55;
In step 2, anhydrides compound is selected from tong ma anhydride, poly-nonane diacid acid anhydride, trimellitic anhydride;
In step 3, polyoxyethylene glycol is selected from PEG 400, PEG 600, PEG 1000.
Embodiment 3:
Step 1: get the middle low temperature coal-tar pitch of 150 weight parts, at 150 ℃ of temperature, hot melt obtains thick thing;
Step 2: add the fluidizer of 25 weight parts, stir 1h, proceed to afterwards in round-bottomed flask, add the anhydrides compound of 20 weight parts, react 3h at 180 ℃ of temperature;
Step 3: add the polyoxyethylene glycol of 15 weight parts, then react 3h, dehydration obtains advanced road making coal pitch material.
In step 1, choose softening temperature and be the middle low temperature coal-tar pitch of 95 ℃;
In step 2, fluidizer is selected from epoxy soybean oil, Yatall MA, aromatic hydrocarbon oil, animal oleic acid, vegetable oil acid;
In step 2, anhydrides compound be selected from trimellitic anhydride and dihydroxyphenyl propane affixture (by dihydroxyphenyl propane and trimellitic anhydride with the mol ratio of 1:2 at 180 ℃ of hybrid reaction 15min, the solidifying agent making grinds through pulverizing the product that obtains), the affixture of pyromellitic acid anhydride (pyromellitic acid anhydride and polycaprolactone addition and mixture, preparation method referring to " numerous husband leaves nothing usable to the invading enemy. Process Technology of Polymer, 19798(6): 65-66. "), alkylene Succinic anhydried;
In step 3, polyoxyethylene glycol is selected from PEG 1500, PEG 2000 or PEG 4000.
Embodiment 4:
Step 1: get the middle low temperature coal-tar pitch of 150 weight parts, at 120 ℃ of temperature, hot melt obtains thick thing;
Step 2: add the fluidizer of 5 weight parts, stir 1h, proceed to afterwards in round-bottomed flask, add the anhydrides compound of 15 weight parts, react 2h at 120 ℃ of temperature;
Step 3: add the polyoxyethylene glycol of 10 weight parts, then react 3h, dehydration obtains advanced road making coal pitch material.
In step 1, choose softening temperature and be the middle low temperature coal-tar pitch of 65 ℃;
In step 2, fluidizer is that the dioctyl phthalate (DOP) of 2 weight parts and the O-phthalic of 3 weight parts are misery. 13 esters;
In step 2, anhydrides compound is the affixture (by dihydroxyphenyl propane and trimellitic anhydride with the mol ratio of 1:2 at 180 ℃ of hybrid reaction 15min, the solidifying agent making grinds through pulverizing the product obtaining) of trimellitic anhydride and dihydroxyphenyl propane;
In step 3, polyoxyethylene glycol is PEG 2000.
Embodiment 5:
Step 1: get the middle low temperature coal-tar pitch of 150 weight parts, at 150 ℃ of temperature, hot melt obtains thick thing;
Step 2: add the fluidizer of 20 weight parts, stir 1h, proceed to afterwards in round-bottomed flask, add the anhydrides compound of 10 weight parts, react 3h at 150 ℃ of temperature;
Step 3: add the polyoxyethylene glycol of 5 weight parts, then react 3h, dehydration obtains advanced road making coal pitch material.
In step 1, choose softening temperature and be the middle low temperature coal-tar pitch of 75 ℃;
In step 2, fluidizer is 5 weight part mixing carbolineums, 5 weight part dioctyl phthalate (DOP)s, 5 weight part anthracene oils and 5 parts by weight of trimelitic Witepsol W-S 55s;
In step 2, anhydrides compound is the affixture (by dihydroxyphenyl propane and trimellitic anhydride with the mol ratio of 1:2 at 180 ℃ of hybrid reaction 15min, the solidifying agent making grinds through pulverizing the product obtaining) of trimellitic anhydride and dihydroxyphenyl propane;
In step 3, polyoxyethylene glycol is PEG 400.
Embodiment 6:
Step 1: get the middle low temperature coal-tar pitch of 150 weight parts, at 150 ℃ of temperature, hot melt obtains thick thing;
Step 2: add the fluidizer of 15 weight parts, stir 1h, proceed to afterwards in round-bottomed flask, add the anhydrides compound of 20 weight parts, react 2h at 150 ℃ of temperature;
Step 3: add the polyoxyethylene glycol of 10 weight parts, then react 2h, dehydration obtains advanced road making coal pitch material.
In step 1, choose softening temperature and be the middle low temperature coal-tar pitch of 75 ℃;
In step 2, fluidizer is 5 weight part dibutyl terephthalates, 5 weight part one carbolineums and 5 weight part epoxy soybean oils;
In step 2, anhydrides compound is 10 weight part maleic anhydrides and 10 weight part alkylene Succinic anhydrieds;
In step 3, polyoxyethylene glycol is 5 weight part PEG300 and 5 weight part PEG4000.
Embodiment 7:
Step 1: get the middle low temperature coal-tar pitch of 150 weight parts, at 150 ℃ of temperature, hot melt obtains thick thing;
Step 2: add the fluidizer of 20 weight parts, stir 1h, proceed to afterwards in round-bottomed flask, add the anhydrides compound of 20 weight parts, react 2h at 150 ℃ of temperature;
Step 3: add the polyoxyethylene glycol of 10 weight parts, then react 2h, dehydration obtains advanced road making coal pitch material.
In step 1, choose softening temperature and be the middle low temperature coal-tar pitch of 95 ℃;
In step 2, fluidizer is 10 weight part animal oleic acid, 5 weight part aromatic hydrocarbon oil and 5 parts by weight of trimelitic three monooctyl esters;
In step 2, anhydrides compound is the affixture (by dihydroxyphenyl propane and trimellitic anhydride with the mol ratio of 1:2 at 180 ℃ of hybrid reaction 15min, the solidifying agent making grinds through pulverizing the product obtaining) of trimellitic anhydride and dihydroxyphenyl propane;
In step 3, polyoxyethylene glycol is 5 weight part PEG 300 and 5 weight part PEG 2000.
Embodiment 8:
Step 1: get the middle low temperature coal-tar pitch of 150 weight parts, at 150 ℃ of temperature, hot melt obtains thick thing;
Step 2: add the fluidizer of 25 weight parts, stir 1h, proceed to afterwards in round-bottomed flask, add the anhydrides compound of 20 weight parts, react 3h at 150 ℃ of temperature;
Step 3: add the polyoxyethylene glycol of 10 weight parts, then react 2h, dehydration obtains advanced road making coal pitch material.
In step 1, choose softening temperature and be the middle low temperature coal-tar pitch of 95 ℃;
In step 2, fluidizer is 10 weight part dicyclohexyl phthalates, 10 weight part vegetable oil acids and 5 weight part Yatall MAs;
In step 2, anhydrides compound is poly-nonane diacid acid anhydride, 5 weight part trimellitic anhydride and 5 weight part tong ma anhydrides of 10 weight parts;
In step 3, polyoxyethylene glycol is 5 weight part PEG 400 and 5 weight part PEG 1500.
Embodiment 9:
Step 1: get the middle low temperature coal-tar pitch of 150 weight parts, at 150 ℃ of temperature, hot melt obtains thick thing;
Step 2: add the fluidizer of 25 weight parts, stir 1h, proceed to afterwards in round-bottomed flask, add the anhydrides compound of 25 weight parts, react 2h at 150 ℃ of temperature;
Step 3: add the polyoxyethylene glycol of 10 weight parts, then react 2h, dehydration obtains advanced road making coal pitch material.
In step 1, choose softening temperature and be the middle low temperature coal-tar pitch of 95 ℃;
In step 2, fluidizer is 5 weight part dicyclohexyl phthalates, 10 weight part epoxy soybean oils, 5 weight part animal oleic acid and 5 weight part mixing carbolineums;
In step 2, anhydrides compound is the affixture (mixture that pyromellitic acid anhydride and polycaprolactone addition obtain of 10 weight part pyromellitic acid anhydrides, preparation method referring to " numerous husband leaves nothing usable to the invading enemy. Process Technology of Polymer, 19798(6): 65-66. "), 5 weight part tung oil acid anhydrides, 5 weight part trimellitic anhydride and 5 weight part tong ma anhydrides;
In step 3, polyoxyethylene glycol is 5 weight part PEG 600 and 5 weight part PEG 1000.
Reference examples:
Get raw coal asphalt sample 1, sample 2, sample 3, carry out the test of pitch three norms, test result is shown in Table 1.
The performance test of table 1 pitch three norms
Result shows, the Development of New Paving Asphalt Materials that during the present invention adopts, low temperature coal-tar pitch is material modification, from having changed in essence the high temperature performance of former coal charge pitch, make pitch softening point between 46.2 ~ 52.1, ductility increases between 1025 ~ 1102, penetration degree is between 79.2 ~ 87.3, this meets the national standard of asphalt for high grade road.
It is cited that content of the present invention is not limited to embodiment, and the conversion of any equivalence that those of ordinary skills take technical solution of the present invention by reading specification sheets of the present invention, is claim of the present invention and contains.
Claims (6)
1. the preparation method of coal pitch material for advanced road making, is characterized in that:
Realized by following steps:
Step 1: get the middle low temperature coal-tar pitch of 150 weight parts, at 120-150 ℃ of temperature, hot melt obtains thick thing;
Step 2: add the fluidizer of 5-25 weight part, stir 1h, proceed to afterwards in round-bottomed flask, add the anhydrides compound of 10-20 weight part, react 2-3h at 120-180 ℃ of temperature;
Step 3: add the polyoxyethylene glycol of 5-15 weight part, then react 2-3h, dehydration obtains advanced road making coal pitch material.
2. the preparation method of coal pitch material for advanced road making according to claim 1, is characterized in that:
In step 1, choose softening temperature and be the middle low temperature coal-tar pitch of 65-95 ℃.
3. the preparation method of coal pitch material for advanced road making according to claim 2, is characterized in that:
In step 2, it is misery that fluidizer is selected from a carbolineum, anthracene oil, mixing carbolineum, dioctyl phthalate (DOP), dioctyl terephthalate, O-phthalic. 13 esters, dicyclohexyl phthalate, trioctyl trimellitate, trimellitic acid Witepsol W-S 55, epoxy soybean oil, Yatall MA, aromatic hydrocarbon oil, animal oleic acid, vegetable oil acid.
4. the preparation method of coal pitch material for advanced road making according to claim 3, is characterized in that:
In step 2, anhydrides compound is selected from affixture, the affixture of pyromellitic acid anhydride, the alkylene Succinic anhydried of maleic anhydride, tung oil acid anhydride, tong ma anhydride, poly-nonane diacid acid anhydride, trimellitic anhydride, trimellitic anhydride and dihydroxyphenyl propane.
5. the preparation method of coal pitch material for advanced road making according to claim 4, is characterized in that:
In step 3, polyoxyethylene glycol is PEG 300, PEG 400, PEG 500, PEG 600, PEG 1000, PEG 1500, PEG 2000 or PEG 4000.
6. the advanced road making coal pitch material that preparation method as claimed in claim 5 makes.
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| CN104119790A (en) * | 2014-08-06 | 2014-10-29 | 苏州靖羽新材料有限公司 | Building coating for external use |
| CN108219488A (en) * | 2018-01-05 | 2018-06-29 | 黄河三角洲京博化工研究院有限公司 | Agent and preparation method thereof, asphalt material are prolonged in a kind of increasing |
| RU2662747C1 (en) * | 2017-05-31 | 2018-07-30 | Наталия Васильевна Хавроненко | Method for producing thermoplastic pitchpolymeric composition and products made of it |
| WO2019223201A1 (en) * | 2018-05-23 | 2019-11-28 | 东南大学 | Biological epoxy asphalt and preparation method therefor and application thereof |
| CN110540853A (en) * | 2019-08-12 | 2019-12-06 | 中国科学院山西煤炭化学研究所 | Method for preparing spinnable asphalt from pyromellitic dianhydride and polystyrene modified coal pitch |
| CN111575040A (en) * | 2020-05-26 | 2020-08-25 | 北京旭阳科技有限公司 | Production method of high-softening-point asphalt |
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| US4332704A (en) * | 1980-06-12 | 1982-06-01 | Owens-Corning Fiberglas Corporation | Modified asphalt compositions |
| CN101792606A (en) * | 2010-03-09 | 2010-08-04 | 东南大学 | High-performance thermosetting epoxy asphalt material with wide temperature field and preparation method thereof |
| CN102276997B (en) * | 2011-08-05 | 2012-11-21 | 上海应用技术学院 | Modified coal pitch material as well as preparation method and application thereof |
| CN102702759A (en) * | 2012-06-27 | 2012-10-03 | 哈尔滨工业大学 | Phase change modified asphalt and preparation method thereof |
| CN102924935B (en) * | 2012-11-07 | 2015-07-08 | 中交第一公路勘察设计研究院有限公司 | Method used for modifying low-temperature coal tar asphalt into paving asphalt |
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| CN104119790A (en) * | 2014-08-06 | 2014-10-29 | 苏州靖羽新材料有限公司 | Building coating for external use |
| CN104119790B (en) * | 2014-08-06 | 2016-04-13 | 苏州靖羽新材料有限公司 | A kind of external application building coating |
| RU2662747C1 (en) * | 2017-05-31 | 2018-07-30 | Наталия Васильевна Хавроненко | Method for producing thermoplastic pitchpolymeric composition and products made of it |
| CN108219488A (en) * | 2018-01-05 | 2018-06-29 | 黄河三角洲京博化工研究院有限公司 | Agent and preparation method thereof, asphalt material are prolonged in a kind of increasing |
| WO2019223201A1 (en) * | 2018-05-23 | 2019-11-28 | 东南大学 | Biological epoxy asphalt and preparation method therefor and application thereof |
| CN110540853A (en) * | 2019-08-12 | 2019-12-06 | 中国科学院山西煤炭化学研究所 | Method for preparing spinnable asphalt from pyromellitic dianhydride and polystyrene modified coal pitch |
| CN110540853B (en) * | 2019-08-12 | 2021-03-26 | 中国科学院山西煤炭化学研究所 | Method for preparing spinnable asphalt from pyromellitic dianhydride and polystyrene modified coal pitch |
| CN111575040A (en) * | 2020-05-26 | 2020-08-25 | 北京旭阳科技有限公司 | Production method of high-softening-point asphalt |
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