CN108070265A - A kind of preparation method of modifying agent mother liquor and road asphalt - Google Patents
A kind of preparation method of modifying agent mother liquor and road asphalt Download PDFInfo
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- CN108070265A CN108070265A CN201610983349.0A CN201610983349A CN108070265A CN 108070265 A CN108070265 A CN 108070265A CN 201610983349 A CN201610983349 A CN 201610983349A CN 108070265 A CN108070265 A CN 108070265A
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- asphalt
- mother liquor
- modifying agent
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Working-Up Tar And Pitch (AREA)
Abstract
The invention discloses the preparation methods of a kind of modifying agent mother liquor and road asphalt.The preparation method of the modifying agent mother liquor includes：Carbolineum is added in reaction kettle, then adds in hydrogen peroxide, heat temperature raising, controlling reaction temperature is 90 ~ 150 DEG C, and stirring obtains modified carbolineum；Continue to add in high molecular polymer into reaction kettle, control temperature of reaction kettle as 120 ~ 180 DEG C, stirring obtains modifying agent mother liquor.Modifying agent mother liquor using the present invention is engaged with coal tar pitch and asphalt prepares road asphalt, is conducive to improve the high temperature performance and hot storage stability of pitch.
Description
Technical field
The invention belongs to chemical technology fields, relate generally to the preparation method of a kind of modifying agent mother liquor and road asphalt, special
It is not a kind of preparation method by the road asphalt of coal tar pitch and asphalt for raw material production.
Background technology
With the continuous expansion of highway construction scale, also synchronous high-speed increases the road asphalt market demand.Currently, oil provides
Source is increasingly deficient, and coal tar asphalt（Coal tar pitch）Processing added value is low, the market price is only half of asphalt or so,
For this purpose, researcher constantly probe into whether can using coal tar pitch as production road asphalt raw material.The coal of produced in conventional processes
Pitch can not meet the needs of road project there is the shortcomings of such as thermal sensitivity is poor, easy to aging, poor ductility.For
The shortcomings that in terms of coal tar pitch performance, coal tar pitch with asphalt is mixed, road asphalt material performance can be promoted, be one
Kind is one of feasible practical technique.
Using SBS as modified oil pitch prepared by macromolecule modifier, due to the modifying function of SBS, oil road is improved
The high temperature performance and response to temperature of road pitch so that bearing capacity, the fatigue resistance of Modified Bitumen Pavement are improved.
CN101985526A discloses a kind of composite modified asphalt for high-grade high road and preparation method thereof, uses
69% ~ 90% asphalt, 5% ~ 30% coal tar pitch, 1% ~ 10% Styrene-Butadiene-Styrene Block Copolymer etc.
The method for preparing composite modified asphalt, preparation process are that asphalt, coal tar pitch and s-B-S is embedding
Section copolymer etc. is common to be heated and is ground through colloid mill, stir to develop and is prepared into target product.It is given birth to using conventional modified pitch
Whole materials are all ground shearing by production. art, and milling time is long, power consumption is big.Since the asphalt content of coal tar pitch is excessively high,
Glue nuclear volume is excessive in pitch colloform texture, influences the colloform texture composition of pitch, can cause pitch poor in flexibility, elasticity
And deteriorated low temperature performance, steady heat storage performance are also bad.
CN103694716A discloses a kind of coal tar pitch of modification and preparation method thereof, using 10 ~ 20 parts of asphalt,
50 ~ 30 parts of coal tar pitch, 1 ~ 4 part of SBS, 5 ~ 35 waste Crumb rubber, 0.5 ~ 1 part fire retardant etc. prepare the side of modified pitch
Method.In the method, coal tar pitch accounting is higher（50 ~ 30 parts of coal tar pitch）, asphalt accounting is less（10 ~ 20 parts of oil drip
It is blue or green）, simultaneously because the asphalt content of coal tar pitch is excessively high（Typically larger than 20%）, the asphalitine in pitch colloform texture is caused to contain
Measure excessively high, the composition matching of pitch colloid is unreasonable, can cause pitch poor in flexibility, and cryogenic property and hot storage stability become
Difference.In addition, the mix temperature of pitch can be caused excessively high for the waste Crumb rubber that 5 ~ 35 parts are added in pitch and hot storage stability becomes
Difference.Its preparation process is to be pre-mixed asphalt, coal tar pitch and cosolvent and SBS, then is ground through colloid mill, simultaneous grinding
Process is needed the overground grinding of the larger component of the accountings such as asphalt, coal tar pitch and cosolvent and SBS, and the grinding scale of construction is big, power
Consumption is big.
The content of the invention
In view of the deficiencies of the prior art, it is special the present invention provides the preparation method of a kind of modifying agent mother liquor and road asphalt
It is not the preparation method of the road asphalt with coal tar pitch and petroleum pitch feedstock production.Modifying agent mother liquor and coal using the present invention
Pitch and asphalt, which are engaged, prepares road asphalt, is conducive to improve the high temperature performance and hot storage stability of pitch.
The method that the present invention prepares modifying agent mother liquor, including：
（1）Carbolineum is added in reaction kettle, then adds in hydrogen peroxide, heat temperature raising, controlling reaction temperature is 90 ~ 150 DEG C, excellent
Elect 100 ~ 140 DEG C as, stirring obtains modified carbolineum；
（2）Continue to add in high molecular polymer into reaction kettle, control temperature of reaction kettle as 120 ~ 180 DEG C, be preferably 140 ~ 160
DEG C, stirring obtains modifying agent mother liquor.
In the preparation method of modifying agent mother liquor of the present invention, in parts by weight, raw material dosage is as follows：
80 ~ 94 parts of carbolineum is preferably 82 ~ 92 parts,
Hydrogen peroxidase 10 .4 ~ 4.0 part are preferably 0.8 ~ 3.6 part
4 ~ 20 parts of high molecular polymer is preferably 6 ~ 18 parts.
The boiling range of the carbolineum is 320 ~ 420 DEG C, is preferably 340 ~ 400 DEG C.
The high molecular polymer is SBS or SBR, and molecular weight is 10 ~ 200,000.
The mass concentration of the hydrogen peroxide is 85% ~ 95%.
In the preparation method of modifying agent mother liquor of the present invention, step（1）When the mixing time is 0.5 ~ 5.0 small, stirring
200 ~ 2000 revs/min of speed.
In the preparation method of modifying agent mother liquor of the present invention, step（2）When the mixing time is 1 ~ 10 small, mixing speed
2000 ~ 6000 revs/min.
The present invention also provides the preparation method of road asphalt, including：
Selected from coal tar pitch and petroleum asphalt and above-mentioned modifying agent mother liquor are added in reaction kettle, are 100 ~ 180 DEG C in reaction temperature, preferably
Under the conditions of 120 ~ 160 DEG C, when stirring 1 ~ 10 is small, 500 ~ 4000 revs/min of mixing speed obtains road asphalt product.
In the preparation method of road asphalt provided by the invention, selected from coal tar pitch and petroleum asphalt with modifying agent mother liquor is mixed and is stirred
When the time mixed is 1 ~ 10 small, 500 ~ 4000 revs/min of mixing speed.
The preparation method of road asphalt provided by the invention, in parts by weight, raw material dosage is as follows：
5 ~ 40 parts of coal tar pitch,
50 ~ 70 parts of asphalt,
8 ~ 20 parts of modifying agent mother liquor.
The coal tar pitch is less than the medium temperature coal pitch of 30wt%, 72 ~ 95 DEG C of softening point for asphalt content.
The asphalt is less than 10wt%, 40 ~ 50 DEG C of softening point for asphalt content.
Modifying agent mother liquor prepared by the method for the present invention, both can be to finished product modifying road asphalt, can also be to building asphalt
And petroleum distillate heavy distillate is modified.
The present invention carries out condensation and modification using hydrogen peroxide to carbolineum, can significantly improve the aromaticity of carbolineum, and colloid contains
Amount increases, and is conducive to the swelling of polymer, and the introducing of oxygen-containing group so that the polarity of carbolineum component is strengthened, it is easier to inhale
It is attached to around the glue core of coal tar pitch, finally so that bituminous texture composition tends to be reasonable, the high temperature performance of pitch is all strengthened,
The thermal stability of pitch is also improved.
Specific embodiment
Technical scheme is described in detail with reference to embodiment, following embodiment is served only for this hair
Bright explanation, it is impossible to be interpreted as limiting the scope of the invention.Heretofore described number is parts by weight, wt%
For mass fraction.
Embodiment 1
The carbolineum that 82 parts of boiling ranges are 320 ~ 420 DEG C is added in reaction kettle, adds in 1.5 parts of hydrogen peroxide（Mass concentration is
90%）, 120 DEG C or so, when stirring 2 is small or so are heated to, obtains modified carbolineum A1.
15 parts of SBS are added in into A1（Molecular mass is 150,000）, and 140 DEG C are heated to, stirring 5 can be modified when small
Agent mother liquor A2.
Embodiment 2
The carbolineum that 90 parts of boiling ranges are 320 ~ 420 DEG C is added in reaction kettle, adds in 2.5 parts of hydrogen peroxide（Mass concentration is
90%）, 120 DEG C or so, when stirring 2 is small or so are heated to, obtains modified carbolineum A3.
12 parts of SBR are added in into A3（Molecular mass is 180,000）, and 140 DEG C are heated to, stirring 5 can be modified when small
Agent mother liquor A4.
Embodiment 3
By the asphalt M1 that 60 parts of softening points are 45 DEG C（Asphalt content is 8wt%）, 20 parts of softening points be 86 DEG C coal tar pitch
N1（Asphalt content is 26wt%）140 DEG C or so are heated to, adds in 14 parts of modifying agent mother liquor A2, agitator speed 2500
Rev/min, when stirring 2 is small.Can discharge after the completion of whipping process, be cooled to room temperature, purpose product.
Embodiment 4
The coal tar pitch N2 for being 78 DEG C by 68 parts of asphalt M1,36 parts of softening points（Asphalt content is 20wt%）It is heated to 120 DEG C
Left and right adds in 18 parts of modifying agent mother liquor A2, and agitator speed is 2500 revs/min, when stirring 2 is small.After the completion of whipping process
Can discharge, be cooled to room temperature, purpose product.
Embodiment 5
By the asphalt M2 that 52 parts of softening points are 47 DEG C（Asphalt content is 8.2wt%）, 10 parts of softening points be 82 DEG C coal drip
Blue or green N3（Asphalt content is 24wt%）160 DEG C or so are heated to, adds in 10 parts of modifying agent mother liquor A2, agitator speed is
2500 revs/min, when stirring 2 is small.Can discharge after the completion of whipping process, be cooled to room temperature, purpose product.
Embodiment 6
By the asphalt M3 that 68 parts of softening points are 43 DEG C（Asphalt content is 8.2wt%）, 20 parts of coal tar pitch N2 be heated to 120
DEG C or so, the modifying agent mother liquor A2 of 10 parts of addition, agitator speed is 2500 revs/min, when stirring 2 is small.Whipping process is completed
After can discharge, be cooled to room temperature, purpose product.
Embodiment 7
60 parts of asphalt M1,20 parts of coal tar pitch N1 are heated to 140 DEG C or so, add in 14 parts of modifying agent mother liquor A4, stirring
Device rotating speed is 2500 revs/min, when stirring 2 is small.Can discharge after the completion of whipping process, be cooled to room temperature, purpose production
Product.
Comparative example 1
By 82 parts of carbolineums（With embodiment 1）It adds in reaction kettle, adds in 15 parts of SBS（With embodiment 1）, and it is heated to 140 DEG C of left sides
The right side, agitator speed are 4000 revs/min, and stirring 5 can obtain modifying agent mother liquor A5 when small.
60 parts of asphalt M1,20 parts of coal tar pitch N1 are heated to 140 DEG C or so, add in 14 parts of modifying agent mother liquor A5,
Agitator speed is 2500 revs/min, when stirring 2 is small.Can discharge after the completion of whipping process, be cooled to room temperature, purpose
Product.
Comparative example 2
82 parts of furfural aromatic hydrocarbons tapped oils are added in reaction kettle, add in 1.5 parts of hydrogen peroxide（Mass concentration is 90%）, heating
To 120 DEG C or so, agitator speed is 500 revs/min, when stirring 2 is small, obtains modified carbolineum.15 parts of SBS are continuously added, and
140 DEG C are heated to, agitator speed is 4000 revs/min, and stirring 5 can obtain modifying agent mother liquor A6 when small.
60 parts of asphalt M1,20 parts of coal tar pitch N1 are heated to 140 DEG C or so, add in 14 parts of modifying agent mother liquor A6,
Agitator speed is 2500 revs/min, when stirring 2 is small.Can discharge after the completion of whipping process, be cooled to room temperature, purpose
Product.
Comparative example 3
60 parts of asphalt M1,20 parts of coal tar pitch N1 are heated to 140 DEG C or so, and add in 12 parts of carbolineum（With embodiment 1）、
0.2 part of hydrogen peroxide（Mass concentration is 90%）, 2 parts of SBS（With embodiment 1）, stirring, agitator speed is 2500 revs/min
Clock, when stirring 2 is small.Can discharge after the completion of whipping process, be cooled to room temperature, purpose product.
The property of road asphalt prepared by 1 embodiment of table
| Number | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | Embodiment 7 |
| 25 DEG C of needle penetrations, 1/10mm | 74 | 72 | 77 | 75 | 79 |
| Softening point, DEG C | 47.8 | 49.3 | 45.8 | 47.0 | 46.3 |
| 10 DEG C of ductilities, cm | 71 | 61 | 60 | 65 | 76 |
| Upper and lower softening point difference（163 DEG C, 48hr）, DEG C | 0.5 | 0.4 | 0.8 | 0.9 | 0.5 |
The property of road asphalt prepared by 2 comparative example of table
| Number | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| 25 DEG C of needle penetrations, 1/10mm | 94 | 89 | 82 |
| Softening point, DEG C | 42.2 | 41.3 | 44.4 |
| 10 DEG C of ductilities, cm | 13 | 20 | 17 |
| Upper and lower softening point difference（163 DEG C, 48hr）, DEG C | 2.9 | 2.3 | 2.9 |
Claims (12)
1. a kind of preparation method of modifying agent mother liquor, including：
（1）Carbolineum is added in reaction kettle, then adds in hydrogen peroxide, heat temperature raising, controlling reaction temperature is 90 ~ 150 DEG C, excellent
Elect 100 ~ 140 DEG C as, stirring obtains modified carbolineum；
（2）Continue to add in high molecular polymer into reaction kettle, control temperature of reaction kettle as 120 ~ 180 DEG C, be preferably 140 ~ 160
DEG C, stirring obtains modifying agent mother liquor.
2. according to the preparation method of claim 1, it is characterised in that：In parts by weight, raw material dosage is as follows：
80 ~ 94 parts of carbolineum is preferably 82 ~ 92 parts,
Hydrogen peroxidase 10 .4 ~ 4.0 part are preferably 0.8 ~ 3.6 part
4 ~ 20 parts of high molecular polymer is preferably 6 ~ 18 parts.
3. according to the preparation method of claim 1 or 2, it is characterised in that：The boiling range of the carbolineum is 320 ~ 420 DEG C, is preferably
340~400℃。
4. according to the preparation method of claim 1 or 2, it is characterised in that：The high molecular polymer be SBS or SBR, molecule
It measures as 10 ~ 200,000.
5. according to the preparation method of claim 1 or 2, it is characterised in that：The mass concentration of the hydrogen peroxide for 85% ~
95%。
6. according to the preparation method of claim 1 or 2, it is characterised in that：Step（1）The time of the stirring is small for 0.5 ~ 5.0
When, 200 ~ 2000 revs/min of mixing speed.
7. according to the preparation method of claim 1, it is characterised in that：Step（2）When the time of the stirring is 1 ~ 10 small, stirring
2000 ~ 6000 revs/min of speed.
8. a kind of preparation method of road asphalt, including：
Any modifying agent mother liquor of selected from coal tar pitch and petroleum asphalt and claim 1 ~ 7 is added in reaction kettle, in reaction temperature
For 100 ~ 180 DEG C, under the conditions of preferably 120 ~ 160 DEG C, stirring obtains road asphalt product.
9. according to the preparation method of claim 8, it is characterised in that：In parts by weight, raw material dosage is as follows：
5 ~ 40 parts of coal tar pitch,
50 ~ 70 parts of asphalt,
8 ~ 20 parts of modifying agent mother liquor.
10. according to the preparation method of claim 8 or 9, it is characterised in that：The coal tar pitch is less than 30wt% for asphalt content
Medium temperature coal pitch, 72 ~ 95 DEG C of softening point.
11. according to the preparation method of claim 8 or 9, it is characterised in that：The asphalt is less than for asphalt content
10wt%, 40 ~ 50 DEG C of softening point.
12. according to the preparation method of claim 8 or 9, it is characterised in that：Selected from coal tar pitch and petroleum asphalt and modifying agent mother liquor are mixed
When the time for closing stirring is 1 ~ 10 small, 500 ~ 4000 revs/min of mixing speed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610983349.0A CN108070265A (en) | 2016-11-09 | 2016-11-09 | A kind of preparation method of modifying agent mother liquor and road asphalt |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610983349.0A CN108070265A (en) | 2016-11-09 | 2016-11-09 | A kind of preparation method of modifying agent mother liquor and road asphalt |
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| CN108070265A true CN108070265A (en) | 2018-05-25 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101229915A (en) * | 2007-01-24 | 2008-07-30 | 中国石油大学(北京) | Method for producing hydrogen peroxide by anthraquinone process |
| CN101229513A (en) * | 2007-01-24 | 2008-07-30 | 中国石油大学(北京) | Supported palladium catalyst used for anthraquinone producing peroxid and preparing method thereof |
| CN101418130A (en) * | 2008-12-08 | 2009-04-29 | 桂希衡 | Weathering resistant asphalt modifier and application technology thereof |
| CN102653631A (en) * | 2012-04-16 | 2012-09-05 | 交通运输部公路科学研究所 | Mixed asphalt for pavements and preparation method for mixed asphalt |
| CN102924935A (en) * | 2012-11-07 | 2013-02-13 | 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 |
| US20150329721A1 (en) * | 2014-05-13 | 2015-11-19 | Robert E. Frank | Asphalt Binder Blend and Method of Rejuvenating and Softening Asphalt Cement with Brown Grease |
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2016
- 2016-11-09 CN CN201610983349.0A patent/CN108070265A/en active Pending
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|---|---|---|---|---|
| CN101229915A (en) * | 2007-01-24 | 2008-07-30 | 中国石油大学(北京) | Method for producing hydrogen peroxide by anthraquinone process |
| CN101229513A (en) * | 2007-01-24 | 2008-07-30 | 中国石油大学(北京) | Supported palladium catalyst used for anthraquinone producing peroxid and preparing method thereof |
| CN101418130A (en) * | 2008-12-08 | 2009-04-29 | 桂希衡 | Weathering resistant asphalt modifier and application technology thereof |
| CN102653631A (en) * | 2012-04-16 | 2012-09-05 | 交通运输部公路科学研究所 | Mixed asphalt for pavements and preparation method for mixed asphalt |
| CN102924935A (en) * | 2012-11-07 | 2013-02-13 | 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 |
| US20150329721A1 (en) * | 2014-05-13 | 2015-11-19 | Robert E. Frank | Asphalt Binder Blend and Method of Rejuvenating and Softening Asphalt Cement with Brown Grease |
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Application publication date: 20180525 |