CN103044932A - Method for preparing modified asphalt by using raw material with low asphaltene content - Google Patents
Method for preparing modified asphalt by using raw material with low asphaltene content Download PDFInfo
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- CN103044932A CN103044932A CN2011103145615A CN201110314561A CN103044932A CN 103044932 A CN103044932 A CN 103044932A CN 2011103145615 A CN2011103145615 A CN 2011103145615A CN 201110314561 A CN201110314561 A CN 201110314561A CN 103044932 A CN103044932 A CN 103044932A
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- Prior art keywords
- asphalt
- acid
- raw material
- preparation
- modifying
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Links
- 239000010426 asphalt Substances 0.000 title claims abstract description 284
- 238000000034 method Methods 0.000 title claims abstract description 32
- 239000002994 raw material Substances 0.000 title claims abstract description 28
- 239000000203 mixture Substances 0.000 claims abstract description 80
- 229920000642 polymer Polymers 0.000 claims abstract description 55
- 238000006243 chemical reaction Methods 0.000 claims abstract description 32
- 238000009835 boiling Methods 0.000 claims abstract description 11
- 230000008569 process Effects 0.000 claims abstract description 11
- 239000003607 modifier Substances 0.000 claims abstract description 10
- 239000000084 colloidal system Substances 0.000 claims abstract description 8
- 238000010008 shearing Methods 0.000 claims abstract description 5
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 claims description 65
- 239000003921 oil Substances 0.000 claims description 45
- 239000003381 stabilizer Substances 0.000 claims description 43
- -1 polyol ester Chemical class 0.000 claims description 35
- 238000002360 preparation method Methods 0.000 claims description 33
- 238000010792 warming Methods 0.000 claims description 26
- 239000000126 substance Substances 0.000 claims description 23
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 22
- 239000003795 chemical substances by application Substances 0.000 claims description 20
- 239000005864 Sulphur Substances 0.000 claims description 18
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 14
- 239000006185 dispersion Substances 0.000 claims description 12
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 12
- 238000004132 cross linking Methods 0.000 claims description 11
- 229940059574 pentaerithrityl Drugs 0.000 claims description 11
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 11
- 239000002253 acid Substances 0.000 claims description 10
- 238000005336 cracking Methods 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- 235000021355 Stearic acid Nutrition 0.000 claims description 9
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 9
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 9
- 239000008117 stearic acid Substances 0.000 claims description 9
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 claims description 8
- 239000004342 Benzoyl peroxide Substances 0.000 claims description 8
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical group C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 8
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 claims description 8
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 8
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 8
- 239000000284 extract Substances 0.000 claims description 8
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims description 7
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims description 7
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims description 7
- 239000005642 Oleic acid Substances 0.000 claims description 7
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims description 7
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 7
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims description 7
- 241000722946 Acanthocybium solandri Species 0.000 claims description 6
- ZQMIGQNCOMNODD-UHFFFAOYSA-N diacetyl peroxide Chemical compound CC(=O)OOC(C)=O ZQMIGQNCOMNODD-UHFFFAOYSA-N 0.000 claims description 6
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 claims description 6
- 229920000137 polyphosphoric acid Polymers 0.000 claims description 6
- 239000011734 sodium Substances 0.000 claims description 6
- 229910052708 sodium Inorganic materials 0.000 claims description 6
- TXQVDVNAKHFQPP-UHFFFAOYSA-N [3-hydroxy-2,2-bis(hydroxymethyl)propyl] octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(CO)(CO)CO TXQVDVNAKHFQPP-UHFFFAOYSA-N 0.000 claims description 5
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 5
- 229910044991 metal oxide Inorganic materials 0.000 claims description 5
- 150000004706 metal oxides Chemical class 0.000 claims description 5
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerol Natural products OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 4
- OUUQCZGPVNCOIJ-UHFFFAOYSA-M Superoxide Chemical compound [O-][O] OUUQCZGPVNCOIJ-UHFFFAOYSA-M 0.000 claims description 4
- 150000001335 aliphatic alkanes Chemical class 0.000 claims description 4
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000292 calcium oxide Substances 0.000 claims description 4
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 4
- 238000004821 distillation Methods 0.000 claims description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 4
- 235000011187 glycerol Nutrition 0.000 claims description 4
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000395 magnesium oxide Substances 0.000 claims description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 4
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 4
- FBUKVWPVBMHYJY-UHFFFAOYSA-M nonanoate Chemical compound CCCCCCCCC([O-])=O FBUKVWPVBMHYJY-UHFFFAOYSA-M 0.000 claims description 4
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 4
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical group O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 4
- 229920002961 polybutylene succinate Polymers 0.000 claims description 4
- 239000004631 polybutylene succinate Substances 0.000 claims description 4
- 229920005862 polyol Polymers 0.000 claims description 4
- 239000001294 propane Substances 0.000 claims description 4
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000011787 zinc oxide Substances 0.000 claims description 4
- MFEVGQHCNVXMER-UHFFFAOYSA-L 1,3,2$l^{2}-dioxaplumbetan-4-one Chemical compound [Pb+2].[O-]C([O-])=O MFEVGQHCNVXMER-UHFFFAOYSA-L 0.000 claims description 3
- GZBSIABKXVPBFY-UHFFFAOYSA-N 2,2-bis(hydroxymethyl)propane-1,3-diol;prop-2-enoic acid Chemical compound OC(=O)C=C.OC(=O)C=C.OC(=O)C=C.OC(=O)C=C.OCC(CO)(CO)CO GZBSIABKXVPBFY-UHFFFAOYSA-N 0.000 claims description 3
- HNNQYHFROJDYHQ-UHFFFAOYSA-N 3-(4-ethylcyclohexyl)propanoic acid 3-(3-ethylcyclopentyl)propanoic acid Chemical compound CCC1CCC(CCC(O)=O)C1.CCC1CCC(CCC(O)=O)CC1 HNNQYHFROJDYHQ-UHFFFAOYSA-N 0.000 claims description 3
- DBCAQXHNJOFNGC-UHFFFAOYSA-N 4-bromo-1,1,1-trifluorobutane Chemical compound FC(F)(F)CCCBr DBCAQXHNJOFNGC-UHFFFAOYSA-N 0.000 claims description 3
- 239000005639 Lauric acid Substances 0.000 claims description 3
- 229910000004 White lead Inorganic materials 0.000 claims description 3
- FMRLDPWIRHBCCC-UHFFFAOYSA-L Zinc carbonate Chemical compound [Zn+2].[O-]C([O-])=O FMRLDPWIRHBCCC-UHFFFAOYSA-L 0.000 claims description 3
- AMZKGJLFYCZDMJ-WRBBJXAJSA-N [2,2-dimethyl-3-[(z)-octadec-9-enoyl]oxypropyl] (z)-octadec-9-enoate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCC(C)(C)COC(=O)CCCCCCC\C=C/CCCCCCCC AMZKGJLFYCZDMJ-WRBBJXAJSA-N 0.000 claims description 3
- HVVWZTWDBSEWIH-UHFFFAOYSA-N [2-(hydroxymethyl)-3-prop-2-enoyloxy-2-(prop-2-enoyloxymethyl)propyl] prop-2-enoate Chemical compound C=CC(=O)OCC(CO)(COC(=O)C=C)COC(=O)C=C HVVWZTWDBSEWIH-UHFFFAOYSA-N 0.000 claims description 3
- SGQLUUBYYBASTD-UHFFFAOYSA-N azanium butoxy-butylsulfanyl-oxido-sulfanylidene-lambda5-phosphane Chemical compound [NH4+].CCCCOP([O-])(=S)SCCCC SGQLUUBYYBASTD-UHFFFAOYSA-N 0.000 claims description 3
- UPIWXMRIPODGLE-UHFFFAOYSA-N butyl benzenecarboperoxoate Chemical group CCCCOOC(=O)C1=CC=CC=C1 UPIWXMRIPODGLE-UHFFFAOYSA-N 0.000 claims description 3
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 3
- 239000000920 calcium hydroxide Substances 0.000 claims description 3
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 3
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 claims description 3
- STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Substances CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 claims description 3
- 229910000464 lead oxide Inorganic materials 0.000 claims description 3
- XMFOQHDPRMAJNU-UHFFFAOYSA-N lead(ii,iv) oxide Chemical compound O1[Pb]O[Pb]11O[Pb]O1 XMFOQHDPRMAJNU-UHFFFAOYSA-N 0.000 claims description 3
- 239000001095 magnesium carbonate Substances 0.000 claims description 3
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims description 3
- 229960001708 magnesium carbonate Drugs 0.000 claims description 3
- 235000014380 magnesium carbonate Nutrition 0.000 claims description 3
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims description 3
- DEQZTKGFXNUBJL-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)cyclohexanamine Chemical compound C1CCCCC1NSC1=NC2=CC=CC=C2S1 DEQZTKGFXNUBJL-UHFFFAOYSA-N 0.000 claims description 3
- 125000005609 naphthenate group Chemical group 0.000 claims description 3
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 claims description 3
- VLTOSDJJTWPWLS-UHFFFAOYSA-N pent-2-ynal Chemical compound CCC#CC=O VLTOSDJJTWPWLS-UHFFFAOYSA-N 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 239000011593 sulfur Substances 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- CWERGRDVMFNCDR-UHFFFAOYSA-N thioglycolic acid Chemical class OC(=O)CS CWERGRDVMFNCDR-UHFFFAOYSA-N 0.000 claims description 3
- 239000011667 zinc carbonate Substances 0.000 claims description 3
- 235000004416 zinc carbonate Nutrition 0.000 claims description 3
- 229910000010 zinc carbonate Inorganic materials 0.000 claims description 3
- 239000002174 Styrene-butadiene Substances 0.000 claims description 2
- 229920001400 block copolymer Polymers 0.000 claims description 2
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 2
- 230000035515 penetration Effects 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- 238000000638 solvent extraction Methods 0.000 claims description 2
- 239000011115 styrene butadiene Substances 0.000 claims description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 2
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- 239000010779 crude oil Substances 0.000 claims 1
- 238000005292 vacuum distillation Methods 0.000 claims 1
- 238000002156 mixing Methods 0.000 abstract description 48
- 238000004519 manufacturing process Methods 0.000 abstract description 12
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- 230000032683 aging Effects 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000004227 thermal cracking Methods 0.000 abstract 1
- FACXGONDLDSNOE-UHFFFAOYSA-N buta-1,3-diene;styrene Chemical compound C=CC=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 FACXGONDLDSNOE-UHFFFAOYSA-N 0.000 description 64
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Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a method for preparing modified asphalt by using a raw material with low asphaltene content; vacuum residue with asphaltene content less than 5%, deoiled asphalt or a mixture undergoes a thermal cracking reaction at the temperature of 350-450 ℃, and is distilled and cut to obtain a tower bottom residue high-asphaltene content component with the normal-pressure boiling point of more than 350 ℃; mixing the components with high asphaltene content and the compatilizer at the temperature of 140-190 ℃, adding the polymer modifier, and shearing for 5-120min at the temperature of 160-200 ℃ by using a high-speed shearing machine or a colloid mill to physically disperse the polymer into the asphalt; heating to the reaction temperature of 160-; the polymer modified asphalt obtained by the method has the characteristics of high-temperature storage stability, excellent high-low temperature performance and good aging resistance, and has simple process flow and high production efficiency.
Description
Technical field
The raw material that the present invention relates to the low asphalt content of a kind of usefulness prepares the method for modifying asphalt, particularly prepares the method for styrene-butadiene-styrene (SBS) modifying asphalt.
Background technology
Compare with cement concrete pavement, bituminous pavement have surfacing, without seam, the driving comfortable, wear-resisting, the advantages such as vibration is little, noise is low, the construction time is short, simple maintenance, thereby the acquisition more and more widely the application.Along with the develop rapidly of economy, the highway mileage of China will increase year by year, take in Xinjiang as example, highway mileage will double during following " 12 ", simultaneously, along with the increase of traffic flow, the maximization of vehicle, also more and more higher to the specification of quality of bituminous pavement.Plain asphalt is the stronger material of a kind of temperature sensibility, in the time of near temperature is reduced to brittle point, pitch is vitreous state, lose flexibility, embrittlement very easily occurs in compound, causes the road surface crack to occur, when running into the rainy day again, rainwater causes pitch and sandstone to come off and causes Moisture Damage from crack infiltration compound, causes the road surface groove to occur cheating; Then become viscous state in the time of near temperature rises to softening temperature, lose visco-elasticity, this moment, the stiffness of pitch was very little, and compound is yielding under external force, caused the road surface that rut occurs or gathered around the harm such as bag.Therefore, it is large that plain asphalt has been difficult to satisfy the special bus flow, and the speed of a motor vehicle is fast, the requirement of the extreme weathers such as load is heavy and high and cold, high temperature.Modifying asphalt is as the road surface novel material, pitch is all improved at aspects such as temperature sensibility, stability, weather resistance, adhesivity, resistance to deteriorations comprehensively, can improve the comprehensive use properties in road surface, especially SBS modifying asphalt, can satisfy simultaneously the high temperature performance requirement, have again the advantages such as suitability is wide, become the main force in the modified bitumen product.
But, because polymkeric substance and pitch are in many difference of the aspects such as molecular weight, density, polarity, solubility parameter and other physics, chemical property, cause the consistency between polymkeric substance and the pitch very poor, thereby polymkeric substance is very easily separated from modifying asphalt, do not reach the purpose of polymer modified asphalt, the most polymers modifying asphalt can only be produced at the scene.Although need not consider the problem of polymkeric substance segregation when taking situ production, job mix, but site production of modified asphalt one is having relatively high expectations to equipment, investment is large, the 2nd, only be simple physical mixed between polymkeric substance and pitch, the performance of modifying asphalt does not often reach the requirement of standard, pavement life is shorter, therefore how to realize the batch production production of modifying asphalt and guarantees that the high-temperature storage stability of modifying asphalt becomes the focus of in recent years polymer modified asphalt research.
For this problem, people have done a large amount of research work, mainly around following four aspects:
(1) preparation technology.The complexity that the choosing of technique determining preparation process and the investment of equipment also directly have influence on the quality of product.One of preparation technology commonly used is the mother liquor method at present, it is the SBS modifying asphalt masterbatch that SBS and rich aromatic solvent is mixed and made into high density, again masterbatch and matrix pitch are mixed with modifying asphalt, CN1339557 for example, CN1138869, CN1415663, CN1228456, CN1733832, the preparation method that CN1775910, USP4567222 all provide mother material to prepare modifying asphalt is to reach the purpose that improves stability, but when preparation SBS modifying asphalt masterbatch, significantly rise because the SBS swelling causes material viscosity, cause stirring difficulty, and because the SBS swelling time is longer, be easy to cause the aging caking of SBS, in addition, when preparation modifying asphalt masterbatch, need cooling to process, with need again heat temperature raising in the pitch mixing process, also must add a certain amount of stablizer simultaneously, carry out long-time crosslinking reaction, reach the purpose of the modifying asphalt of preparation shelf-stable, therefore, this technique exists the production cycle long, the defective that production cost and energy consumption are high.The 2nd, high speed shear or colloidal mill technique, it is directly to be distributed in the pitch after SBS is ground by high-speed shearing machine or colloidal mill, this technique has advantage with short production cycle, that production efficiency is high, and can realize serialization production, but the modified bitumen product that this explained hereafter goes out is easily emanated, package stability is poor, and the product physical and chemical index is unstable.
(2) polymer modifiers.Owing to exist in density between polymer modifiers and pitch, polarity, the difference such as solubility parameter, cause the consistency between itself and pitch very poor, one of means commonly used are that polymkeric substance is carried out chemical modification in advance, to improve consistency and the compatibleness of itself and pitch, such as CN1775822, CN1365986A, USP5278207, USP4868245 introduces multifarious functional group by vinylbenzene-diolefinic polymer being carried out the activity processing, these different functional groups are grafted on the polymkeric substance, increase polarity and the reactivity of polymkeric substance, can improve the consistency of polymkeric substance and pitch, the polymkeric substance after the modification and pitch blend can obtain excellent property and the good modifying asphalt of package stability.The problem that this technique exists is to use in factory the special-purpose vinylbenzene-diolefinic polymer through chemical structure modification, in case change the vinylbenzene-diolefinic polymer of non-modification into, then the performance of product and package stability just differ and are guaranteed surely, it is used do not have popularity.The 2nd, composite modified, it is to be undertaken composite by the polymkeric substance of selecting different compositions or structure, utilize the complementary action between their performances to prepare the polymer-asphalt comosition that has good stability, form or polymkeric substance that structure the is different performance after on asphalt modification has different impacts, CN1417262 is by carrying out elastomerics base polymer and polyethylene wax or Racemic glycidol ester compound composite modified, the modifying asphalt isolation test softening point difference of preparation≤2.5 ℃, can not occur separating of polymkeric substance and pitch in storage process, but some indexs of modifying asphalt are unsatisfactory, show that low-temperature performance is relatively poor.CN1952011 discloses a kind of composite modified asphalt and preparation method, it is that SBS and Poly Propylene Wax, FT paraffin is composite modified, purpose is to improve the high-temperature behavior of modifying asphalt, reduce simultaneously the difficulty of construction of modifying asphalt, but a large amount of paraffin add the low-temperature performance that affiliation affects modifying asphalt greatly.CN1844251 polymer-modified asphalt compositions and preparation method thereof, vinylbenzene-conjugated diolefin polymer and the composite modified preparation modifying asphalt of SBS by the active anionic polymerization polar, it is good to obtain package stability, the modifying asphalt that low-temperature performance is good, but exist production cost to increase the shortcoming of preparation process complexity.
(3) matrix pitch.Great mass of data studies show that, the composition of matrix pitch determines the consistency of itself and properties-correcting agent SBS, relation about pitch composition and SBS consistency, mainly contain at present three kinds of sayings: the first saying is thought, the component ratio of pitch was at saturated minute 8%-12%, fragrance minute with resin 85%-89%, during bituminous matter 1%-5% scope and the SBS consistency better; The second saying thinks that pitch itself can be regarded as take bituminous matter as disperse phase, the colloidal solution of colloid as peptizing agent, oil content (saturated minute+fragrance minute) as dispersion medium, its stability can be used Gastel index IC value representation, wherein IC=(saturated minute+bituminous matter)/(fragrance divides+colloid), should be not more than 0.25 as the matrix pitch IC value of modifying asphalt; The third saying is thought, what the SBS modified effect was played a major role is that the fragrance of matrix pitch divides and asphalt content, the fragrance of matrix pitch divides swelling, the dispersion of the high SBS of being conducive in pitch, fragrance minute content should be more than 30%, and the asphalt content of matrix pitch should be in a rational scope, the too high compatibleness of SBS and matrix pitch that causes easily of asphalt content is bad, the softening temperature of the too low then modifying asphalt of bitum content is on the low side, its content is in the 5%-10% scope, and modified effect is desirable.
Therefore, for polymer modified asphalt, the performance that the choosing of matrix pitch determining modifying asphalt is good and bad, not all pitch all is suitable for polymer modification, as for domestic cycloalkyl heavy oil asphalt, that fragrance minute content or asphalt content are all much lower than external Imported Asphalt, judge according to component ratio and Gastel index, because the consistency between itself and SBS is relatively poor, be difficult to prepare qualified modifying asphalt, for this problem, CN1570027 is by with industrial phosphoric acid and oil acid as catalyst, pitch is carried out oxidizing reaction obtain matrix pitch, improved the composition structure of pitch, thereby improved the consistency of pitch and properties-correcting agent, solved the segregation problem, but the adding of a large amount of acid causes corrosion to equipment easily.CN1537921 provides a kind of and has prepared the method for modifying asphalt with high aromatic oil, has improved the consistency of pitch and properties-correcting agent, but needs to add a large amount of high aromatic oils, and cost is higher.
(4) type of stablizer.
As everyone knows, prepare high temperature storage stable, the satisfactory polymer modified asphalt of performance, no matter be to adopt which kind of technique, use which kind of properties-correcting agent or matrix pitch, all need to add stablizer in the modifying asphalt system, choosing of stablizer also is the key of preparation modifying asphalt.At present, use more auxiliary agent type can be summarized as four classes.The firstth, sulphur and compounds thereof mainly are the organic sulfides such as elemental sulfur and thiazole, thiuram; Equations of The Second Kind is acid, mainly is inorganic acids, such as sulfuric acid, phosphoric acid etc.; The 3rd class is peroxide, and benzoyl peroxide (BPO) and dicumyl peroxide (DCP) etc. are typically arranged, and the 4th class is metal oxide, and calcium oxide, magnesium oxide, aluminum oxide and zinc oxide etc. are typically arranged.
Using more in this four classes stablizer is sulphur and compound thereof, it is cheap and easy to get that it has raw material, rate of crosslinking is fast, the advantages such as applied range, but the add-on of sulphur and adding speed are very large on the impact of reaction result, and disposable adding sulphur is too fast or too much, can make asphalt-polymer occur excessively crosslinked and are condensed into colloid, cause flow difficulties, can't continue to produce.Excessively crosslinked for fear of occurring, make linking agent with sulphur among the WO984537, take the mode that repeatedly adds slowly, cause processing step loaded down with trivial details, therefore course of processing length consuming time, be restricted treatment capacity.CN101068883A is by carrying out pre-treatment with mineral acid to pitch first, then add sulphur and/or other linking agent or promotor and produce and a kind ofly have the polymer modified asphalt that improves high temperature properties, but the package stability of modifying asphalt is not fine.For solving the bad problem of polymer modified asphalt package stability, and used sulphur-containing stabilizer exists crosslinked inhomogeneous, the easy gelation problems of sulfuration, it is a kind of mainly by the vulcanization crosslinking agent that CN1408750 provides, crosslinking accelerator, the composite stabiliser composition that forms such as dispersion agent, this stabiliser composition is under a kind of parcel of fatty acid amide dispersion agent, can make linking agent evenly spread to rapid reaction in polymkeric substance/bitumen dispersions system, avoided the formation of gel, and can make polymer modified asphalt have better stability in storage, but the method will prepare stabiliser composition, complex technical process in advance.
To sum up, the factor that affects the polymer modified asphalt performance mainly contains the type of preparation technology, properties-correcting agent type, matrix pitch and the type of stablizer, and above Patents all is effects of having considered a certain factor, and has ignored the impact of composite factor.In the middle of these influence factors, it is particularly important that the type of matrix pitch and stablizer seems again.Wherein, the matrix pitch that raises in the Patents mostly is to be selected from high aromatic hydrocarbons and the moderate Imported Asphalt of asphalt content, as mentioning used asphalt component scope in CN101205411 modified asphalt composite and preparation method thereof, stable hydrocarbon 5-25%, aromatic hydrocarbon 30-60%, colloid 20-40%, bituminous matter 5-15%, also mentioned the compositional range of pitch among the CN1417262, stable hydrocarbon 5-25%, aromatic hydrocarbon 30-60%, colloid 20-40%, bituminous matter 0.05-15% has rational collocation between the component of these pitches, suitable polymer modification.Fragrance divides and the pitch of low asphalt content but for hanging down, consistency between pitch and polymkeric substance is poor on the one hand, the active ingredient that contains in the pitch on the other hand is few, cause the package stability of the consistency of itself and polymkeric substance and modifying asphalt all very poor, solve the polymer modification problem of this class pitch, will consider the effect of various factors, at first need to adopt new processing method, make the component of matrix pitch that suitable change at first occur, make rational ratio is arranged between four components, then select suitable stablizer, finally obtain the polymer modified asphalt of excellent performance.
Summary of the invention
The purpose of this invention is to provide and be used for the method that modifying asphalt prepares after a kind of raw material by low asphalt content improves aromatic hydrocarbon and asphalt content by upgrading, thereby improve the consistency of itself and polymkeric substance, obtain a kind of shelf-stable, modifying asphalt that high temperature performance is good.
For achieving the above object, the invention provides following technical scheme:
The raw material of low asphalt content involved in the present invention is used for the preparation method of modifying asphalt, and wherein each component is by modifying asphalt gross weight 100%:
High asphalt content component: 72-96.9%
Polymer modifiers: 2-6%
Compatilizer: 1-20%
Stabiliser composition: 0.1-2.0%
The preparation method that the raw material of low asphalt content provided by the invention is used for modifying asphalt is:
(1) take aromatic hydrocarbon content less than 30%, asphalt content is higher than 350 ℃ residual oil or de-oiled asphalt or both mixtures as raw material less than 5% atmospheric boiling point, namely hang down the asphalt content raw material, be heated to 350 ℃～450 ℃ through process furnace, enter the thermally splitting separation column, under 350 ℃～450 ℃ temperature, in tower, stop 20～120min, heat cracking reaction occurs, thermally splitting generate oil again through the distillation cutting obtain atmospheric boiling point greater than 350 ℃ tower at the bottom of residue, as the high asphalt content component that modifying asphalt is used, its asphalt content is 5%～25%;
(2) high asphalt content component is mixed at 140-190 ℃ in proportion with compatilizer, add polymer modifiers, shear 5-120min with high-speed shearing machine or colloidal mill at 150-200 ℃, polymer physics is distributed in the pitch;
(3) be warming up to temperature of reaction 160-230 ℃, order adds stabiliser composition successively in no particular order, and stirring reaction 30-360min makes polymkeric substance and pitch generation chemical reaction, the preparation modifying asphalt.
Above-mentioned high asphalt content component is to be higher than a kind of or both mixtures in 350 ℃ the vacuum residuum, de-oiled asphalt by redistillation cutting gained behind the heat cracking reaction by atmospheric boiling point, the atmospheric boiling point of high asphalt content component is greater than 350 ℃, penetration degree 30-90 (0.1mm), softening temperature 45-70 ℃, the asphalt content 5%～25% in four components.
Aromatic hydrocarbon content is less than 30% in described vacuum residuum or de-oiled asphalt four components, and asphalt content is less than 5%.
Above-mentioned polymer modifiers is thermoplastic elastomer polymer, is the styrene butadiene based block copolymer, is specially adapted to styrene-butadiene-styrene three blocks (SBS) multipolymer.
Above-mentioned compatilizer is selected from refinery and extracts oil, catalytically cracked oil out and extract oil, wax tailings out and extract one or more the mixture that oil, the frivolous oil of solvent deasphalting gained are extracted oil out out with four lines that subtract that solvent extraction process obtains, its aromaticity content is greater than 45%, and flash-point is greater than 235 ℃.
Aforementioned stable agent composition is comprised of dispersion stabilizer, crosslinking reaction agent, by stabiliser composition gross weight 100%:
Dispersion stabilizer: 10-90%
Crosslinking reaction agent: 10-90%
Above-mentioned dispersion stabilizer is comprised of acid and polyol ester.
Described acid is selected from stearic acid, and phenylformic acid, molecular weight are the naphthenic acid of 122-500, oleic acid, lauric acid, Zinic stearas, phosphoric acid, polyphosphoric acid (H
6P
4O
13), tetra-sodium (molecular formula H
4P
2O
7) in one or more mixture; Described polyol ester is selected from single oleic acid sorbitan ester, the naphthenic acid glycol ester (NAEP) of acid number≤1.0mgKOH/g, pentaerythrito naphthenate (molecular formula [C
6H
5(CH
2)
mCOOCH
2]
n-C (CH
2OH)
4-nM:0～27 wherein, n:1～4), pentaerythritol stearate (PETS), the poly butylene succinate of molecular weight 〉=362, four isocaprylic acid pentaerythritol esters, the tetramethylolmethane benzoic ether, the different pelargonate of tetramethylolmethane, pentaerythritol tetraoctyl stearate, tetramethylolmethane four mercaptoacetates, tetramethylol methane tetraacrylate, softening temperature (ring and ball method) is 100-108 ℃ pentalyn, PETO (PETO), neopentyl glycol dioleate, the sour glycerine ester of single 18 (alkane), Ethylene glycol dimethacrylate, triglycol two 2-ethylhexoates, the mixture of one or more in the pentaerythritol triacrylate.
Above-mentioned crosslinking reaction agent is selected from sulphur and compound thereof, superoxide, one or more mixtures in the metal oxide.Described sulphur and compound thereof are selected from elemental sulfur, are powder-sulphurs, insoluble sulfur or colloid sulphur, curing-N, N '-dicaprolactam, dicyclohexyl tetrathio diazine, ammonium dibutyldithiophosphate, one or more mixtures in the N cyclohexyl 2 benzothiazole sulfenamide; Described superoxide is selected from benzoyl peroxide (BPO), dicumyl peroxide (DCP), diacetyl peroxide, two-2,4-dichlorobenzoperoxide (DCBPO), ditertiary butyl peroxide (TBP), tertiary butyl benzoyl peroxide, one or more mixtures of tert butyl isopropyl benzene peroxide; Described metal oxide is selected from aluminum oxide, calcium oxide, calcium hydroxide, magnesium oxide, magnesiumcarbonate, zinc oxide, zinc carbonate, yellow lead oxide, tri-lead tetroxide, one or more mixtures in the white lead carbonate.
The present invention carries out the thermally splitting upgrading by the raw material to low asphalt content, so that special variation has occured in the Nomenclature Composition and Structure of Complexes of pitch, so that each component ratio of pitch is more rational, increased aromatic hydrocarbon and asphalt content in the pitch, improved the consistency of polymkeric substance and pitch; By adding stabiliser composition, solved the segregation problem of polymer modified asphalt product, have high temperature storage stable, high temperature performance is good and ageing-resistant performance is good characteristics by the resulting modifying asphalt of the method, product property can satisfy polymer modified asphalt technical requirements among " asphalt highway technology job specifications " JTGF40-2004, and technical process is simple, production efficiency is high, is particularly suitable for the production of batch production modifying asphalt.
Embodiment
The present invention is further described below in conjunction with embodiment, but therefore do not limit content of the present invention.
The residual oil that uses among the embodiment, de-oiled asphalt and compatilizer are selected from the refined oil product that produces as Raw material processing with naphthenic base crude.
Table 1 high asphalt content component preparation condition and character
High asphalt content component described in the embodiment is less than 30% by aromatic hydrocarbon content, asphalt content is higher than 350 ℃ vacuum residuum less than 5% atmospheric boiling point, the mixture of a kind of or both arbitrary proportions in the de-oiled asphalt, namely hang down the asphalt content raw material, by being heated to 350 ℃～450 ℃, enter the thermally splitting separation column, under 350 ℃～450 ℃ temperature, in tower, stop 20～120min, heat cracking reaction occurs, thermally splitting generate oil again through the distillation cutting obtain atmospheric boiling point greater than 350 ℃ tower at the bottom of residue, be viscosity breaking technology-distillation cutting gained, the high asphalt content constitutive property of gained index sees Table 1.
Embodiment 1
The high asphalt content component-1 of adding 92% in the container of whipping appts, 2.5% catalytically cracked oil, both mix at 140 ℃, add 4%SBS (Yueyang petrochemical iy produced YH-791 type), in the time of 170 ℃, disperse 20min with rotating speed 4500r/min high speed shear, be warming up to and add 1.5% stabiliser composition after 190 ℃, wherein stearic acid 0.5%, naphthenic acid glycol ester (NAEP) 0.5%, sulphur 0.5%, obtain modifying asphalt (the Properties of Modified Asphalt analytical results sees Table 2) after mixing 60min, gained SBS modifying asphalt index satisfies the technical requirements of I-C polymer modified asphalt among " asphalt highway technology job specifications " JTG F40-2004.
Embodiment 2
The high asphalt content component-2 of adding 89.2% in the container of whipping appts, 5% wax tailings, after mixing, both mix at 150 ℃, add 5%SBS (Yueyang petrochemical iy produced YH-791 type), in the time of 180 ℃, disperse 30min with rotating speed 4500r/min high speed shear, be warming up to and add 0.8% stabiliser composition after 180 ℃, wherein phosphoric acid 0.16%, and (molecular formula is [C to pentaerythrito naphthenate
6H
5(CH
2)
10COOCH
2]
2-C (CH
2OH)
2) 0.32%, powder-sulphur 0.32%, obtain modifying asphalt (the Properties of Modified Asphalt analytical results sees Table 2) after mixing 90min, gained SBS modifying asphalt index satisfies the technical requirements of I-C polymer modified asphalt among " asphalt highway technology job specifications " JTG F40-2004.
Embodiment 3
The high asphalt content component-3 of adding 89.4% in the container of whipping appts, subtract four lines and extract oil 6% out, after mixing, both mix at 170 ℃, add 4.5%SBS (Yueyang petrochemical iy produced YH-791 type), in the time of 190 ℃, disperse 40min with rotating speed 4500r/min high speed shear, be warming up to and add 0.1% stabiliser composition after 185 ℃, wherein tetra-sodium 0.02%, single oleic acid sorbitan ester 0.05%, insoluble sulfur 0.03%, obtain modifying asphalt (the Properties of Modified Asphalt analytical results sees Table 2) after mixing 30min, gained SBS modifying asphalt index satisfies the technical requirements of I-C polymer modified asphalt among " asphalt highway technology job specifications " JTG F40-2004.
Embodiment 4
The high asphalt content component-4 of adding 85% in the container of whipping appts, 8% catalytically cracked oil, after mixing, both mix at 160 ℃, add 6%SBS (Yueyang petrochemical iy produced YH-791 type), in the time of 180 ℃, disperse 60min with rotating speed 4500r/min high speed shear, add 1.0% stabiliser composition after being warming up to 200 ℃, naphthenic acid (molecular weight is 262) 0.2% wherein, pentaerythritol stearate 0.4%, zinc carbonate 0.4%, obtain modifying asphalt (the Properties of Modified Asphalt analytical results sees Table 2) after mixing 60min, gained SBS modifying asphalt index satisfies the technical requirements of I-C polymer modified asphalt among " asphalt highway technology job specifications " JTG F40-2004.
Embodiment 5
The high asphalt content component-5 of adding 85.8% in the container of whipping appts, 2% wax tailings, 6% four lines that subtract are extracted oil out, after mixing, the three stirs at 180 ℃, add 5%SBS (Yueyang petrochemical iy produced YH-791 type), in the time of 180 ℃, disperse 90min with rotating speed 4500r/min high speed shear, add 1.2% stabiliser composition after being warming up to 190 ℃, wherein phenylformic acid 0.3%, poly butylene succinate 0.5%, curing-N, N '-dicaprolactam 0.4%, obtain modifying asphalt (the Properties of Modified Asphalt analytical results sees Table 2) after mixing 40min, gained SBS modifying asphalt index satisfies the technical requirements of I-C polymer modified asphalt among " asphalt highway technology job specifications " JTG F40-2004.
Embodiment 6
The high asphalt content component-6 of adding 87.5% in the container of whipping appts, 6% wax tailings, 2% four lines that subtract are extracted oil out, after mixing, the three stirs at 170 ℃, add 4%SBS (Yueyang petrochemical iy produced YH-791 type), high speed shear is disperseed 30min (rotating speed: 4500r/min) in the time of 180 ℃, add 0.5% stabiliser composition after being warming up to 170 ℃, wherein polyphosphoric acid 0.05%, four isocaprylic acid pentaerythritol esters 0.25%, zinc oxide 0.2%, obtain modifying asphalt (the Properties of Modified Asphalt analytical results sees Table 2) after mixing 120min, gained SBS modifying asphalt index satisfies the technical requirements of I-C polymer modified asphalt among " asphalt highway technology job specifications " JTG F40-2004.
Embodiment 7
In with the container of whipping appts, add 85% high asphalt content component-7,3% catalytically cracked oil, 5% four lines that subtract are extracted oil out, after mixing, the three stirs at 190 ℃, add 5%SBS (Yueyang petrochemical iy produced YH-791 type), high speed shear is disperseed 40min (rotating speed: 4500r/min) in the time of 180 ℃, add 2.0% stabiliser composition after being warming up to 160 ℃, wherein oleic acid 0.2%, phenylformic acid 0.3%, phenylformic acid pentaerythritol ester 0.8%, calcium hydroxide 0.4%, dicyclohexyl tetrathio diazine 0.3% obtains modifying asphalt (the Properties of Modified Asphalt analytical results sees Table 2) behind the mixing 360min, and gained SBS modifying asphalt index satisfies the technical requirements of I-C polymer modified asphalt among " asphalt highway technology job specifications " JTG F40-2004.
Embodiment 8
The high asphalt content component-8 of adding 83.4% in the container of whipping appts, 5% wax tailings, 5% catalytically cracked oil, after mixing, the three stirs at 160 ℃, add 6%SBS (Yueyang petrochemical iy produced YH-791 type), high speed shear is disperseed 30min (rotating speed: 4500r/min) in the time of 180 ℃, add 0.6% stabiliser composition after being warming up to 185 ℃, tetra-sodium 0.15%g wherein, the different pelargonate 0.21% of tetramethylolmethane, benzoyl peroxide (BPO) 0.24%, obtain modifying asphalt (the Properties of Modified Asphalt analytical results sees Table 2) after mixing 60min, gained SBS modifying asphalt index satisfies the technical requirements of I-C polymer modified asphalt among " asphalt highway technology job specifications " JTG F40-2004.
Embodiment 9
The high asphalt content component-9 of adding 82% in the container of whipping appts, 3% wax tailings, 6% four lines that subtract are extracted oil out, 3% catalytically cracked oil, four mix at 160 ℃ after mixing, add 5.5%SBS (Yueyang petrochemical iy produced YH-791 type), high speed shear is disperseed 20min (rotating speed: 4500r/min) in the time of 180 ℃, add 0.5% stabiliser composition after being warming up to 180 ℃, wherein oleic acid 0.175%, pentaerythritol tetraoctyl stearate 0.125%, dicumyl peroxide (DCP) 0.2% obtains modifying asphalt (the Properties of Modified Asphalt analytical results sees Table 2) behind the mixing 60min
Embodiment 10
The high asphalt content component-10 of adding 81% in the container of whipping appts, 7.5% catalytically cracked oil, 7.5% four lines that subtract are extracted oil out, after mixing, the three mixes at 170 ℃, add 3.5%SBS (Yueyang petrochemical iy produced YH-791 type), high speed shear is disperseed 5min (rotating speed: 4500r/min) in the time of 180 ℃, add 0.5% stabiliser composition after being warming up to 190 ℃, wherein phosphoric acid 0.15%, neopentyl glycol dioleate 0.15%, aluminum oxide 0.2%, obtain modifying asphalt (the Properties of Modified Asphalt analytical results sees Table 2) after mixing 50min, gained SBS modifying asphalt index satisfies the technical requirements of I-C polymer modified asphalt among " asphalt highway technology job specifications " JTG F40-2004.
Embodiment 11
The high asphalt content component-11 of adding 80.5% in the container of whipping appts, 5% wax tailings, 10% catalytically cracked oil, after mixing, the three mixes at 160 ℃, add 4%SBS (Yueyang petrochemical iy produced YH-791 type), high speed shear is disperseed 20min (rotating speed: 4500r/min) in the time of 180 ℃, add 0.5% stabiliser composition after being warming up to 190 ℃, wherein lauric acid 0.1%, tetramethylolmethane four mercaptoacetates 0.25%, ammonium dibutyldithiophosphate 0.15%, obtain modifying asphalt (the Properties of Modified Asphalt analytical results sees Table 2) after mixing 90min, gained SBS modifying asphalt index satisfies the technical requirements of I-B polymer modified asphalt among " asphalt highway technology job specifications " JTG F40-2004.
Embodiment 12
The high asphalt content component-5 of adding 92% in the container of whipping appts, 2% four lines that subtract are extracted oil out, after mixing, both mix at 160 ℃, add 5%SBS (Yueyang petrochemical iy produced YH-791 type), high speed shear is disperseed 20min (rotating speed: 4500r/min) in the time of 180 ℃, add 1.0% stabiliser composition after being warming up to 190 ℃, wherein stearic acid 0.1%, polyphosphoric acid 0.2%, tetramethylol methane tetraacrylate 0.4%, tri-lead tetroxide 0.3%, obtain modifying asphalt (the Properties of Modified Asphalt analytical results sees Table 2) after mixing 60min, gained SBS modifying asphalt index satisfies the technical requirements of I-D polymer modified asphalt among " asphalt highway technology job specifications " JTG F40-2004.
Embodiment 13
The high asphalt content component-6 of adding 80% in the container of whipping appts, 10% wax tailings, 5% four lines that subtract are extracted oil out, after mixing, the three mixes at 170 ℃, add 4.5%SBS (Yueyang petrochemical iy produced YH-791 type), high speed shear is disperseed 20min (rotating speed: 4500r/min) in the time of 200 ℃, be warming up to and add 0.5% stabiliser composition after 180 ℃, wherein tetra-sodium 0.1%, pentalyn (105 ℃ of softening temperatures) 0.15%, two-2,4-dichlorobenzoperoxide (DCBPO) 0.15%, calcium oxide 0.1%, obtain modifying asphalt (the Properties of Modified Asphalt analytical results sees Table 2) after mixing 60min, gained SBS modifying asphalt index satisfies the technical requirements of I-B polymer modified asphalt among " asphalt highway technology job specifications " JTG F40-2004.
Embodiment 14
The high asphalt content component-7 of adding 92.8% in the container of whipping appts, 1% wax tailings, after mixing, both mix at 160 ℃, add 5%SBS (Yueyang petrochemical iy produced YH-791 type), high speed shear is disperseed 30min (rotating speed: 4500r/min) in the time of 180 ℃, add 1.2% stabiliser composition after being warming up to 180 ℃, wherein Zinic stearas 0.24%, PETO (PETO) 0.48%, N cyclohexyl 2 benzothiazole sulfenamide 0.48%g, obtain modifying asphalt (the Properties of Modified Asphalt analytical results sees Table 2) after mixing 60min, gained SBS modifying asphalt index satisfies the technical requirements of I-D polymer modified asphalt among " asphalt highway technology job specifications " JTG F40-2004.
Embodiment 15
The high asphalt content component-12 of adding 83% in the container of whipping appts; 12% wax tailings; after mixing, both mix at 160 ℃; add 4%SBS (Yueyang petrochemical iy produced YH-791 type); high speed shear is disperseed 30min (rotating speed: 4500r/min) in the time of 180 ℃; add 1.0% stabiliser composition after being warming up to 190 ℃; wherein stearic acid 0.2%; the sour glycerine ester 0.4% of single 18 (alkane); tertiary butyl benzoyl peroxide 0.4%g; obtain modifying asphalt (the Properties of Modified Asphalt analytical results is seen continued 2) after mixing 60min, gained SBS modifying asphalt index satisfies the technical requirements of I-C polymer modified asphalt among " asphalt highway technology job specifications " JTG F40-2004.
Embodiment 16
The high asphalt content component-13 of adding 77.4% in the container of whipping appts, 10% wax tailings, the frivolous extraction oil of 10% propane deasphalting, after mixing, the three mixes at 180 ℃, add 2%SBS (Yueyang petrochemical iy produced YH-791 type), high speed shear is disperseed 40min (rotating speed: 4500r/min) in the time of 180 ℃, add 0.6% stabiliser composition after being warming up to 180 ℃, wherein stearic acid 0.1%, phosphoric acid 0.1%, Ethylene glycol dimethacrylate 0.2%, ditertiary butyl peroxide (TBP) 0.2%, obtain modifying asphalt (the Properties of Modified Asphalt analytical results is seen continued 2) after mixing 60min, gained SBS modifying asphalt index satisfies the technical requirements of I-C polymer modified asphalt among " asphalt highway technology job specifications " JTG F40-2004.
Embodiment 17
The high asphalt content component-12 of adding 72% in the container of whipping appts, 10% wax tailings, the frivolous extraction oil of 10% propane deasphalting, after mixing, the three mixes at 160 ℃, add 6%SBS (Yueyang petrochemical iy produced YH-791 type), high speed shear is disperseed 60min (rotating speed: 4500r/min) in the time of 160 ℃, add 2.0% stabiliser composition after being warming up to 160 ℃, wherein stearic acid 0.3%, polyphosphoric acid 0.2%, triglycol two 2-ethylhexoates 0.8%, white lead carbonate 0.7%, obtain modifying asphalt (the Properties of Modified Asphalt analytical results is seen continued 2) after mixing 90min, gained SBS modifying asphalt index satisfies the technical requirements of I-B polymer modified asphalt among " asphalt highway technology job specifications " JTG F40-2004.
Embodiment 18
The high asphalt content component-12 of adding 83% in the container of whipping appts, 12% wax tailings, after mixing, both mix at 160 ℃, add 4%SBS (Yueyang petrochemical iy produced YH-791 type), high speed shear is disperseed 30min (rotating speed: 4500r/min) in the time of 180 ℃, add 1.0% stabiliser composition after being warming up to 190 ℃, wherein stearic acid 0.2%, the different pelargonate 0.2% of tetramethylolmethane, the sour glycerine ester 0.2% of single 18 (alkane), diacetyl peroxide 0.4%g, obtain modifying asphalt (the Properties of Modified Asphalt analytical results is seen continued 2) after mixing 60min, gained SBS modifying asphalt index satisfies the technical requirements of I-C polymer modified asphalt among " asphalt highway technology job specifications " JTG F40-2004.
Embodiment 19
The high asphalt content component-1 of adding 96.9% in the container of whipping appts, 1% catalytically cracked oil, both mix at 140 ℃, add 2%SBS (Yueyang petrochemical iy produced YH-791 type), high speed shear is disperseed 20min (rotating speed: 4500r/min) in the time of 170 ℃, be warming up to and add 0.1% stabiliser composition after 180 ℃, wherein stearic acid 0.02%, naphthenic acid glycol ester (NAEP) 0.04%, yellow lead oxide 0.04%, obtain modifying asphalt (the Properties of Modified Asphalt analytical results is seen continued 2) after mixing 60min, gained SBS modifying asphalt index satisfies the technical requirements of I-B polymer modified asphalt among " asphalt highway technology job specifications " JTG F40-2004.
Embodiment 20
The high asphalt content component-12 of adding 72% in the container of whipping appts, 10% wax tailings, the frivolous extraction oil of 10% propane deasphalting, after mixing, the three mixes at 160 ℃, add 6%SBS (Yueyang petrochemical iy produced YH-791 type), high speed shear is disperseed 60min (rotating speed: 4500r/min) in the time of 160 ℃, add 2.0% stabiliser composition after being warming up to 160 ℃, wherein polyphosphoric acid 0.5%, triglycol two 2-ethylhexoates 0.8%, tert butyl isopropyl benzene peroxide 0.7%, obtain modifying asphalt (the Properties of Modified Asphalt analytical results is seen continued 2) after mixing 90min, gained SBS modifying asphalt index satisfies the technical requirements of I-B polymer modified asphalt among " asphalt highway technology job specifications " JTG F40-2004.
In order to further specify effect of the present invention, Comparative Examples 1 be the de-oiled asphalt that does not carry out heat cracking reaction be that raw material prepares modifying asphalt according to above-described embodiment method, Comparative Examples 2 is that the high bituminous matter blend component-5 that is obtained by de-oiled asphalt process heat cracking reaction is raw material, does not prepare modifying asphalt but do not add stabiliser composition.
Comparative Examples 1
The de-oiled asphalt of adding 74.5% in the container of whipping appts, 10% wax tailings, subtract four lines and extract oil 10% out, after mixing, both mix at 160 ℃, add 5%SBS (Yueyang petrochemical iy produced YH-791 type), high speed shear is disperseed 120min (rotating speed: 4500r/min) in the time of 180 ℃, be warming up to and add 0.5% stabiliser composition after 200 ℃, wherein tetra-sodium 0.1%, pentaerythritol triacrylate 0.2%, sulphur 0.1%, magnesiumcarbonate 0.1%, obtain modifying asphalt (the Properties of Modified Asphalt analytical results is seen continued 2) after mixing 120min, the character segregation index of gained modifying asphalt is defective.
Comparative Examples 2
The high asphalt content component-5 of adding 87% in the container of whipping appts, 4% wax tailings, 4% four lines that subtract are extracted oil out, after mixing, both stir 10min at 170 ℃, mix, add 5%SBS (Yueyang petrochemical iy produced YH-791 type), high speed shear is disperseed 60min (rotating speed: 4500r/min) in the time of 190 ℃, do not obtain modifying asphalt (the Properties of Modified Asphalt analytical results is seen continued 2) after not adding stabiliser composition mixing 300min after being warming up to 190 ℃, the character segregation index of gained modifying asphalt is defective.
Comparative Examples 3
The high asphalt content component-5 of adding 85.8% in the container of whipping appts, 4% wax tailings, 4% four lines that subtract are extracted oil out, after mixing, both stir 10min at 170 ℃, mix, add 5%SBS (Yueyang petrochemical iy produced YH-791 type), high speed shear is disperseed 60min (rotating speed: 4500r/min) in the time of 190 ℃, only add 1.2% dispersion stabilizer composition after being warming up to 190 ℃, wherein phenylformic acid 0.6%, poly butylene succinate 0.6% obtains modifying asphalt (the Properties of Modified Asphalt analytical results is seen continued 2) behind the mixing 100min, and the character segregation index of gained modifying asphalt is defective.
Comparative Examples 4
The high asphalt content component-5 of adding 85.8% in the container of whipping appts, 4% wax tailings, 4% four lines that subtract are extracted oil out, after mixing, both stir 10min at 170 ℃, mix, add 5%SBS (Yueyang petrochemical iy produced YH-791 type), high speed shear is disperseed 60min (rotating speed: 4500r/min) in the time of 190 ℃, only add 1.2% crosslinking reaction agent composition after being warming up to 190 ℃, wherein sulphur 0.6%, curing-N, N '-dicaprolactam 0.4%, magnesium oxide 0.2% obtains modifying asphalt (the Properties of Modified Asphalt analytical results is seen continued 2) behind the mixing 100min, and the character segregation index of gained modifying asphalt is defective.
Known that by Comparative Examples 1 directly take de-oiled asphalt as raw material, do not carry out heat cracking reaction and process its asphalt content of raising, prepared Properties of Modified Asphalt is defective; Known by Comparative Examples 2, although de-oiled asphalt has been carried out the heat cracking reaction processing, but do not add stabiliser composition of the present invention in the reaction process, the gained Properties of Modified Asphalt is still defective, by Comparative Examples 3 and Comparative Examples 4 as can be known, although de-oiled asphalt has been carried out the heat cracking reaction processing, if but in reaction process, only add dispersion stabilizer or crosslinking reaction agent, the gained Properties of Modified Asphalt is still defective, this explanation will prepare qualified modifying asphalt with low asphalt content raw material, and the heat cracking reaction that raw material is done is processed and improved its asphalt content and further add stabiliser composition again and can prepare qualified modified bitumen product.
The preparation of table 2 modifying asphalt and character
Preparation and the character of continued 2 modifying asphalts
Preparation and the character of continued 2 modifying asphalts
Claims (9)
1. the raw material of a low asphalt content is used for the preparation method of modifying asphalt, it is characterized in that:
By raw material gross weight 100%,
High asphalt content component: 72-96.9%, polymer modifiers: 2-6%, compatilizer: 1-20%, stabiliser composition: 0.1-2.0%, the atmospheric boiling point of described high asphalt content component is greater than 350 ℃, its penetration degree is 30-90 (1/10mm), 45～70 ℃ of softening temperatures, the asphalt content 5%～25% in four components;
The preparation method is:
(1) by aromatic hydrocarbon content less than 30%, asphalt content is higher than 350 ℃ vacuum residuum, a kind of or mixture of both arbitrary proportions in the de-oiled asphalt less than 5% atmospheric boiling point, by being heated to 350 ℃～450 ℃, enter the thermally splitting separation column, under 350 ℃～450 ℃ temperature, in tower, stop 20～120min, heat cracking reaction occurs, thermally splitting generate oil again through the distillation cutting obtain atmospheric boiling point greater than 350 ℃ tower at the bottom of residue, obtain high asphalt content component;
(2) high asphalt content component is mixed at 140-190 ℃ in proportion with compatilizer, add polymer modifiers, shear 5-120min with high-speed shearing machine or colloidal mill at 160-200 ℃, polymer physics is distributed in the pitch;
(3) be warming up to temperature of reaction 160-230 ℃, order adds stabiliser composition successively in no particular order, and stirring reaction 30-360min makes polymkeric substance and pitch generation chemical reaction, the preparation modifying asphalt.
2. the raw material of low asphalt content according to claim 1 is used for the preparation method of modifying asphalt, and it is characterized in that: residual oil is to be higher than 350 ℃ vacuum residuum by the atmospheric boiling point that crude oil obtains by atmospheric and vacuum distillation; De-oiled asphalt is by propane deasphalting technique gained by residual oil.
3. the raw material of low asphalt content according to claim 1 is used for the preparation method of modifying asphalt, and it is characterized in that: described polymer modifiers is thermoplastic elastomer polymer, is the styrene butadiene based block copolymer.
4. the raw material of low asphalt content according to claim 1 is used for the preparation method of modifying asphalt, and it is characterized in that: described polymer modifiers is SBS.
5. the raw material of low asphalt content according to claim 1 is used for the preparation method of modifying asphalt, it is characterized in that: described compatilizer is selected from refinery and extracts oil, catalytically cracked oil out and extract oil, wax tailings out and extract one or more the mixture that oil, the frivolous oil of solvent deasphalting gained are extracted oil out out with four lines that subtract that solvent extraction process obtains, its aromaticity content is greater than 45%, and flash-point is greater than 235 ℃.
6. the raw material of low asphalt content according to claim 1 is used for the preparation method of modifying asphalt, it is characterized in that: described stabiliser composition by weight 100% is comprised of the dispersion stabilizer of 10-90% and the crosslinking reaction agent of 10-90%.
7. the raw material of low asphalt content according to claim 6 is used for the preparation method of modifying asphalt, it is characterized in that: described dispersion stabilizer is comprised of acid and polyol ester, the crosslinking reaction agent is selected from sulphur and compound thereof, superoxide, one or more mixtures in the inorganic, metal oxide.
8. the raw material of low asphalt content according to claim 7 is used for the preparation method of modifying asphalt, it is characterized in that: acid is selected from stearic acid in the described dispersion stabilizer, phenylformic acid, molecular weight is the naphthenic acid of 122-500, oleic acid, lauric acid, Zinic stearas, phosphoric acid, polyphosphoric acid (H
6P
4O
13), tetra-sodium (molecular formula H
4P
2O
7) in one or more mixture; Described polyol ester is selected from single oleic acid sorbitan ester, the naphthenic acid glycol ester (NAEP) of acid number≤1.0mgKOH/g, pentaerythrito naphthenate (molecular formula [C
6H
5(CH
2)
mCOOCH
2]
n-C (CH
2OH)
4-nM:0～27 wherein, n:1～4), pentaerythritol stearate (PETS), the poly butylene succinate of molecular weight 〉=362, four isocaprylic acid pentaerythritol esters, the phenylformic acid pentaerythritol ester, the different pelargonate of tetramethylolmethane, pentaerythritol tetraoctyl stearate, tetramethylolmethane four mercaptoacetates, tetramethylol methane tetraacrylate, softening temperature (ring and ball method) is 100-108 ℃ pentalyn, PETO (PETO), neopentyl glycol dioleate, the sour glycerine ester of single 18 (alkane), Ethylene glycol dimethacrylate, triglycol two 2-ethylhexoates, the mixture of one or more in the pentaerythritol triacrylate.
9. the raw material of low asphalt content according to claim 7 is used for the preparation method of modifying asphalt, it is characterized in that: in the described crosslinking reaction agent, sulphur and compound thereof are selected from elemental sulfur, powder-sulphur, insoluble sulfur or colloid sulphur, curing-N, N '-dicaprolactam, dicyclohexyl tetrathio diazine, ammonium dibutyldithiophosphate, one or more mixtures in the N cyclohexyl 2 benzothiazole sulfenamide; Described superoxide is selected from benzoyl peroxide (BPO), dicumyl peroxide (DCP), diacetyl peroxide, two-2,4-dichlorobenzoperoxide (DCBPO), ditertiary butyl peroxide (TBP), tertiary butyl benzoyl peroxide, one or more mixtures of tert butyl isopropyl benzene peroxide; Described metal oxide is selected from aluminum oxide, calcium oxide, calcium hydroxide, magnesium oxide, magnesiumcarbonate, zinc oxide, zinc carbonate, yellow lead oxide, tri-lead tetroxide, one or more mixtures in the white lead carbonate.
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| CN115433466B (en) * | 2021-06-01 | 2024-02-02 | 中国石油化工股份有限公司 | Epoxy modified asphalt and preparation method thereof |
| CN116355430A (en) * | 2023-02-23 | 2023-06-30 | 山西新鸿顺能源有限公司 | Preparation method of waterproof coiled material asphalt prepared from waste mineral oil tower top oil |
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| CN103044932B (en) | 2015-08-19 |
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Effective date of registration: 20180718 Address after: 100007 Dongzhimen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: CNPC KARAMAY PETROCHEMICAL CO.,LTD. Patentee after: PetroChina Company Limited Address before: 100007 Oil Mansion, Oil Mansion, 9 Dongzhimen North Street, Dongcheng District, Beijing. Patentee before: PetroChina Company Limited |