CN1325569C - Asphalt thickener and asphalt composition - Google Patents
Asphalt thickener and asphalt composition Download PDFInfo
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- CN1325569C CN1325569C CNB2004100507949A CN200410050794A CN1325569C CN 1325569 C CN1325569 C CN 1325569C CN B2004100507949 A CNB2004100507949 A CN B2004100507949A CN 200410050794 A CN200410050794 A CN 200410050794A CN 1325569 C CN1325569 C CN 1325569C
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Abstract
The present invention provides an asphalt thickening agent and an asphalt composition. The asphalt thickening agent comprises metal compounds and peroxides containing benzene rings. The weight of the thickening agent of the asphalt composition accounts for 0.05 to 2% of the weight of substratum asphalt. The asphalt thickening agent can effectively improve the penetration degree of asphaltic products, and simultaneously does not decrease product properties of extensibility, and the like. The asphalt composition has a preparation method that the thickening agent is dissolved in asphalt cementing material to be uniformly stirred. The asphalt thickening method has the advantages of simple technology, low cost and no environmental protection problem.
Description
Technical field
The present invention relates to a kind of pitch thickening material and use the bituminous composition of this thickening material, and the preparation method of bituminous composition.
Background technology
For a long time, in oil refining enterprise, the technological process that participates in petroleum pitch production mainly contains atmospheric and vacuum distillation, solvent extraction, component is in harmonious proportion and the blowing oxidation.Wherein atmospheric and vacuum distillation, solvent extraction device will be taken into account the whole processing scheme of crude oil simultaneously, are not to be provided with for the production of asphaltic products. is special; Component is in harmonious proportion and the blowing oxidizing process then is the main technique technology of producing concrete petroleum asphalt product.When producing the less building asphalt of high penetration ratio bitumen for road use and penetration degree, bitumen for road use, mainly be to depend on blowing oxidizing process process particularly, the pitch that is obtained by methods such as atmospheric and vacuum distillation and solvent extractions generally is unsuitable for direct use.
The processing tail gas of bituminous blowing oxidation contains 3, hazardous contaminants such as 4-benzopyrene, sulfide, carbon monoxide and volatile organic compounds.CN1415699A adopts static mixer, makes air and asphalt stock thorough mixing, improves the utilization ratio of air, has reduced the quantity discharged of tail gas, but has not fundamentally addressed the above problem.
Because the needs of practice of construction, the penetration degree of some ready-made asphaltic products.es does not meet the road with requiring.And present most of pitch transfer enterprise does not have oxidation unit, can't handle the higher asphaltic products. of penetration degree.
CN1004137B discloses a kind of as the modified asphalt composite of paving the way.Compound used therefor comprises the carboxylate salt or the inorganic acid salt of iron, manganese, cobalt.Wherein make it earlier to be dissolved in the pitch, mix with pellet then, significantly improve compression, bending and the fatigue strength on final curing road surface.
US2928753 mixes polyvalent metal salts such as copper, cobalt or manganese and as a kind of dispersion agent of road oil with monocarboxylic acids such as high-molecular weight oleic acid or naphthenic acid, lost efficacy because of " alligatoring " makes pitch preventing.
US4234346 discloses the compound that adds Organic Manganese in pitch, uses separately or is used in combination with organic copper or organic cobalt compound.Wherein make it earlier to be dissolved in the pitch, mix with pellet then, improve final compression, bending and the fatigue strength that solidifies the road surface.
Above-mentioned technology is mainly considered to improve bituminous intensity, and does not consider indexs such as penetration degree, extensibility.And experiment shows that behind the adding metallic compound, the bituminous extensibility can obviously reduce in pitch.
Summary of the invention
At the deficiencies in the prior art, the invention provides a kind of pitch thickening material, and the bituminous composition that uses this thickening material, the bituminous composition that adds pitch thickening material of the present invention can effectively reduce penetration of bitumens, and the bituminous extensibility does not have obvious variation simultaneously.
Pitch thickening material of the present invention comprises metallic compound and superoxide, and the content of metallic compound is 20wt%～90wt%, is preferably 40wt%～80wt%; The content of superoxide is 10wt%～80wt%, is preferably 30wt%～50wt%.Metallic compound can be one or more compounds that contain iron, cobalt and copper, and the anionic group in the compound can be to come from carboxylic acid, sulfuric acid, hydrochloric acid, sulfonic acid, phosphoric acid, C1～C30 alcohol, phenol and the C1～C30 ketone etc. one or more.Be preferably the carboxylic acid, sulfuric acid, the sulfonic acid that contain 2～30 carbon atoms, for example acetic acid, sad, naphthenic acid, oleic acid, stearic acid with and composition thereof or with other sour mixtures.The superoxide that contains is generally one or more in hydrogen peroxide, calcium peroxide, Magnesium peroxide, benzoyl peroxide, the dicumyl peroxide etc., preferably includes the above-mentioned superoxide that contains phenyl ring.
Thickening material can also comprise the compound that dissolves in other metals of bituminous, as comprising in the metal ion compounds such as potassium, calcium, barium, manganese, lead, chromium, silver one or more, anionic group is same as described above, and content accounts for the 10wt%～80wt% of thickening material weight.Each component concentration sum of thickening material is 100wt%.
Certainly, if desired asphaltic products. is carried out the improvement of others performance, can also add suitable additive, as SBS etc. according to this area general knowledge.
Bituminous composition of the present invention contains matrix pitch and above-mentioned pitch thickening material, and its medium pitch thickening material is the 0.01wt%～2wt% of matrix pitch, is preferably 0.05wt%～1wt%.Matrix pitch can be various asphalt stocks, is 50～200 asphalt stock as 25 ℃ of penetration degrees.
The preparation method of bituminous composition of the present invention is, matrix pitch is heated on its softening temperature or the fusing point, then the pitch thickening material added and stirs to get final product.For overwhelming majority's pitch commonly used, make it fluidised temperature and be at least 100 ℃, generally be about 120 ℃ to 180 ℃.Under such temperature, the thickening material that is dissolved in the pitch is enough to disperse completely and dissolving by stirring fully to reach.
The present invention adopts a kind of pitch thickening material, under pitch heat-storage condition, in straight-run pitch or asphalt stock, add thickening material, cause a series of complex reactions of pitch oxidation, condensation, make the active constituent in the pitch be converted into comparatively stable material, thereby the penetration ratio of asphaltic products. is improved; Simultaneously, according to the difference of thickening material, the constitutional features of bituminous molecular-weight average, molecule also can obtain corresponding adjustment.In the improved while of molecular-weight average, the penetration degree of asphaltic products. will change significantly, can satisfy the building asphalt of low penetration degree, the production requirement of bitumen for road use.In addition, bituminous composition of the present invention does not obviously reduce the bituminous extensibility, has improved the use properties of bituminous composition.The entire reaction course of pitch thickening does not have tangible fume emission, can satisfy the requirement of cleaner production.And equipment requirements and schedule of operation are comparatively simple, do not need Special Equipment, can implement in hot storage process, and be simple and easy to do.
Embodiment
By implementing following object lesson of the present invention, can further show feature of the present invention.
Embodiment 1
Thickening material A iron(ic) chloride 60wt%, lead oleate 30wt%, benzoyl peroxide 10wt%.
Thickening material B isocaprylic acid iron 20wt%, iron naphthenate 30wt%, copper sulfate 25wt%, cobalt naphthenate 15wt%, calcium peroxide 5wt%, benzoyl peroxide 5wt%.
Thickening material C copper sulfate 50wt%, cobalt naphthenate 20wt%, benzoyl peroxide 30wt%.
Thickening material D copper sulfate 20wt%, iron naphthenate 10wt%, dicumyl peroxide 70wt%.
Thickening material E cobalt naphthenate 20wt%, iron(ic) chloride 10wt%, iron naphthenate 30wt%, benzoyl peroxide 20wt%, Magnesium peroxide 10wt%, Potassium ethanoate 10wt%.
Embodiment 2
With penetration degree is that 173 bitumen A is heated to about 150 ℃, and adds the granular pitch thickening material of 0.05wt% A, and after 60 minutes, mixture is even.Bitumen A penetration degree is 137.
Embodiment 3
With penetration degree is that 163 pitch B is heated to about 150 ℃, and adds the granular pitch thickening material of 0.2wt% B, and after 60 minutes, mixture is even.Pitch B penetration degree is 128.
Embodiment 4
With penetration degree is that 90 pitch C is heated to about 150 ℃, and adds the granular pitch thickening material of 0.3wt% C, and after 60 minutes, mixture is even.Pitch C penetration degree is 62.
Embodiment 5
With penetration degree is that 71 pitch D is heated to about 150 ℃, and adds the granular pitch thickening material of 0.5wt% D, and after 60 minutes, mixture is even.Pitch D penetration degree is 56.
Embodiment 6
With penetration degree is that 56 pitch E is heated to about 150 ℃, and adds the granular pitch thickening material of 1.2wt% E, and after 60 minutes, mixture is even.Pitch E penetration degree is 47.
Comparative Examples
Press the method for embodiment 4, thickening material does not use superoxide, and its product extensibility relatively.
| Sample | 5 ℃ of extensibilities (mm) |
| Matrix pitch | 8.5 |
| Thickening material does not contain superoxide | 5.5 |
| Thickening material contains superoxide | 8 |
Claims (10)
1, a kind of pitch thickening material is characterized in that comprising metallic compound and superoxide, and the content of metallic compound is 20wt%～90wt%, and the content of superoxide is 10wt%～80wt%; Metallic compound is to contain in iron, cobalt and the copper compound one or more, and the anionic group in the compound is to come from carboxylic acid, sulfuric acid, hydrochloric acid and the sulfonic acid one or more.
2,, it is characterized in that described metallic compound content is 40wt%～80wt% according to the described thickening material of claim 1.
3, according to the described thickening material of claim 1, the content that it is characterized in that described superoxide is 30wt%～50wt%.
4,, it is characterized in that described superoxide is one or more in hydrogen peroxide, calcium peroxide, Magnesium peroxide, benzoyl peroxide and the dicumyl peroxide according to the described thickening material of claim 1.
5, according to the described thickening material of claim 1, it is characterized in that also comprising in potassium, calcium, barium, manganese, lead, chromium and the silver metal ionic compound one or more, content in thickening material is 10wt%～80wt%, and each component concentration sum of thickening material is 100wt%.
6, according to the described thickening material of claim 5, it is characterized in that in thickening material, the content of metallic compound be 20wt%～80wt%, the content of described superoxide is 10wt%～50wt%, and the content of one or more in described potassium, calcium, barium, manganese, lead, chromium and the silver metal ionic compound is 10wt%～30wt%.
7, a kind of bituminous composition is characterized in that containing in the matrix pitch the arbitrary thickening material of claim 1～6.
8,, it is characterized in that the content of described thickening material in matrix pitch is 0.01wt%～2wt% according to the described bituminous composition of claim 7.
9,, it is characterized in that the content of described thickening material in matrix pitch is 0.05wt%～1wt% according to the described bituminous composition of claim 7.
10,, it is characterized in that described matrix pitch is that 25 ℃ of penetration degrees are 50～200 asphalt stock according to the described bituminous composition of claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100507949A CN1325569C (en) | 2004-10-29 | 2004-10-29 | Asphalt thickener and asphalt composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100507949A CN1325569C (en) | 2004-10-29 | 2004-10-29 | Asphalt thickener and asphalt composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1765999A CN1765999A (en) | 2006-05-03 |
| CN1325569C true CN1325569C (en) | 2007-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100507949A Active CN1325569C (en) | 2004-10-29 | 2004-10-29 | Asphalt thickener and asphalt composition |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115141494A (en) * | 2022-08-09 | 2022-10-04 | 佛山市顺德区鑫路材料技术有限公司 | Thickening agent applied to production of modified asphalt and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4234346A (en) * | 1978-11-24 | 1980-11-18 | Chem-Crete Corporation | High strength modified asphalt paving composition |
| US5494741A (en) * | 1986-12-12 | 1996-02-27 | Frank Fekete | Time delayed thickening, slump-resistant polymer concrete compositions, methods of repairing concrete surfaces, concrete structures repaired therewith and articles of construction comprising a formed mass of said compositions in cured condition |
-
2004
- 2004-10-29 CN CNB2004100507949A patent/CN1325569C/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4234346A (en) * | 1978-11-24 | 1980-11-18 | Chem-Crete Corporation | High strength modified asphalt paving composition |
| US5494741A (en) * | 1986-12-12 | 1996-02-27 | Frank Fekete | Time delayed thickening, slump-resistant polymer concrete compositions, methods of repairing concrete surfaces, concrete structures repaired therewith and articles of construction comprising a formed mass of said compositions in cured condition |
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| Publication number | Publication date |
|---|---|
| CN1765999A (en) | 2006-05-03 |
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