• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Asphalt composition suitable for road surfaces comprising an asphaltic basis material and a modifier, the modifier comprising from 1 - 50% by weight of rubber thermal degradation products in a medium chosen from petroleum asphalts, mineral oil selective refining residues, kerosene heavy residues, or coal tar oil residues, the degradation of the rubber being effected by heating it at a temperature of from 240 - 380.degree.C in the chosen medium. These modified asphalts in addition to exhibiting the known good tyre adhesion and load resistance of rubberized asphalts, also exhibit better thermoplastic characteristics and improved adhesion to the substrate on which it is laid, for example road bed aggregate.
    公开号:SU793407A3
    申请号:SU762313353
    申请日:1976-01-12
    公开日:1980-12-30
    发明作者:Масиарчик Хелена；Шчурек Томаш
    申请人:Инстытут Технологии Нафти (Фирма)；
    IPC主号:
    专利说明:

    (54) METHOD FOR OBTAINING A BITUMEN BINDER
    one
    The invention relates to a method for producing a bituminous binder using waste rubber tires.
    This bituminous binder is used 5 for the preparation of mineral-asphalt mixtures used as road pavements, and replaces the oil bitumens or natural asphalt-10 that are traditionally used for this purpose.
    Known asphalt bitumen are obtained by mixing petroleum bitumen with rubber powder from rubber tires at a temperature of about 5,180 ° C. In this process, the vulcanized rubber remains undissolved in the bitumen and serves as a filler or swelling agent, or as a substance for absorbing oils contained in the bitumen. The addition of rubber powder to asphalt for roads increases its softening temperature, but largely reduces viscosity and makes it difficult to prepare mineral-asphalt compositions. Compositions that include asphalt and rubber powder are not stable when stored in a liquid state and show a tendency to oss-f
    rubber and the change in softening temperature and permeability due to the ongoing process of rubber devulcanization.
    These drawbacks are especially manifested with an increased-1 additive of rubber powder, for example, cvaaJe 8% by weight with a low degree of grinding of rubber. Priming. The use of rubber powder from used tires requires grinding them into fine powder and separating the cord, which is a difficult and expensive process that requires a lot of energy.
    Methods are known for improving asphalt by adding up to 5% by weight of natural or synthetic rubber. Rubber modified road asphalts provide road surfaces with better properties and, in particular, better weather resistance, abrasion and a higher degree of roughness compared to unmodified asphalt.
    For asphalt modification, it is possible to use regenerated rubber obtained from used rubber noKpr instead of rubbers. The effect of using such rubber with: How to improve the properties of the road: falt is more important than its content in the unchanged and low changeable form of carbohydrate rubber. Therefore, the best results are achieved when using the generated rubber from used rubber tires, which are joking by carrying out the process of rotation at low temperatures (T 150 to 2QQ ° C), using the active and devulcanization catalyst. a) the amount added to the road: the recovered rubber folded is enriched with several% by weight, so that the addition of a larger amount of oil makes it difficult to prepare the mineral: falt mixture and the manufacture of a floor covering. In addition, the recovery of regenerated rubber requires expensive technological processes, as well as the mechanical and chemical processing of manufactured rubber tires.
    In addition, a method is known for preparing a thermoplastic composition. The heating and homogenization of bush rubber with bitumen with the addition of 10% by weight of mineral oil at temperatures ranging from 204 to 343 ° C, preferably at a temperature of 218) 2.
    The lecb produced by this technology is similar to a mix of asphalt with pere-dated rubber, which is resting at low temperatures with matte, intensive mixing.
    The introduction of regenerated rubber provides an increase in the temperature of the asphalt grind and a significant viscosity, while the semi-finished products have very good properties like sealing materials. The introduction of large amounts of recycled rubber into road asphalt creates difficulties in the preparation of mineral and asphalt rock and road surfaces using conventional road machines.
    The large addition of butyl rubber makes it difficult to coat the fill; In addition, the resources of rubber rubber are comparatively small compared to the respecs of used rubber shoes, regenerated butyl, and zina is a valuable tool for manufacturing rubber products.
    The low saturation of hydrocarbon of rubber rubber determines the fact that it does not combine in a stable asphalt colloidal structure5 and in a mixture with asphalt it is suitable for oxidation processes.
    The purpose of the invention is to simplify the technical process by eliminating the need for pre-separating the cord from the rubber of tires and improving the quality of the target product.
    The essence of the invention is to obtain a homogeneous composition of petroleum bitumen and products of thermal decomposition of used rubber tires, while thermal destruction of rubber tires is carried out without separating organic cord in an environment of petroleum bitumen or in an environment of an extract of selective purification of lubricating oils, which is carried out Pr temperature, providing a significant destruction of hydrocarbons, rubber: and organic cord, and in the preservation of the bitumen composition with a homogeneous structure and properties Rozhnev bitumen even at high concentrations of recycled rubber approximate physicochemical properties. The method involves the distillation of solutions of rubber destruction products and oxidation with compressed air.
    The advantage of the proposed method lies in the simple and cheap technology of processing used rubber tires without the need for crushing and separating the cord, as well as the possibility of using large quantities (up to 50%) of unnecessary waste to produce a bituminous binder.
    The resulting mixture has properties that are close to typical asphalt road, so it can be used to prepare the mass for road paving and its manufacture. In addition, the asphalt mixture can be mixed in any proportions with petroleum bitumen.
    The introduction of rubber degradation products simultaneously causes an improvement in the thermoplastic properties of asphalt, increases cohesion and adhesion relative to the filler, and allows obtaining mineral-asphalt mixtures with increased mechanical strength and roughness.
    According to the invention, from 99 to 50% by weight of oil bitumen with a paraffin content of less than 6% by weight is mixed from 1 to 50% by weight of used rubber tires made on the basis of rubber, in particular styrene butadiene, natural butadiene and / or isoprene rubber from which the cord is not previously removed, and the mixture is heated at a temperature of from 240 to, mainly at 290-320 ° C, until the components are diluted and until a homogeneous solution is obtained.
    The resulting solution of the product of destruction of tires in asphalt is distilled, mainly with the aid of water vapor or under vacuum, while boiling water is removed from the solution.
    at temperatures below 200 ° C, low molecular weight products of a melt of hydrocarbons, rubber and cords, as well as some undesirable components contained in rubber, such as b-naphthylamine.
    It is recommended to oxidize the rubber degradation product solution in asphalt with compressed air at a temperature of 200 to 300 ° C, thereby increasing the softening temperature and reducing the penetration of asphalt with the rubber degradation product and improving the necessary properties. In another method, from 1 to 80 weight % of rubber used in 99 to 200% by weight of petroleum bitumen and / or heavy products of destructive oil refining, and / or extracts of selective purification of lubricating oils, while dissolving is done by m heating and mixing the constituents at a temperature of from 240 to 380 ° C, preferably from 290 to C, to obtain a homogeneous solution.
    The resulting mixture is introduced into petroleum bitumen with a content less than b weight. paraffin and / or natural asphalt are introduced in such an amount that the content of recycled used rubber tires in ready asphalt is from 1 to 50% by weight.
    The rubber decomposition solution is distilled before or after combining with asphalt under reduced pressure, or distilled with water vapor, or oxidized with compressed air at a temperature between 200 and 300 ° C.
    The use of highly aromatic extracts from the process of selective purification of oils or highly aromatic heavy oils from destructive oil refining in the process of destruction and dissolution of rubber wastes reduces the dissolution of used rubber tires and facilitates the production of homogeneous solutions.
    On the other hand, the introduction of a large amount of oil into asphalt is, however, undesirable because it greatly reduces the softening temperature and increases the penetration of asphalt, deteriorating the properties of mineral-asphalt mixtures.
    This problem was solved by the oxidation of rubber decomposition product solutions, as a result of which the oil components transferred mainly to asphalt resins. The use of extracts makes it possible to produce asphalts of significantly higher quality compared to the use of oils from the cracking process.
    In contrast to the addition of rubber or regenerated rubber to asphalt paving, the degradation product of the invention uses rubber tires to positively plasticize asphalt, reduces softening temperature and fragility of asphalt, and also increases penetration. Mixtures of asphalt and degradation product of used rubber tires are homogeneous and thermally stable also with a high content of rubber degradation product, which is caused by the decomposition of most rubber hydrocarbon molecules to the size of the components of the oil boot, especially resins.
    In addition, it was found that under the conditions of the process, a strong compound of recycled polyamide or polyester cord occurs in the asphalt structure. The asphalt mixture obtained by the proposed method can be used as a bituminous cement for the preparation of mineral-asphalt mixtures used in the manufacture of asphalt road surfaces.
    The asphalt mixture can be used to prepare mineral-asphalt mixtures used, for example, for cast and asphalt concrete, in an amount customary for petroleum bitumen (from 5 to 12% by weight, preferably from 7 to 9% by weight), and manufacturing pavement can be carried out using existing road machines.
    Example 1. 65% by weight of distillation asphalt with softening temperature of 39 ° C according to the ring and ball method and with a content of 2.9% by weight of paraffin, 15 parts of FurFurol extract with viscosity 0 23 is eaten at 100 ° With and
    20 weight.h. unground, used rubber povrylek with polyamide cord.
    The contents of the stirrer are heated to 310 ° C and at this temperature they are vigorously stirred for b by means of circulation pumps. After this, the rubber decomposition product solution is blown with superheated steam at a temperature of 3–3% for 4 hours. oils with t.kip. from 185 to drop off.
    The processed solution of rubber degradation product in asphalt is pumped into the oxidation apparatus and there it is oxidized with compressed air at 260 ° C for 16 hours, after which the finished product is obtained.
    Light oil is used as fuel oil, and tire wire can be used as scrap metal.
    Asphalt mix has the following properties:
    Penetrati at n: - gruzks
    100 g, mm / 10, in vehicle;
    69
    5 s. at 25 С Kinematic viscosity at, eats ..: Temperature softening according to the ring and ball method, ° С Fraction brittleness point, ° C Marcuson's ignition point, ° С Viscosity at temperature, cm. Holmes index penetration index 15 / 25С Coupling with basalt aggregate,% 100 The same with granite aggregate,% 80 with lime aggregate,% 100 with gravel aggregate,% 100 Asphalt mixtures used to prepare asphalt concrete with the following composition, wt.%: Asphalt mixture b Basalt rubble 73 Mud sand 15 Hammer lime6 Asfa was obtained concrete with Marshall properties: Free space,% 1.9 Stability, kgf 998 Deformation, mm4 Hygroscopicity,% 1 Compressive strength at 20s, kg / cm Same after water saturation, kg / cm 52 Example 2. Use the agitator to press 500 kg of a DI.STILATION asta with penetration of 310 mm / 10 at a temperature of 25 ° С and 500 kg of rubber tires, crushed to a crushing plant to a size of 50 mm. The contents of the stirrer are heated to 320 ° C and stirred at this temperature for 4 hours, after hours for 4 hours they are rinsed with water at a temperature of 30 ° C and 6% by weight of oil are distilled off. The contents of the agitator are filtered to separate the wire and lytic threads. 500 kg of the resulting solution is stirred at a temperature of 150 ° C. 500 kg of oxidized petroleum bi with penetration of 24 mm / 10 at a rate of pe and paraffin content of 3, 1 wt.%. An asphalt mixture with the following properties is obtained: Penetration, 5 s, 100 g at 25 ° C, mm / 1058 Same at 5 ° C, mm / 10 8 Viscosity at 25 C, cm 100 Kinematic viscosity at at 135 ° C, There is990 Evaporability in a thin layer,% 0.1 Holtes Index3.4. Penetration index-0.2 Adhesion to basalt / aggregate,% 100 The same with granite aggregate,% 80 with lime aggregate,% 100 with gravel aggregate,% 90 Prefold the cast mass with the following composition,%: Asphalt mixture8 Basalt crushed stone 60 Pit sand13 Hammer lime19 Example 3. 300 kg of extract containing 61% by weight of aromatic hydrocarbons from furfural refining of a distillation oil of vacuum distillation with a viscosity of 8.9 is fed at a temperature of 100 ° C and the mixer is heated to a temperature of 300 ° C. While stirring the contents of the agitator at a temperature, granulated used rubber tires, previously freed from wires and metal parts, are continuously metered. After the introduction of the used rubber tires is completed, the contents of the agitator are stirred for another 1 hour, 600 kg of the obtained solution of the product of destruction of rubber tires in the extract is mixed with 400 kg of asphalt and oxidized with compressed air at a temperature of 250 ° C for 30 hours. 195 mm / 10 at a temperature of 25s. Example 4. A mixer is charged with 900 kg of distillation bitumen with penetration of 101 mm / 10 at a temperature and heated to a temperature of 280 ° C, after which 10 kg of granulated rubber tires with a grain size of 1 mm are mixed in and mixed with the contents of a mixer at 280 ° C for 1.5 hours. The resulting solution is oxidized with compressed air at 200 ° C for 28 hours. The final product has the following properties: Penetration at 100 g, 5 s, at 25PC, mm / 10 40 at 150 s, mm / 10 16 Kinematic viscosity at 135 ° C, eats950 Temperature softer. Neither the ring and the ball. Frater brittleness point according to Marcuson, ° С
    Viscosity at 25 ° C, cm 66
    Evaporation in thin
    layer,% 0.4
    权利要求:
    Claims (3)
    [1]
    1. A method for producing a bituminous binder, including heat treating rubber used tires in an oil product selected from the group containing petroleum bitumen, extracts for the selective purification of oil fractions, heavy liquid products of secondary refining processes, or mixtures of the listed products, at a temperature not lower than This is due to the fact that, in order to simplify the process technology by eliminating the need for pre-separating the cord from the rubber of tires and improving the quality of the target product, abotke subjected rubber tires used on the basis of natural, butadiene, isoprene rubbers or butadienefirnogo, heat treatment is performed at a temperature 240ZZO C until a homogeneous liquid, the latter is subjected to distillation under vacuum and / or a water-
    steam and / or oxidized with oxygen oxygen:, ha at a temperature of 200-300s.
    [2]
    2. A method according to claim 1, characterized in that 3 quality petroleum products use petroleum bitumen containing not more than 6 wt.% Paraffins, and heat-treating the mixture containing tires in an amount of from 1 to 50 wt.%.
    [3]
    3. The method according to claim 1, characterized by the fact that heat treatment
    0 is subjected to a mixture containing tires in an amount of from 1 to 80 wt.%; As a result of heat treatment, the components of the bitumen agent are obtained, which are mixed before or after distillation and / or oxidation with oil bitumen containing no more than b weight to obtain the desired product. .% paraffins, in an amount to obtain the target product containing not more than 50 wt.% product processing tires.
    Sources of information taken into account in the examination
    1.Tugov I.I. Problems of use of used tires. M., Rostehiz 5 dates, 1962, p. 41-69.
    2.Patent UK
    No. 787873, US22), 1957 (prototype).
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    同族专利:
    公开号 | 公开日
    FI66892B|1984-08-31|
    RO80997B|1984-08-30|
    PL101436B1|1978-12-30|
    DE2601132A1|1976-07-22|
    ATA27576A|1982-05-15|
    NO150282B|1984-06-12|
    FI66892C|1984-12-10|
    NL7600509A|1976-07-21|
    FR2297895A1|1976-08-13|
    DE2601132C2|1982-03-25|
    NO760068L|1976-07-20|
    SE429345B|1983-08-29|
    DK11776A|1976-07-20|
    BE837692A|1976-05-14|
    BR7600271A|1976-08-31|
    CA1052057A|1979-04-10|
    HU177847B|1981-12-28|
    LU74194A1|1976-05-18|
    IT1054797B|1981-11-30|
    JPS5840586B2|1983-09-06|
    JPS51125412A|1976-11-01|
    DD123891A5|1977-01-19|
    RO80997A|1984-06-21|
    SE7600378L|1976-07-20|
    FR2297895B1|1979-07-06|
    FI753663A|1976-07-20|
    AT369418B|1982-12-27|
    GB1539116A|1979-01-24|
    CS209484B2|1981-12-31|
    NO150282C|1984-09-19|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    WO1989010383A1|1988-04-28|1989-11-02|Nauchno-Proizvodstvennoe Obiedinenie "Dorstroitekh|Bitumen-rubber composition and method of obtaining it|
    RU2630529C1|2016-05-26|2017-09-11|Владимир Георгиевич Андриенко|Method for production of modified bituminous binders for road surfaces |DD7888A|
    GB787873A|1954-10-18|1957-12-18|Us Rubber Co|Improvements in thermoplastic compositions|
    FR1120244A|1955-01-21|1956-07-03|Exxon Standard Sa|Process for dissolving synthetic rubber in bitumens|
    US3844668A|1972-01-13|1974-10-29|R Winters|Pavement composition|
    JPS4933916A|1972-07-29|1974-03-28|ZA77721B|1976-02-18|1978-09-27|Mobil Oil Corp|Paving grade asphalt compositions|
    JPS6322232B2|1982-04-26|1988-05-11|Toa Doro Kogyo Kk|
    JPS639552B2|1982-04-26|1988-02-29|Toa Doro Kogyo Kk|
    JPS639553B2|1982-04-26|1988-02-29|Toa Doro Kogyo Kk|
    DE3630132C2|1986-09-04|1999-12-16|Haas Johannes|Process for the production of an elastic bituminous insulating and sealing compound|
    FI911739A|1991-04-11|1992-10-12|Neste Oy|BINDEMEDEL FOER ASPHALT|
    US5270361A|1992-02-25|1993-12-14|Bitumar R. & D. |Asphalt composition and process for obtaining same|
    CN1218074A|1997-11-20|1999-06-02|波利法尔特有限公司|Bituminous compositions prepared with process treated vulcanized rubbers|
    DE9403628U1|1994-03-04|1994-05-19|Bredemeyer Joerg|Asphalt road surface with plastic admixtures|
    CN102071613B|2011-01-26|2012-05-23|广东华盟路桥工程有限公司|Asphalt-treated permeable-baseconstruction process|
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    RU2543217C1|2013-09-27|2015-02-27|Открытое акционерное общество "Уфимский завод эластомерных материалов, изделий и конструкций"|Mastic composition and method of obtaining thereof|
    US10472487B2|2015-12-30|2019-11-12|Greenmantra Recycling Technologies Ltd.|Reactor for continuously treating polymeric material|
    BR112018068992A2|2016-03-24|2019-01-22|Greenmantra Recycling Tech Ltd|method to form a wax|
    WO2018058257A1|2016-09-29|2018-04-05|Greenmantra Recycling Technologies Ltd.|Reactor for treating polystyrene material|
    RU2656486C1|2017-09-22|2018-06-05|Общество с ограниченной ответственностью "Энгельсский завод изоляционных материалов"|Method of producing insulation composition |
    CN109294610A|2018-11-08|2019-02-01|攀钢集团攀枝花钢钒有限公司|For the Production Process for Modified Pitch and device of high QI and high TI tar stock|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    PL1975177416A|PL101436B1|1975-01-19|1975-01-19|METHOD OF MAKING MODIFIED ROAD ASPHALT|
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