WO2014001385A1 - Composition d'asphalte - Google Patents

Composition d'asphalte Download PDF

Info

Publication number
WO2014001385A1
WO2014001385A1 PCT/EP2013/063371 EP2013063371W WO2014001385A1 WO 2014001385 A1 WO2014001385 A1 WO 2014001385A1 EP 2013063371 W EP2013063371 W EP 2013063371W WO 2014001385 A1 WO2014001385 A1 WO 2014001385A1
Authority
WO
WIPO (PCT)
Prior art keywords
sulphur
bitumen
asphalt
anionic clay
asphalt composition
Prior art date
Application number
PCT/EP2013/063371
Other languages
English (en)
Inventor
Sunil Ashtekar
Chantal Soubigou
Govind Wagle
Original Assignee
Shell Internationale Research Maatschappij B.V.
Shell Oil Company
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shell Internationale Research Maatschappij B.V., Shell Oil Company filed Critical Shell Internationale Research Maatschappij B.V.
Publication of WO2014001385A1 publication Critical patent/WO2014001385A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/06—Sulfur
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C08K3/346—Clay
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2555/00—Characteristics of bituminous mixtures
    • C08L2555/20—Mixtures of bitumen and aggregate defined by their production temperatures, e.g. production of asphalt for road or pavement applications
    • C08L2555/22—Asphalt produced above 140°C, e.g. hot melt asphalt
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2555/00—Characteristics of bituminous mixtures
    • C08L2555/40—Mixtures based upon bitumen or asphalt containing functional additives
    • C08L2555/50—Inorganic non-macromolecular ingredients
    • C08L2555/52—Aggregate, e.g. crushed stone, sand, gravel or cement
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2555/00—Characteristics of bituminous mixtures
    • C08L2555/40—Mixtures based upon bitumen or asphalt containing functional additives
    • C08L2555/50—Inorganic non-macromolecular ingredients
    • C08L2555/54—Sulfur or carbon black

Definitions

  • the use may comprise any of the methods described herein and/or may comprise incorporating sulphur pellets and/or a hydrotalcite anionic clay-containing bitumen composition described herein into a sulphur-containing asphalt composition.
  • the asphalt composition comprises at least 1 wt% of bitumen, based on the weight of the asphalt composition.
  • An asphalt composition comprising from about 1 wt% to about 10 wt% of bitumen is preferred, with a special preference for asphalt compositions comprising from about 3 wt % to about 7 wt % of bitumen, based on the weight of the asphalt composition.
  • blowing treatment may be conducted by means of a catalytic process.
  • the asphalt composition may comprise, based on the weight of the bitumen, at least 10 wt% sulphur,
  • the sulphur may be incorporated into the asphalt composition in the form of sulphur pellets.
  • Reference herein to pellets is to any type of sulphur material that has been cast from the molten state into some kind of regularly sized particle, for example flakes, slates or sphere-shaped sulphur such as prills, granules, nuggets and pastilles or half pea sized sulphur.
  • the sulphur pellets typically comprise from 50 to 100wt% of sulphur, based upon the weight of the sulphur pellets, preferably from 60wt% and most preferably from 70wt%; and typically to 99wt%, and preferably to 95wt% or to 100wt%. A more preferred range is from 60 to 100wt%.
  • These sulphur pellets may contain carbon black and, optionally, other ingredients, such as amyl acetate and wax.
  • Carbon black may be present in amounts up to 5%wt, based on the pellet, preferably up to 2%wt.
  • the content of carbon black in the sulphur pellet is at least 0.25%wt.
  • the content of other ingredients, such as amyl acetate and wax typically does not exceed an amount of 1.0%wt each.
  • wax When wax is present, it may be in the form of, for example, slack wax or wax derived from a Fischer- Tropsch process. Examples of suitable waxes for use herein are Sasobit (RTM) , a Fischer-Tropsch derived wax commercially available from Sasol, and SX100 wax, a
  • RTM Thiopave
  • the hydrotalcite anionic clay for use herein has a crystal structure which consists of positively charged layers, columns, etc., between which are anions and water molecules, and which are built up of specific
  • hydrotalcite anionic clays are pyroaurite, hydrotalcite, stichtite, reevesite, eardleyite, sjogrenite, mannaseite and barbertonite .
  • the main layers of these and many others generally synthetic, members of the group are built up of specific
  • Suitable trivalent N 3+ cations are Al 3+ , Mn 3+ , Fe 3+ , Co 3+ , Ni 3+ , Cr 3+ , Ga 3+ , B 3+ , trivalent rare earth metal cations such as La 3+ and Ce 3+ and combinations thereof.
  • Preferred is Al 3+ , combined or not with La 3+ and/or Ce 3+ .
  • Suitable A anions are N0 3 “ , OH “ , CI “ , Br “ , I “ , C0 3 2” , S0 4 2” , Si0 3 2” , Cr0 4 2” , HPO4 2” , Mn0 4 " , HGa0 3 2” , HV0 4 2” , C10 4 " , BO 3 2” , monocarboxylates , such as acetate, dicarboxylates , such as oxalate, alkyl sulphonates, such as lauryl sulphonate, and combinations thereof.
  • Preferred are CO 3 2" '
  • the polymer is a terpolymer formed from ethylene, alkyl acrylate and glycidyl methacrylate or glycidyl acrylate.
  • step (ii) of the process for manufacturing the present asphalt composition the aggregate is heated, preferably at a temperature of from 60 to 200°C,
  • the sulphur and the hydrotalcite anionic clay may be added together, i.e. both in step (i), step (ii) or step
  • the hot aggregate is mixed with the sulphur and the hydrotalcite anionic clay. Hot bitumen is then added to the hot aggregate-sulphur- anionic clay mixture. In a second embodiment, hot
  • the hydrotalcite anionic clay may be added separately.
  • the hydrotalcite anionic clay may be added to the bitumen in step (i) and the sulphur may be added in step ( iii ) .
  • sulphur may be added in the form of two types of sulphur pellets; a first type of sulphur pellet that comprises the anionic clay and a second type of sulphur pellet that does not comprise the anionic clay.
  • This has the advantage that the anionic clay are essentially concentrated in the first type of sulphur pellet and conventional sulphur pellets can be used to make up the rest of the sulphur requirement .
  • asphalt is prepared by a process according to the invention, and further comprising steps of:
  • the invention further provides an asphalt pavement prepared by the process according to the invention.
  • the temperature of compaction is desirably kept as low as possible in order to reduce hydrogen sulphide emissions. However, the temperature of compaction needs to be sufficiently high such that the voids content of the resulting asphalt is sufficiently low for the asphalt to be durable and water resistant .
  • Bituminous compositions were prepared according to the following procedure. Bitumen of penetration grade, 60/70 was pre-heated in an oven for 2 hours at 160°C. 28 g of this pre-heated bitumen was placed in a 3 neck round bottom flask followed by addition of 12 g of elemental sulphur granules (gassy granules, supplied by India Petro Chemicals Ltd) while maintaining the stirring rate of 1000 rpm. To test the effect of additive on H 2 S and SO 2 emissions, 0.18 g of linear alkyl benzene sulphonic acid modified Pural MG clay was added to the above mix which was maintained at 140°C and the stirring was continued for another 4 minutes.
  • a Drager "Multiwarn” H 2 S/SO 2 gas detector was connected to one of the necks of the round bottom flask containing the blend sample which was maintained at 140°C under a continuous stirring rate of 275 rpm. H 2 S and SO 2 emissions were measured. The results are shown in Table 3 below.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

La présente invention concerne une composition d'asphalte comprenant un agrégat, du bitume, du soufre et une argile anionique hydrotalcite, dans laquelle la teneur en argile anionique est de préférence située dans la plage allant de 0,05 à 10 % en poids, sur la base du poids du soufre. L'invention concerne également des procédés de préparation des compositions d'asphalte et de chaussées en asphalte. La présence de l'argile anionique hydrotalcite réduit significativement les émissions de vapeurs de H2S, de SO2 et de soufre à partir des compositions d'asphalte contenant du soufre.
PCT/EP2013/063371 2012-06-27 2013-06-26 Composition d'asphalte WO2014001385A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN2012000457 2012-06-27
INPCT/IN2012/000457 2012-06-27

Publications (1)

Publication Number Publication Date
WO2014001385A1 true WO2014001385A1 (fr) 2014-01-03

Family

ID=48703478

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2013/063371 WO2014001385A1 (fr) 2012-06-27 2013-06-26 Composition d'asphalte

Country Status (1)

Country Link
WO (1) WO2014001385A1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB316017A (en) * 1928-07-31 1929-07-25 John Tatham Hines Improvements in or relating to the making of roads, paths, and the like
GB1488071A (en) * 1974-03-18 1977-10-05 Chevron Res Sulphur-based asphalt-aggregate composition
US4458026A (en) 1982-06-02 1984-07-03 Union Carbide Corporation Catalysts for aldol condensations
EP0936232A1 (fr) * 1998-02-13 1999-08-18 The Goodyear Tire & Rubber Company Procédé de polymérisation en continu
WO2001012570A1 (fr) * 1999-08-11 2001-02-22 Akzo Nobel N.V. Corps contenant une argile anionique cristalline, façonnes et resistants a l'attrition
WO2003014231A1 (fr) * 2001-08-09 2003-02-20 Shell Canada Limited Additifs de soufre pour liants de revetement et leurs procedes de preparation
US20050287318A1 (en) * 2004-06-25 2005-12-29 Speer Drew V Method of removing sulfur odors from packages
WO2008024007A2 (fr) * 2006-08-25 2008-02-28 Zaklady Chemiczne 'siarkopol' Tarnobrzeg Sp Z O.O. Engrais soufré et procédé de fabrication d'engrais soufré en granulés
JP2009209184A (ja) * 2008-02-29 2009-09-17 Sanshin Chem Ind Co Ltd アスファルト組成物ならびに臭気の防止方法

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB316017A (en) * 1928-07-31 1929-07-25 John Tatham Hines Improvements in or relating to the making of roads, paths, and the like
GB1488071A (en) * 1974-03-18 1977-10-05 Chevron Res Sulphur-based asphalt-aggregate composition
US4458026A (en) 1982-06-02 1984-07-03 Union Carbide Corporation Catalysts for aldol condensations
EP0936232A1 (fr) * 1998-02-13 1999-08-18 The Goodyear Tire & Rubber Company Procédé de polymérisation en continu
WO2001012570A1 (fr) * 1999-08-11 2001-02-22 Akzo Nobel N.V. Corps contenant une argile anionique cristalline, façonnes et resistants a l'attrition
WO2003014231A1 (fr) * 2001-08-09 2003-02-20 Shell Canada Limited Additifs de soufre pour liants de revetement et leurs procedes de preparation
US20050287318A1 (en) * 2004-06-25 2005-12-29 Speer Drew V Method of removing sulfur odors from packages
WO2008024007A2 (fr) * 2006-08-25 2008-02-28 Zaklady Chemiczne 'siarkopol' Tarnobrzeg Sp Z O.O. Engrais soufré et procédé de fabrication d'engrais soufré en granulés
JP2009209184A (ja) * 2008-02-29 2009-09-17 Sanshin Chem Ind Co Ltd アスファルト組成物ならびに臭気の防止方法

Non-Patent Citations (13)

* Cited by examiner, † Cited by third party
Title
ACTA ACAD. ABOENSIS MATH. PHYS., vol. VII, 1933, pages 3
ANONYMOUS: "Galleon Brand Activated Bleaching Earth", 1 January 2013 (2013-01-01), pages 1 - 1, XP055051017, Retrieved from the Internet <URL:www.ashapura.com/mizusawa.htm> [retrieved on 20130124] *
CHEMISTRY LETTERS (JAPAN, 1973, pages 843
CLAYS AND CLAY MINERALS, vol. 23, 1975, pages 369
CLAYS AND CLAY MINERALS, vol. 28, 1980, pages 50
CLAYS AND CLAY MINERALS, vol. 30, 1982, pages 180 - 184
CLAYS AND CLAY MINERALS, vol. 34, 1986, pages 507
HELV. CHIM. ACTA, vol. 25, 1942, pages 106 - 137,555-569
J.AM.CERAM.SOC., vol. 42, no. 3, 1959, pages 121
MATERIALS CHEMISTRY AND PHYSICS, vol. 14, 1986, pages 569
MIN. MAG., vol. 39, 1973, pages 377 - 389
ROBERT A. SCHOONHEYDT ET AL: "PILLARED CLAYS AND PILLARED LAYERED SOLIDS (Technical Report)", PURE APPL. CHEM., VOL. 71, NO. 12, PP. 2367-2371, 1999., 1 January 1999 (1999-01-01), pages 2367 - 2371, XP055050859, Retrieved from the Internet <URL:http://pac.iupac.org/publications/pac/pdf/1999/pdf/7112x2367.pdf> [retrieved on 20130123] *
SHELL: "Introduction to Shell Thiopave", May 2010 (2010-05-01), pages 1 - 9, XP002594001, Retrieved from the Internet <URL:http://www-static.shell.com/static/sulphur/downloads/introduction_shell_thiopave.pdf> [retrieved on 20100727] *

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