GB487053A - Improvements in or relating to aqueous dispersions of bituminous materials and methods of making such dispersions - Google Patents

Improvements in or relating to aqueous dispersions of bituminous materials and methods of making such dispersions

Info

Publication number
GB487053A
GB487053A GB3425536A GB3425536A GB487053A GB 487053 A GB487053 A GB 487053A GB 3425536 A GB3425536 A GB 3425536A GB 3425536 A GB3425536 A GB 3425536A GB 487053 A GB487053 A GB 487053A
Authority
GB
United Kingdom
Prior art keywords
water
dispersion
pts
oil
bituminous material
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB3425536A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ERNEST RICHARD HATT
FRANK ERNEST MEW
JOSEPH WILLIAM HARPER
Colcon Ltd
Original Assignee
ERNEST RICHARD HATT
FRANK ERNEST MEW
JOSEPH WILLIAM HARPER
Dussek Bitumen and Taroleum Ltd
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 ERNEST RICHARD HATT, FRANK ERNEST MEW, JOSEPH WILLIAM HARPER, Dussek Bitumen and Taroleum Ltd filed Critical ERNEST RICHARD HATT
Priority to GB3425536A priority Critical patent/GB487053A/en
Publication of GB487053A publication Critical patent/GB487053A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C08L95/005—Aqueous compositions, e.g. emulsions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Liquid Carbonaceous Fuels (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Working-Up Tar And Pitch (AREA)

Abstract

Aqueous dispersions of bituminous materials, e.g. crude petroleum oils, fuel oils or fractions, distillates or residues obtained from such oils, having high viscosities are obtained by mixing the bituminous material, prior to dispersion, with water carried in a water-in-oil emulsion without the addition prior to this mixing operation of water-soluble substances either in the water-in-oil emulsion or separately. The oil used for the water-in-oil emulsion must be capable of dissolving the bituminous material and is preferably less viscous. It should also be neutral so that it will not react with emulsifying agents used to obtain the aqueous dispersion. Paraffin is a suitable oil, and water is dispersed therein by a water-insoluble agent such as aluminium stearate or oleate. Preferably after the bituminous material has been admixed with the water-in-oil emulsion, part or substantially the whole of the water is removed by evaporation prior to dispersion in water. This treatment is stated to redistribute the water-soluble bodies contained naturally in the bituminous materials in substantially smaller particles, so that on dispersion in water they increase the water-absorption of the bituminous material and hence its viscosity. Increase in viscosity is also obtained by better mixing of the bituminous material with the water-in-oil dispersion. According to examples, (1) 99 pts. of bitumen of 230 penetration at 25 DEG C. were mixed for 30 minutes with 1 pt. of a water-in-oil emulsion consisting of 2 pts. distilled water, 2 pts. paraffin oil and 1 pt. aluminium stearate. This mixture at 105 DEG C. was dispersed in water at 97 DEG C. containing 1 per cent oleine and a slight excess of caustic soda in a homogenizer driven at 8,000 r.p.m. with a gap of 0,01 inch. The dispersion contained 55-60 per cent of bituminous material. (2) A similar dispersion was obtained from 97,6 pts. of bitumen and 2,4 pts. of a water-in-oil emulsion consisting of 6 pts. distilled water, 5 pts. paraffin oil and 1 pt. aluminium stearate. (3) The mixture of bituminous material and emulsion obtained in example 1 was treated to evaporate off the water prior to the final dispersion. This treatment produced a marked increase in viscosity. Specification 389,810 is referred to.
GB3425536A 1936-12-14 1936-12-14 Improvements in or relating to aqueous dispersions of bituminous materials and methods of making such dispersions Expired GB487053A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3425536A GB487053A (en) 1936-12-14 1936-12-14 Improvements in or relating to aqueous dispersions of bituminous materials and methods of making such dispersions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3425536A GB487053A (en) 1936-12-14 1936-12-14 Improvements in or relating to aqueous dispersions of bituminous materials and methods of making such dispersions

Publications (1)

Publication Number Publication Date
GB487053A true GB487053A (en) 1938-06-14

Family

ID=10363351

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3425536A Expired GB487053A (en) 1936-12-14 1936-12-14 Improvements in or relating to aqueous dispersions of bituminous materials and methods of making such dispersions

Country Status (1)

Country Link
GB (1) GB487053A (en)

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