Article 470 – World Congress on Emulsion – Lyon, October 2006

Taylor-made bitumen emulsions manufacturing using the High Internal Phase Ratio method

Article 470 – World Congress on Emulsion – Lyon, October 2006

D. Lesueur, L. Herrero, J. Hurtado, J. J. Potti and M. A. Rodríguez-Valverde Polo de Emulsiones - Eurovia - Pinto - España

Article 470 – World Congress on Emulsion – Lyon, October 2006

The High Internal Phase Ratio method

HIPR emulsion

dispersed phase content 75-95 wt.%

The dispersed phase is very viscousviscosity superior to 1 Pa.s

Adequate aqueous phase

Moderate agitation

Article 470 – World Congress on Emulsion – Lyon, October 2006

The High Internal Phase Ratio method applied to bitumen

HIPR emulsion

dispersed phase content 75-95 wt.%

The dispersed phase is very viscousviscosity superior to 1 Pa.s

Adequate aqueous phase

Moderate agitation

Bitumen at 90ºC

Article 470 – World Congress on Emulsion – Lyon, October 2006

The emulsifying agent content controls particle size

0.1

1

10

100

0 5 10 15 20 25 30 35 40 45

emulsifier in the aqueous phase (wt.%)

med

ian

diam

eter

(mic

rons

)

Surf. ASurf. B

Entering the nano-world!

Article 470 – World Congress on Emulsion – Lyon, October 2006

0

2

4

6

8

10

12

14

16

18

20

0.1 1 10 100 1000

particle diameter (microns)

volu

me

frac

tion

(%)

The HIPR method allows to manufacture taylor-made fine bitumen emulsions

HIPR

Conventional