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THE EFFECT OF PH AND BITUMINOUS DENSITY ON STABILIZATION OF BITUMEN-IN-WATER EMULSION

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Author(s): S. Hassan Firoozifar | Sanaz Foroutan | Sara Foroutan

Journal: Petroleum and Coal
ISSN 1337-7027

Volume: 52;
Issue: 1;
Start page: 31;
Date: 2010;
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Keywords: Emulsion | Bitumen | Stabilization | Creaming | Density.

ABSTRACT
Understanding the stability mechanism of bitumen-in-water emulsion directly affects its transport,storage and usage. In order to have a bitumen emulsion with high stability which covers all thenecessary requirements, we had focused our attention to the methods for stabilizing againstsettlement and creaming. Therefore, the stability of several emulsion prepared with different amountof solvent in the bituminous phase were investigated at different pH. All the necessary tests wereconducted on the samples to achieve the optimum condition in producing complete stable emulsions.Finally, we found that acidity of the water phase and density of the bituminous phase, which can beadjusted by addition of suitable solvents, are so important in emulsion stability.
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