Abstract
In this paper the use of electroacoustic techniques involving the application of a sonic field and the detection of an electric field, for monitoring coalescence of water droplets in non-polar media will be discussed. This technique was used to evaluate the rate and extent of dewatering in oil continuous emulsions when surface active chemicals were added. The results showed that a combination of an oil soluble demulsifier and water soluble surfactant was substantially more effective in causing droplet coalesence than the individual components. An explanation for these findings were based on studies of time-dependent interfacial tensions at the oil/water interface and electrokinetic properties. The results indicated that a direct relationship exists between the adsorption behavior at the oil/water interface (apparent rate of spreading) and emulsion stability.
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© 1991 Springer Science+Business Media New York
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Isaacs, E.E., Huang, H., Chow, R.S., Babchin, A.J. (1991). Coalescence Behavior of Water-in-Oil Emulsions. In: Sharma, M.K., Sharma, G.D. (eds) Particle Technology and Surface Phenomena in Minerals and Petroleum. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-0617-5_11
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DOI: https://doi.org/10.1007/978-1-4899-0617-5_11
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