PREPARATION OF STABLE EMULSION USING DYNAMIC OR STATIC MIXERS

摘要

A process for preparing a hydrocarbon-in-water emulsion comprises the steps of: providing a substantially homogeneous solution of a liquid additive in water; mixing said solution with a hydrocarbon in a mixer so as to provide a first emulsion of hydrocarbon in water having a ratio by volume of hydrocarbon to water of at least about 90:10; adding additional additives to at least one of said mixer and said first emulsion; and diluting said emulsion with water so as to provide a final emulsion having a ratio by volume of hydrocarbon to water of less than 90:10. In accordance with the invention, gelling of additives such as surfactants is avoided and properties of the emulsion can be tailored to desired requirements.