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Emulsion micellar

The term microemulsion has been disputed by a number of authors. A consensus is slowly appearing although some authors prefer the terms transparent emulsion, micellar emulsion, or swollen micellar emulsion. As Rosano and Clausse... [Pg.198]

Microemulsions (monomer-swollen micellar solution, micellar emulsions, or spontaneous transparent emulsions) are dispersions of oil in water made with emulsifier and coemulsifier molecules. In many respects they are small-scale versions of emulsions. They are homogeneous on a macroscopic scale but heter-... [Pg.17]

Microemulsion, or micellar/emulsion, flooding an augmented waterflooding technique in which a surfactant system is injected in order to enhance oil displacement toward producing wells. [Pg.443]

See Emulsion. In enhanced oil recovery nomenclature, the term macroemulsion is employed sometimes to identify emulsions having droplet sizes greater than some specified value and sometimes simply to distinguish an emulsion from the microemulsion or micellar emulsion types. [Pg.382]

A special kind of stabilized emulsion in which the dispersed droplets are extremely small (<100 nm) and the emulsion is thermodynamically stable. These emulsions are transparent and can form spontaneously. In some usage a lower size-limit of about 10 nm is implied in addition to the upper limit see also Micellar Emulsion. In some usage the term microemulsion is reserved for a Winsor type IV system (water, oil, and surfactants all in a single phase). See also Winsor Type Emulsions. [Pg.383]

Micellar Emulsion An emulsion that forms spontaneously and has extremely small droplet sizes (<10 nm). Such emulsions are thermodynamically stable and are sometimes referred to as microemulsions (q.v.). [Pg.396]

The potential of microemulsions in technological applications, however, has not been fully exploited. There are many established industrial activities effectively being carried out with emulsions, for instance polymerization reactions in micellar, emulsion, and miniemulsion environments. Technological aspects involved in this type of activity have been discussed in a series of review articles published by Capek [3-6], but the role of microemulsions has yet been restricted to academical investigations, of which works reported by Kaler et al. are a good example [7-10]. [Pg.412]

Schulman emphasized that micellar emulsions are systems in true equilibrium, it being proposed that the components of the surface films in these systems produce a negative interfacial tension at the hydrocarbon-water interface [172]. On mixing, a spontaneous interfacial area increase occurs until zero interfacial tension is attained. In Adamson s [173] model for micellar W/O emulsions, stability is accounted for by a balance of the Laplace pressure AP, related to the micellar radius r and interfacial tension y by... [Pg.520]


See other pages where Emulsion micellar is mentioned: [Pg.157]    [Pg.441]    [Pg.90]    [Pg.115]    [Pg.382]    [Pg.397]    [Pg.302]    [Pg.594]    [Pg.115]    [Pg.72]    [Pg.532]    [Pg.528]    [Pg.557]    [Pg.256]    [Pg.458]   
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See also in sourсe #XX -- [ Pg.515 ]

See also in sourсe #XX -- [ Pg.594 ]




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