Formation of middle-phase microemulsions in multicomponent systems containing petrostep-465 and ethoxylated tall oils

Journal Article · Tue Jun 01 00:00:00 EDT 1982 · J. Colloid Interface Sci.; (United States)

DOI:https://doi.org/10.1016/0021-9797(82)90343-5· OSTI ID:5571195

Magid, L J

The range of salinities over which certain Petrostep-465/ethoxylated tall oil/cosurfactant/hydrocarbon/brine systems form middle-phase microemulsions was determined. The presence of the nonionic surfactant, in cases where n-decane is the hydrocarbon and 2-butanol is the cosurfactant, increases the optimal salinity of the system. Some broadening of the salinity range over which low interfacial tensions are observed is also found. Phase behavior for systems containing P-465 as the only surfactant shows order of mixing effects.

• Research Organization: Oak Ridge National Lab., TN
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 5571195
• Journal Information: J. Colloid Interface Sci.; (United States), Vol. 87:2
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
MICROEMULSIONS
CHEMICAL PROPERTIES
OIL WELLS
MICROEMULSION FLOODING
BRINES
BUTANOLS
DECANE
ENHANCED RECOVERY
MIXING
OPTIMIZATION
PETROLEUM
PHASE STUDIES
SALINITY
SURFACE TENSION
SURFACTANTS
TALL OIL
ALCOHOLS
ALKANES
COLLOIDS
DISPERSIONS
EMULSIONS
ENERGY SOURCES
FLUID INJECTION
FOSSIL FUELS
FUELS
HYDROCARBONS
HYDROXY COMPOUNDS
MISCIBLE-PHASE DISPLACEMENT
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
RECOVERY
SURFACE PROPERTIES
WELLS
023000* - Petroleum- Properties & Composition
400301 - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)