Premium
Tar sand extractions with microemulsions: I‐the dissolution of light hydrocarbons by microemulsions using 2‐butoxyethanol and diethylmethylamine as cosurfactants
Author(s) -
Desnoyers Jacques E.,
Quirion François,
HÉTu Daniel,
Perron GÉRald
Publication year - 1983
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450610509
Subject(s) - microemulsion , chemistry , bromide , pulmonary surfactant , dissolution , butanol , chromatography , phase (matter) , organic chemistry , ionic bonding , n butanol , chemical engineering , ethanol , ion , biochemistry , engineering
For oil sand extractions with microemulsions it is important to disperse large quantities of light hydrocarbons in an aqueous medium. Fundamental studies on the properties of 2‐butoxyethanol (BE) and diethylmethylamine (Et 2 McN) in water suggest that these two liquids could be more effective cosurfactants than the usual alcohols used for this purpose. The phase diagrams of microemulsions using BE and Et 2 MeN as cosurfactants, combined with typical ionic and non‐ionic surfactants and typical aliphatic and aromatic hydrocarbons, were therefore investigated and compared with microemulsions based on n‐butanol. Although the phase diagrams depend significantly on the nature of the surfactant and of the oil, the monophasic region generally increases with the cosurfactant in the order n‐butanol < Et 2 McN < BE. With the active mixture BE‐cetyltrimethylammonium bromide, temperature has little effect on the phase diagram and NaCl generally destabilizes the microemulsion.