Comparative evaluation of some methods of investigations of the composition of hydroxyethylated alkylphenols

Journal Article · Tue Nov 10 00:00:00 EST 1987 · J. Appl. Chem. USSR (Engl. Transl.); (United States)

OSTI ID:5174171

Fabrichnaya, A L; Rubanov, V E; Tavrin, A E

Hydroxyethylated alkylphenols (HEAP/sub n/), which are nonionogenic surfactants, are used in the petroleum industry for increasing the extraction of oil. An attempt was made in this study to use methods of column fractionation, turbidimetric titration (TT), and gel permeation chromatography (GPC) for determining the molecular inhomogeneity of HEAP/sub n/ (n = 10) characterized by the molecular-weight distribution (MWD). The study of the MWD of HEAP by different methods showed that as a function of the problems actually posed, all of the methods can be used for this purpose. For operational control of the molecular and structural inhomogeneities in the preparation of HEAP, it is desirable to use such methods as GPC and TT. The preference which should be given to GPC due to its rapidity and the volume of the information obtained is neutralized by the difficulty in procuring the instruments. For this reason, the availability and simplicity of the apparatus used is a favorable circumstance for the use of TT.

• OSTI ID: 5174171
• Journal Information: J. Appl. Chem. USSR (Engl. Transl.); (United States), Vol. 60:5; Other Information: Translated from Zh. Prikl. Khim.; 60: No. 5, 1139-1143(May 1987)
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
DISPLACEMENT FLUIDS
FRACTIONATION
GEL PERMEATION CHROMATOGRAPHY
MOLECULAR WEIGHT
TITRATION
OIL WELLS
WATERFLOODING
PHENOLS
ALKYLATION
CHEMICAL COMPOSITION
COMPARATIVE EVALUATIONS
HYDROXYLATION
QUANTITATIVE CHEMICAL ANALYSIS
SURFACTANTS
AROMATICS
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
CHROMATOGRAPHY
FLUID INJECTION
FLUIDS
HYDROXY COMPOUNDS
ORGANIC COMPOUNDS
SEPARATION PROCESSES
WELLS
020300* - Petroleum- Drilling & Production
400102 - Chemical & Spectral Procedures
400105 - Separation Procedures