Improved procedure for extraction of aromatic bases from synfuel materials. [Aromatic amines; azaarenes]
The present study was undertaken to evaluate the conventional aqueous acidbase extraction procedures and to explore alternate conditions for optimizing recovery of aromatic bases. For four procedures the recoveries were measured for 13 components in a mixture containing phenols, polynuclear aromatic hydrocarbons(PAH), primary aromatic amines (PAA), and azaarenes (AA) representative of the types of compounds found in synfuel materials. The results demonstrated that recoveries of hydrophobic 3 to 5 ring PAA and AA can be dramatically increased by using methanol as a cosolvent. The modified procedure is highly efficient for extraction of larger PAA and AA, and does not lead to emulsions when extracting samples of coal-derived materials. 2 figures, 2 tables.
- Research Organization:
- Argonne National Lab., IL (USA)
- DOE Contract Number:
- W-31-109-ENG-38
- OSTI ID:
- 6337326
- Report Number(s):
- CONF-811160-5; ON: DE83007681
- Resource Relation:
- Conference: US Department of Energy workshop on chemical characterization of hazardous substances in synfuels, Seattle, WA, USA, 4 Nov 1981
- Country of Publication:
- United States
- Language:
- English
Similar Records
Multidisciplinary approach to identify, characterize and minimize, potential health and environmental problems associated with chemically complex mixtures: a case study
Fluorescence detection and identification of nitro derivatives of polynuclear aromatic hydrocarbons by on-column catalytic reduction to aromatic amines
Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
01 COAL, LIGNITE, AND PEAT
10 SYNTHETIC FUELS
AMINES
SOLVENT EXTRACTION
AROMATICS
HYDROCHLORIC ACID
SOLVENT PROPERTIES
METHANOL
METHYLENE CHLORIDE
PHENOLS
POLYCYCLIC AROMATIC HYDROCARBONS
SODIUM HYDROXIDES
SYNTHETIC FUELS
FRACTIONATION
EXPERIMENTAL DATA
PH VALUE
ALCOHOLS
ALKALI METAL COMPOUNDS
DATA
EXTRACTION
FUELS
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROXIDES
HYDROXY COMPOUNDS
INFORMATION
INORGANIC ACIDS
NUMERICAL DATA
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXYGEN COMPOUNDS
SEPARATION PROCESSES
SODIUM COMPOUNDS
400105* - Separation Procedures
010600 - Coal
Lignite
& Peat- Properties & Composition
090110 - Hydrocarbon Fuels- Properties- (1979-1989)