Guest molecules in coal. Third quarterly report, April 1-June 30, 1985
A well characterized Illinois No. 6 coal sample from the Illinois Basin Coal Sample program was reacted with the Potassium-Crown Ether reagent and a detailed fractionation procedure was followed during work-up of the reaction. 10% and 14% of coal are extractable in the first THF extraction. (The first THF extraction corresponds to extraction of the alkaline residue after reaction quench). 27% and 52% of coal are aqueous alkali soluble after third and fourth K-CE treatments respectively. 15% and 13% of coal are extractable in the second THF extraction (the second THF extraction corresponds to extraction of the acidified residue after the alkali solubilization step). IR H NMR and TC NMR analysis were performed on the various fractions. The THF extracts contain predominantly aliphatic-type material. The THF-1 extract was composed of long-chain polymethylenes which presumably is attached to a aromatic ring system. 5 figs., 2 tabs.
- Research Organization:
- Purdue Univ., Lafayette, IN (USA). Lab. of Renewable Resources Engineering
- DOE Contract Number:
- FG22-84PC70792
- OSTI ID:
- 6150789
- Report Number(s):
- DOE/PC/70792-T4; ON: DE86004823
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
010407 -- Coal & Coal Products-- Solvent Extraction-- (-1987)
010600* -- Coal
Lignite
& Peat-- Properties & Composition
ALCOHOLS
ALKALI METALS
AROMATICS
CARBON 13
CARBON ISOTOPES
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
COAL EXTRACTS
CONDENSED AROMATICS
DATA
ELEMENTS
ENERGY SOURCES
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
EXTRACTION
FOSSIL FUELS
FRACTIONATION
FUELS
FURANS
GLYCOLS
HETEROCYCLIC COMPOUNDS
HYDROGEN 1
HYDROGEN ISOTOPES
HYDROXY COMPOUNDS
INFORMATION
INFRARED SPECTRA
ISOTOPES
LIGHT NUCLEI
MAGNETIC RESONANCE
MASS SPECTROSCOPY
MATERIALS
METALS
NMR SPECTRA
NUCLEAR MAGNETIC RESONANCE
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
ORGANIC POLYMERS
POLYETHYLENE GLYCOLS
POLYMERS
POTASSIUM
RESEARCH PROGRAMS
RESONANCE
SEPARATION PROCESSES
SOLVENT EXTRACTION
SPECTRA
SPECTROSCOPY
STABLE ISOTOPES
STRUCTURAL CHEMICAL ANALYSIS
TETRAHYDROFURAN