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Inferences regarding the nature of solvent-refined coal (SRC)

โœ Scribed by David L. Wooton; Harry C. Dorn; Larry T. Taylor; William M. Coleman

Publisher
Elsevier Science
Year
1976
Tongue
English
Weight
335 KB
Volume
55
Category
Article
ISSN
0016-2361

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โœฆ Synopsis

Solvent-refined coal product has been subjected to numerous analytical techniques in an effort to ascertain its chemical nature.

Electron spin resonance, 13C and 'H nuclear magnetic resonance, and mass spectroscopy along with elemental and molecular weight analyses have been employed. High-performance liquid chromatography via gel permeation separates tetrahydrofuran-soluble SRC into several size fractions. Nuclearmagnetic-resonance data strongly suggest that hexamethylphosphoramide-soluble SRC is approximately 95% aromatic in character.

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A study has been undertaken to characterize the structural aspects of the solids that have been recovered from solvent refined coal (SRC-I). Both the mineral matter as well as the organic materials are characterized through the utilization of various analytical techniques: chemical analysis, X-ray t