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Quantitative FT 13C n.m.r. of solvent-refined coals using sym-triazine as solvent

โœ Scribed by Kaizaburo Saito; Richard J. Baltisberger; Virgil I. Stenberg; Neil F. Woolsey

Publisher
Elsevier Science
Year
1981
Tongue
English
Weight
546 KB
Volume
60
Category
Article
ISSN
0016-2361

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โœฆ Synopsis

Aromaticities

(f,) determined for several solvent-refined coals (SRC) by 13C n.m.r. in sym-triazine solution and by the Brown and Ladner 'H n.m.r. technique have been found to be the same within

๐Ÿ“œ SIMILAR VOLUMES

Evaluation of solvents for carbon-13 n.m
Evaluation of solvents for carbon-13 n.m.r. analysis of solvent-refined coals. sym-Triazine a new carbon-13 n.m.r. solvent
โœ Kaizaburo Saito; Richard J. Baltisberger; Kenneth J. Klabunde; Virgil I. Stenber ๐Ÿ“‚ Article ๐Ÿ“… 1979 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 409 KB

Solvent-refined lignite (SRL) and bituminous coals (SRC) are only partially soluble in good standard carbon-13 n.m.r. solvents. A survey of other possible solvents for SRLs and SRCs showed thatsymtriazine at 86ยฐC solvated SR L as well as pyridine, but did not absorb in the regions of interest (5-60

Distribution of aliphatic and aromatic c
Distribution of aliphatic and aromatic carbons in H-Coal liquids by quantitative 13C FT-n.m.r. spectroscopy
โœ Joseph T. Joseph; John L. Wong ๐Ÿ“‚ Article ๐Ÿ“… 1980 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 578 KB

Three H-Coal liquids, ASO, ASB, and VSO, have been characterized by quantitative FT-n.m.r. spectroscopy. FT-parameters were chosen to allow determination of aromatic:aliphatic carbon ratios to within 1% and 2% error of the theoretical and the absolute number of aromatic and aliphatic carbons in a si