๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Characterization of organic fractions in solvent-refined coal by quantitative n.m.r. spectroscopy

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


Publisher
Elsevier Science
Year
1978
Tongue
English
Weight
544 KB
Volume
57
Category
Article
ISSN
0016-2361

No coin nor oath required. For personal study only.


๐Ÿ“œ SIMILAR VOLUMES


Quantitative FT 13C n.m.r. of solvent-re
โœ Kaizaburo Saito; Richard J. Baltisberger; Virgil I. Stenberg; Neil F. Woolsey ๐Ÿ“‚ Article ๐Ÿ“… 1981 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 546 KB

## 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

Characterization of coals and coal oxida
โœ John R. Havens; Jack L. Koenig; Deborah Kuehn; Carol Rhoads; Alan Davis; Paul C. ๐Ÿ“‚ Article ๐Ÿ“… 1983 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 651 KB

## Magic-angle 13C n.m.r. spectra have been obtained for a series of vitrinite concentrates. Proper modification of the cross-polarization pulse sequence allows separation of protonated and nonprotonated carbon resonances. This technique is used to determine the relative fraction of nonprotonated

Distribution of aliphatic and aromatic c
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