Average structures of petroleum pitch fractions by 1H13C n.m.r. spectroscopy
โ Scribed by Eric M. Dickinson
- Book ID
- 107755964
- Publisher
- Elsevier Science
- Year
- 1985
- Tongue
- English
- Weight
- 334 KB
- Volume
- 64
- Category
- Article
- ISSN
- 0016-2361
No coin nor oath required. For personal study only.
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Several petroleum-derived materials have been structurally characterized in terms of their hypothetical average molecules using a combination of 1 H and 13C n.m.r. spectroscopy. Steps were taken to ensure that reliable 13C n.m.r. data were obtained, including adding a relaxation agent, chromium acet
Several pitches, used to make high-grade cokes, are characterized by 13C and 'H n.m.r. spectroscopy. Average molecular parameters of solvent fractions of the pitches indicate distinct differences in molecular structure. Principal differences between A-240 petroleum and medium coal-tar pitches are co