A sample of whole Athabasca bitumen has been fractionated by preparative g.p.c. The weights of the fractions have been determined and their molecularweights measured by several methods. In contrast to previously published data, consistent results were obtained using different solvents (THF, benzene/
Distribution of nitrogen in fractions of Athabasca bitumen
โ Scribed by V.Nambi Aiyar; Otto H. Houwen; Frank W. Bachelor
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- English
- Weight
- 282 KB
- Volume
- 59
- Category
- Article
- ISSN
- 0016-2361
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
Reactions of resins, asphaltenes and model nitrogen compounds with acetic anhydride and with trifluoroacetic anhydride yield compounds which provide indications that the predominant nitrogen functional groups in resins and asphaltenes (from Athabasca bitumen) exist as imino groups of the carbazole-t
Infrared and chemical studies of the resin fraction isolated from Athabasca bitumen indicate that oxygen in these fractions exists predominantly as ester functions. Evidence for this was obtained from hydrolysis, acetylation and methylation reactions.
The plasticizing effectiveness of hydrocarbons in Athabasca bitumen (i.e. the extent of reduction in viscosity of the bitumen caused by hydrocarbons) depends on the molecular structure of the hydrocarbon and the molecular interaction between hydrocarbon and bitumen. High molecular weight. branching,