Abstract
A discussion is presented of the isolation of n-pentane asphaltenes from a Wilmington, Calif. , crude oil and the separation of the asphaltene into fractions of acids, bases, neutral nitrogen compounds, saturated hydrocarbons, and aromatic hydrocarbons, using ion exchange chromatography, coordination chromatography, and adsorption chromatography. The major compound types in the acid fraction are identified by infrared spectrometry. Molecular weights of compound types are estimated by vapor-phase osmometry, mass spectrometry, and quantitative infrared spectrometry.
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CITATION STYLE
McKay, J. F., Amend, P. J., Cogswell, T. E., Harnsberger, P. M., Latham, D. R., & Erickson, R. B. (1977). PETROLEUM ASPHALTENES - CHEMISTRY AND COMPOSITION. In American Chemical Society, Division of Petroleum Chemistry, Preprints (Vol. 22, pp. 708–715). https://doi.org/10.1021/ba-1978-0170.ch009
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