Email RIS file
Bookmark
Report an Issue

Chemistry and structure of coal-derived asphaltenes, Phase I. Quarterly progress report, January--March 1976. [4 refs] [electronic resource].

Published
Washington, D.C : United States. Energy Research and Development Administration, 1976.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
Pages: 20 : digital, PDF file
Additional Creators
University of Southern California, United States. Energy Research and Development Administration, and United States. Department of Energy. Office of Scientific and Technical Information
Access Online

Availability

I Want It
I Want It

Finding items...

Restrictions on Access
Free-to-read Unrestricted online access
Summary
Coal liquids have been separated by solvent fractionation into three crude fractions: pentane-soluble (gas oil and resin), pentane-insoluble and benzene-soluble (crude asphaltene), and benzene insoluble (carbene and carboid). The crude asphaltene fractions have been further separated by solvent elution chromatography on silica gel into two major fractions (benzene eluted and diethyl ether eluted). The great majority of these materials were characterized as to elemental analyses, molecular weight, metal analyses, color intensity, NMR--hydrogen percentages by proton type, carbon aromaticity by x-ray diffraction, and infrared spectral analysis. The two major asphaltene fractions obtained from Synthoil by elution from silica gel with benzene and diethyl ether compare relatively well with respect to ultimate analysis with the two components isolated by Sternberg et al. by treatment of Synthoil asphaltenes dissolved in toluene with dry HCl. If these components prove to be similar, then silica gel chromatography offers a mild, chlorine-free procedure for separating asphaltenes into acidic and basic components.
Report Numbers
E 1.99:fe-2031-3
fe-2031-3
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
01/01/1976.
"fe-2031-3"
Schwager, I.; Yen, T. F.
Funding Information
EX-76-C-01-2031
View MARC record | catkey: 13844707