SEPARATION AND CHARACTERIZATION OF SYNTHOIL ASPHALTENE BY GEL-PERMEATION CHROMATOGRAPHY AND PROTON NUCLEAR MAGNETIC-RESONANCE SPECTROMETRY

被引：12

作者：

SCHWAGER, I ^{[1
]}

KWAN, JT ^{[1
]}

LEE, WC ^{[1
]}

MENG, S ^{[1
]}

YEN, TF ^{[1
]}

机构：

[1] UNIV SO CALIF,DEPT CHEM ENGN,LOS ANGELES,CA 90007

来源：

ANALYTICAL CHEMISTRY | 1979年 / 51卷 / 11期

关键词：

D O I：

10.1021/ac50047a045

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Synthoil has been fractionated on a preparative scale by gel-permeation chromatography on styrene-divinyl benzene packing (Bio-Beads S-X8). Five fractions were eluted in the order of high to low molecular weights:[formula omitted] Aromatic molecules with large saturated substituents elute before smaller, more aromatic molecules. Structural characterization of the fractions was carried out using a modified Brown-Ladner proton nuclear magnetic resonance analysis. A plot of molecular weight vs. elution volumes for standards, and Synthoil coal liquid fractions affords a relatively smooth curve which may be used to determine approximate molecular weights of coal liquid products. © 1979, American Chemical Society. All rights reserved.

引用

页码：1803 / 1806

页数：4

共 23 条

[1]

ALTGELT KH, 1965, PREPR DIV PET CHEM A, V10, P29

[2]

BROWN JK, 1960, FUEL, V39, P87

[3] PREPARATIVE GEL-PERMEATION CHROMATOGRAPHIC-SEPARATION OF SOLVENT REFINED COAL [J].