EVALUATION OF SOLVENTS FOR C-13 NMR ANALYSIS OF SOLVENT-REFINED COALS - SYM-TRIAZINE A NEW C-13 NMR SOLVENT

被引：5

作者：

SAITO, K

BALTISBERGER, RJ

KLABUNDE, KJ

STENBERG, VI

WOOLSEY, NF

机构：

[1] Department of Chemistry, The University of North Dakota, Grand Forks

来源：

FUEL | 1979年 / 58卷 / 04期

关键词：

D O I：

10.1016/0016-2361(79)90143-1

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Solvent-refined lignite (SRL) and bituminous coals (SRC) are only partially soluble in good standard carbon-13 n.m.r. solvents. A survey of other possible solvents for SRLs and SRCs showed that sym-triazine at 86 °C solvated SRL as well as pyridine, but did not absorb in the regions of interest (5-60 and 90-160 ppm relative to TMS). Model hydrocarbons, phenols and an alcohol in sym-triazine gave aromaticities (fa) accurate within the standard deviation (0.01 to 0.001) when proper FT carbon-13 techniques were used. An alkene and an aliphatic amine reacted with sym-triazine and gave inaccurate values of fa. © 1979.

引用

页码：315 / 317

页数：3

共 19 条

[1]

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[2]

BARTLE KD, 1975, CHEM IND-LONDON, P313

[3]

BARTUSKA VJ, 1976, AUG COAL CHEM WORKSH, P220

[4]

BROWN JK, 1960, FUEL, V39, P87