CHEMICAL-CHANGES OF COAL MATTER AFTER TREATMENT WITH ETHYLENEDIAMINE

被引：3

作者：

CERNY, J

PAVLIKOVA, H

机构：

[1] Institute of Geotechnique, Czech Academy of Sciences, 182 09 Prague 8

来源：

FUEL PROCESSING TECHNOLOGY | 1991年 / 27卷 / 03期

关键词：

D O I：

10.1016/0378-3820(91)90055-H

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A severe chemical reaction of ethylenediamine (EDA) with subbituminous coal was found to proceed during Soxhlet extraction. The significant structural changes of coal matter after extraction at approximately 117-degrees-C are discussed based on results from thermogravimetry, IR and H-1 NMR spectroscopy measurements. Possible reaction paths are the following: reaction of EDA with carboxyls and esters to yield amides; cleavage of weak ether linkages in the coal structure. The EDA extract does not reflect the chemical composition and structure of coal due to the high content of nitrogen that is built into coal matter.

引用

页码：307 / 318

页数：12

共 17 条

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[2]

BROWN JK, 1959, FUEL, V38, P55

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