INDIVIDUAL COMPOSITION OF THE WATER-SOLUBLE POLYCARBOXYLIC ACIDS OBTAINED BY THE OXIDATION OF HUMIC COALS.

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作者：
Rumyantseva, Z.A.
Gartsman, B.B.
Grishin, N.N.
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来源：
Solid Fuel Chemistry | 1979年 / 13卷 / 03期
关键词：
HUMIC COAL - POLYCARBOXYLIC ACIDS;
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摘要：
In the reported experiments, the individual composition of the water-soluble polycarboxylic acids has been studied by mass spectrometry and chromato-mass spectrometry. The material investigated consisted of the water-soluble polycarboxylic acids from Central Asian humic coals: the fusinitic brown coal of Angren deposit and the fusinitic-vitrinitic hard coal of the Fan-Yagnob deposit, and also the acids from the vitrinitic hard coal of the Kuzbass, taken for comparison. Analyses of the coals are given. The acids were obtained by oxidizing the coals with molecular oxygen in aqueous alkali under pressure at 260-270 degree C.
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页码：114 / 118
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