Oxidation of Lignite into Water-Soluble Organic Acids
- 1 January 1976
- journal article
- research article
- Published by Taylor & Francis in Energy Sources
- Vol. 3 (1) , 49-53
- https://doi.org/10.1080/00908317608945967
Abstract
A sample of North Dakota lignite is oxidized by an aqueous alkaline permanganate solution. Organic acids recovered account for 50% of the lignite used. In contrast to other coals or kerogens, practically no monocarboxylic acids, either normal or benzenoic, could be detected. On the other hand, normal dicar-boxylic acids and benzene di- and tricarboxylic acids have been found. These facts suggest that part of the lignite structure is composed of fused aromatic systems.Keywords
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