Composition of humic substances in oxidized brown coal from Mongolia

Autor: A. V. Rokhin, L. N. Novikova, Barnasan Purevsuren, T. I. Vakul’skaya, R. Erdenechimeg, D. F. Kushnarev
Rok vydání: 2010
Předmět:
Zdroj: Solid Fuel Chemistry. 44:78-88
ISSN: 1934-8029
0361-5219
DOI: 10.3103/s0361521910020023
Popis: The composition and properties of humic substances and residual coals separated from naturally or artificially oxidized (with 20% nitric acid, 30% hydrogen peroxide, and 4.8% potassium permanganate) brown coal samples with various initial degrees of humification from the Ulaan Ovoo deposit were studied using elemental, structural, and spectroscopic analysis (IR, UV, 13C NMR, and EPR spectroscopy).
Databáze: OpenAIRE