Abstract
Proximate and ultimate analysis and 13C NMR and IR spectroscopy were used to characterize the samples of brown coal from the Tyulgan deposit of the South Ural basin (TBC), the naturally oxidized form of brown coal from the Tisulsky deposit of the Kansk-Achinsk basin (TBCO), and fulvic acids obtained from it. The component composition of bitumen was studied using gas chromatography–mass spectrometry (GC–MS) analysis. Data of a study on the phytostimulating activity of fulvic acids and their mixtures with the saponifiable component of the resin of extraction bitumens in relation to wheat seeds of the Iren variety were presented. It was shown that the use of the saponifiable component of bitumen resins contributed to an increase in the phytostimulating activity.
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Funding
This work was carried out within the framework of a state contract of the Institute of Coal Chemistry and Material Science, Federal Research Center of Coal and Coal Chemistry, Siberian Branch, Russian Academy of Sciences (project no. 121031500124-2) using the equipment of the Center for Collective Use of the Federal Research Center of Coal and Coal Chemistry, Siberian Branch, Russian Academy of Sciences.
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Translated by V. Makhlyarchuk
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Shpakodraev, K.M., Zherebtsov, S.I., Malyshenko, N.V. et al. Composition and Properties of Extraction Resins of Bitumens and Fulvic Acids of Brown Coal. Solid Fuel Chem. 57, 307–313 (2023). https://doi.org/10.3103/S0361521923050063
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DOI: https://doi.org/10.3103/S0361521923050063