Abstract
Liquid-phase ozonolysis of asphaltenes from the semicoking tar of G17 coal was studied. In structural studies of asphaltenes, ozone is of particular interest as a specific agent cleaving double bonds [139]. Identification of low-molecular-weight (water-soluble) and high-molecular-weight (waterinsoluble) products of asphaltene ozonolysis by 1H and 13C NMR spectroscopy, gas chromatography3 mass spectrometry (GC3MS), gas3liquid (GC) and thin-layer (TLC) chromatography, UV/Vis spectroscopy, and ESR allows detailed characterization of the molecular structure of asphaltenes of various origins, which, in turn, is necessary for their efficient application. In this work we studied liquid-phase ozonolysis of asphaltenes from the semicoking tar of G17 coal.
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