Abstract
Coal tar pitch was fractionated by charge-transfer fractionation (CTF) with iodine as an electron acceptor. Chemical analyses of each fraction were made by means of flame thermionic detector gas chromatography (FTD-GC), FID-GC, and GC/MS. Results of CTF would indicate that basic nitrogen compounds (pyridine type) were concentrated in the component and interact strongly with iodine. On the other hand, neutral nitrogen compounds (pyrrole type) were not concentrated by CTF. The fractionation behavior of the aromatic hydrocarbons has been discussed
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