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- W48989738 abstract "Four fractions representing chemical types present in the original coal were separated from a Victorian brown coal solubilised by reacting with phenol in the presence of para toluene sulphonic acid catalyst. These fractions, plus a whole coal sample, were each reacted separately with tetralin in a nitrogen atmosphere for 4h at 450°C . Three products were recovered from the reaction: a solvent-range product (material derived from the coal having the same boiling point range as the tetralin solvent) a liquid bottoms product with boiling point greater than the solvent, and a solid residue. The structural features of the bottoms product and the residue from the different reactions were determined from elemental and spectroscopic analysis. It was shown that the yield of the various products depended markedly on chemical structure within the coal. However, the composition of the bottoms product did not depend on the chemical structure of the original material. The dissolution of brown coal in Tetralin was best described by a free radical reaction involving the destruction of oxygen functional groups in the coal material by hydrogen transfer from the solvent. Condensation of aromatic coal liquids to a solid carbon-rich condensed material was also shown to occur under the reaction conditions." @default.
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- W48989738 date "1980-10-14" @default.
- W48989738 modified "2023-09-24" @default.
- W48989738 title "The Effect of Coal Structure on the Dissolution of Brown Coal in Tetralin" @default.
- W48989738 doi "https://doi.org/10.1021/bk-1980-0139.ch013" @default.
- W48989738 hasPublicationYear "1980" @default.
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