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97/00147 Solubilization of Taiheiyo coal at mild conditions by the aid of super acid

Publisher: Elsevier Science
Year: 1997
Weight: 195 KB
Volume: 38
Category: Article
ISSN: 0140-6701
DOI: 10.1016/s0140-6701(97)89936-5

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## Trifluoromethanesulfonic acid (TFMS) was found to convert coal almost completely to pyridine-solubles in the presence of isopentane at 150°C in 3 h under autogenous pressure of 6.G6.8 MPa. The chemical structure of the benzene-soluble and THF-insoluble-pyridine-soluble fractions varied with the