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標題: Isomerization of endo-tetrahydrodicyclopentadiene over clay-supported chloroaluminate ionic liquid catalysts
作者: Huang, M.Y.
Wu, J.C.
Shieu, F.S.
Lin, J.J.
關鍵字: Montmorillonite;Tetrahydrodicyclopentadiene;Chloroaluminate ionic;liquids;layered silicate nanocomposites;thermal/mechanical properties;mechanical-properties;solid catalysts;montmorillonite;hydrogenation;polystyrene;zeolites
Project: Journal of Molecular Catalysis a-Chemical
期刊/報告no:: Journal of Molecular Catalysis a-Chemical, Volume 315, Issue 1, Page(s) 69-75.
Various halide salts with different alkyl lengths were allowed to intercalate into the layer structure of sodium montmorillonite clay through an ion exchange reaction. Intercalation of 1-hexadecyl-3-methylimidazolium chloride, hexadecyltrimethylammonium bromide, dihexadecyldimethylammonium bromide, and tributylhexadecylphosphonium bromide could expand the spacing of the silicate layers from 12 to 37-41 angstrom (measured by X-ray diffraction). The modified clays were pretreated with the pyridine hydrochloride/AlCl(3) mixture and used for suitably supporting a chloroaluminate ionic liquid catalyst for the isomerization of endo-tetrahydrodicyclopentadiene into the corresponding exo-isomer. Nearly quantitative conversion to the desired product and nearly quantitative selectivity were observed for the newly developed clay-supported ionic liquid catalysts, which were proven to be recyclable. (C) 2009 Elsevier B.V. All rights reserved.
ISSN: 1381-1169
DOI: 10.1016/j.molcata.2009.09.002
Appears in Collections:工學院

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