Dodecylbenzene transformations: Dealkylation and disproportionation over immobilized ionic liquid catalysts
作者： Alice L. Petre , Wolfgang F. Hoelderich , Martin L. Gorbaty
DOI: 10.1016/J.APCATA.2009.04.047
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摘要: Abstract AlCl 3 -based ionic liquids (ILs) supported on silica and MCM-41 have been used for disproportionation dealkylation of dodecylbenzene (DDB) at low reaction temperature. were highly active the conversion DDB. Up to 55 mol% selectivity benzene 120 °C after 2 h time found DDB transformation. Yield ratios between didodecylbenzenes are lower than 1 over such MCM-41. That means a part 1-dodecylbenzene is catalytically dealkylated not disproportionated. An induction period has catalyst. The catalytic requires high density very strong Lewis acid sites. A detrimental influence n-decane (used as solvent) was observed. presence an increased amount naphthalene in initial mixture led decrease towards favor formation dodecylnaphthalene.
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