Abstract
AlCl 3-based ionic liquids (ILs) supported on silica and MCM-41 have been used for disproportionation and dealkylation of dodecylbenzene (DDB) at low reaction temperature. AlCl 3-based ionic liquids supported on MCM-41 were highly active for the conversion of DDB. Up to 55 mol% conversion and selectivity to benzene at 120 °C after 2 h reaction time were found for DDB transformation. Yield ratios between didodecylbenzenes and benzene are lower than 1 over such AlCl 3-based ionic liquids supported on MCM-41. That means a part of the 1-dodecylbenzene is catalytically dealkylated and not disproportionated. An induction period has been found for such a catalyst. The catalytic dealkylation of DDB requires a high density of very strong Lewis acid sites. A detrimental influence of n-decane (used as solvent) on DDB conversion was observed. The presence of an increased amount of naphthalene in the initial reaction mixture led to a strong decrease of selectivity towards didodecylbenzenes in favor of selectivity for benzene and formation of dodecylnaphthalene.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
