Production of dimethyl carbonate from ethylene carbonate and methanol using immobilized ionic liquids on MCM-41
作者： Dong-Woo Kim , Dong-Ok Lim , Deug-Hee Cho , Jae-Cheon Koh , Dae-Won Park
DOI: 10.1016/J.CATTOD.2010.11.010
关键词:
摘要: Ionic liquids on ordered mesoporous silica were prepared and their catalytic performance in the synthesis of dimethyl carbonate (DMC) was investigated. The ionic immobilized chloropropyl-functionalized MCM-41 (CP-MS41) through quaternization trialkylamines. supported proven to be an effective heterogeneous catalyst for DMC from transesterification ethylene (EC) with methanol. quaternary ammonium salt (QCl-MS41) catalysts longer alkyl chains showed higher EC conversion turnover number (TON). Higher temperatures reaction times favorable reactivity QCl-MS41. However, carbon dioxide pressure a maximum activity. can reused reactions up three consecutive runs only slight decrease
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