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Synthesis of immobilized Brønsted acidic ionic liquid on silica gel as heterogeneous catalyst for esterification

Paper ID Volume ID Publish Year Pages File Format Full-Text
50521 46800 2011 4 PDF Available
Title
Synthesis of immobilized Brønsted acidic ionic liquid on silica gel as heterogeneous catalyst for esterification
Abstract

The Brønsted acidic ionic liquid 1-(propyl-3-sulfonate) vinylimidazolium hydrogen sulfate ([(CH2)3SO3HVIm]HSO4) was immobilized on the silica gel using tetraethoxysilane (TEOS) as silica source. The properties of samples were characterized by FT-IR, elemental analysis and TG. The results showed that [(CH2)3SO3HVIm]HSO4 had been successfully immobilized onto the silica gel, and the immobilized ionic liquid catalyst (IL/silica gel) had good thermal stability. Moreover, the IL/silica gel exhibited high catalytic activity for a series of esterification and could be separated from the reaction mixture easily. It also remained satisfactory catalytic activity for the synthesis of n-Butyl acetate after 7 times recycling.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideResearch Highlights►TEOS was used as silica source. ►Immobilized ionic liquid catalyst was prepared by chemical covalent bond. ►IL/silica gel exhibited high catalytic activity for a series of esterification. ►IL/silica gel exhibited excellent reusability.

Keywords
Esterification; Immobilized ionic liquid; Silica gel; 1-Vinylimidazole
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Synthesis of immobilized Brønsted acidic ionic liquid on silica gel as heterogeneous catalyst for esterification
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 12, Issue 5, 5 January 2011, Pages 353–356
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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