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Ionic liquid as an efficient promoting medium for synthesis of dimethyl carbonate by oxidative carbonylation of methanol

Paper ID Volume ID Publish Year Pages File Format Full-Text
43196 45958 2008 6 PDF Available
Title
Ionic liquid as an efficient promoting medium for synthesis of dimethyl carbonate by oxidative carbonylation of methanol
Abstract

The synthesis of dimethyl carbonate by oxidative carbonylation of methanol using Cu salt catalysts in the presence of various room temperature ionic liquids (RTILs) was reported. Among the ionic liquids used, N-butylpyridinium tetrafluoroborate was the most effective promoter in terms of the conversion of methanol and the selectivity to dimethyl carbonate (DMC). The influences of reaction temperature, pressure, time, molar ratio of CO/O2, and amount of the ionic liquid on the oxidative carbonylation of methanol were investigated. The results indicated that under the reaction conditions of 120 °C and 2.4 MPa of a 2:1 mixture of CO and O2, 17.2% conversion of methanol, 97.8% selectivity of DMC and a DMC productivity of 4.6 g g−1 cat h−1 were achieved. The N-butylpyridinium tetrafluoroborate-meditated CuCl catalyst system could be reused at least five recycles with the same selectivity and a slight loss of catalytic activity due to loss of the catalyst during handling and transferring the reaction mixture.

Graphical abstractThe N-butylpyridinium tetrafluoroborate-meditated CuCl catalyst system could be a very effective catalyst system for oxidative carbonylation of methanol to give dimethyl carbonate. The catalyst system could be reused at least five recycles with the same selectivity and only a slight loss of catalytic activity due to loss of the catalyst during handling and transferring the reaction mixture. Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Ionic liquids; Dimethyl carbonate; Cu-based catalysts; oxidative carbonylation; Methanol
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Ionic liquid as an efficient promoting medium for synthesis of dimethyl carbonate by oxidative carbonylation of methanol
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 334, Issues 1–2, 1 January 2008, Pages 100–105
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
Online Support
Any Questions? feel free to contact us