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Highly efficient epoxidation of styrene and α-pinene with air over Co2+-exchanged ZSM-5 and Beta zeolites

Paper ID Volume ID Publish Year Pages File Format Full-Text
50679 46808 2012 4 PDF Available
Title
Highly efficient epoxidation of styrene and α-pinene with air over Co2+-exchanged ZSM-5 and Beta zeolites
Abstract

Co2+-exchanged zeolites (prepared simply by ion-exchange method) have been used in the epoxidation of styrene and α-pinene with air, in which Co-ZSM-5 and Co-Beta without any organic Schiff-base ligand or additive behaved as highly efficient catalysts. Co-ZSM-5 and Co-Beta achieved 88.4–92.4 mol% conversion with the overall selectivity of 94.6–96.6% for the epoxidation of styrene, and 92.8–90.6 mol% conversion with the selectivity of 86.1–88.3% for the epoxidation of α-pinene, respectively. Recycling studies and control experiments showed the stability and recyclability of Co-ZSM-5 and Co-Beta in the epoxidation reaction.

Graphical abstractSimple Co2+-exchanged ZSM-5 and Beta present highly catalytic epoxidation activity. Co-ZSM-5 and Co-Beta achieve 88.4–92.4 mol% conversion of styrene with the overall selectivity of 94.6–96.6% for styrene oxide, and 92.8–90.6 mol% conversion of α-pinene with the selectivity of 86.1–88.3% for α-pinene oxide, respectively.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Co-ZSM-5 and Co-Beta are prepared by a simple ion-exchange route. ► Both show high activities for the epoxidation of styrene and α-pinene with air. ► These solids are highly reusable heterogeneous catalysts.

Keywords
Co-ZSM-5; Co-Beta; α-Pinene; Styrene; Epoxidation; Air
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Highly efficient epoxidation of styrene and α-pinene with air over Co2+-exchanged ZSM-5 and Beta zeolites
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 21, 5 May 2012, Pages 68–71
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