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Co2 +-exchanged SAPO-5 and SAPO-34 as efficient heterogeneous catalysts for aerobic epoxidation of alkenes

Paper ID Volume ID Publish Year Pages File Format Full-Text
50460 46795 2013 6 PDF Available
Title
Co2 +-exchanged SAPO-5 and SAPO-34 as efficient heterogeneous catalysts for aerobic epoxidation of alkenes
Abstract

Co-SAPO-5 and Co-SAPO-34 were prepared by a simple ion-exchange route and firstly applied in the aerobic epoxidation of alkenes. Both catalysts exhibited high activities in the epoxidation of alkenes with air to achieve 92.0–91.9 mol% conversion with the epoxide selectivity of 89.5–90.5% for styrene, 71.6–80.0 mol% conversion with 94.8–95.0% selectivity for α-pinene, and 95.3–96.8 mol% conversion with 75.2–73.6% selectivity for α-methyl styrene. Recycling studies and control experiments showed the recyclability and stability of Co-SAPO-5 and Co-SAPO-34 as heterogeneous catalysts.

Graphical abstractCo-SAPO-5 and Co-SAPO-34 prepared by a simple ion-exchange method, displayed highly catalytic activity for the epoxidation of styrene, α-methyl styrene and α-pinene with air.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Co-SAPO-5 and Co-SAPO-34 are firstly applied in the aerobic epoxidation of alkenes. ► Two catalysts exhibit excellent catalytic performance. ► These solids are highly stable heterogeneous catalysts.

Keywords
Alkene epoxidation; Co-SAPO-5; Co-SAPO-34; Air
First Page Preview
Co2 +-exchanged SAPO-5 and SAPO-34 as efficient heterogeneous catalysts for aerobic epoxidation of alkenes
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 31, 10 January 2013, Pages 42–47
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis