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Co2 +-exchanged MOR and 5A zeolites as efficient solid catalysts for the epoxidation of styrene with air

Paper ID Volume ID Publish Year Pages File Format Full-Text
49754 46764 2014 5 PDF Available
Title
Co2 +-exchanged MOR and 5A zeolites as efficient solid catalysts for the epoxidation of styrene with air
Abstract

•Co2 +-exchanged MOR and 5A are first used in the aerobic epoxidation of alkenes.•89.4–94.2 mol% conversion of styrene with epoxide selectivity of > 90% is obtained.•A route to catalyze epoxidation of alkenes over simply prepared cheap catalysts.

Selective oxidation of alkenes with air to corresponding epoxides was performed over simple ion-exchanged Co-MOR and Co-5A. Among all transition metal ions-exchanged M-zeolites, both Co-MOR and Co-5A exhibited the highest activity at 363 K. Notably, for the epoxidation of styrene, α-pinene, α-methyl styrene and cyclooctene, Co-MOR obtained higher conversions than Co-5A, in agreement with the difference of pore sizes of both zeolitic materials. Recycling and control tests showed high durability of Co-MOR as a heterogeneous catalyst in our catalytic system.

Keywords
Cobalt ion-exchange; Mordenite; 5A; Epoxidation of styrene; Air
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Co2 +-exchanged MOR and 5A zeolites as efficient solid catalysts for the epoxidation of styrene with air
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 45, 5 February 2014, Pages 124–128
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
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Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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