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Epoxidation of styrene with molecular oxygen over binary layered double hydroxide catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
41212 45880 2011 7 PDF Available
Title
Epoxidation of styrene with molecular oxygen over binary layered double hydroxide catalysts
Abstract

Binary layered double hydroxides (LDHs) of Mg–Al and Co–Al having varied cation molar ratio were studied for the catalytic epoxidation of styrene with molecular O2 as an oxidant and DMF as a solvent. The effect of various reaction variables, reconstruction and reuse of LDH samples on the catalytic activity was evaluated. The cation molar ratio of LDH as well as concentration of DMF significantly affected the catalytic activity. The highest styrene conversion was observed with LDH having cation molar ratio (Mg/Co:Al) of 3:1. Mg–Al LDH showed highest styrene conversion of 85% with 80% styrene oxide selectivity and Co–Al LDH sample exhibited highest styrene conversion of 97% with 83% oxide selectivity at 100 °C after 4 h.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (15 K)Download as PowerPoint slideHighlights► Mg/Co–Al binary LDH solid base catalysts for styrene epoxidation with O2 in DMF. ► Significant affect of cation molar ratio on catalytic activity. ► Highest activity shown by cation molar ratio (Mg/Co:Al) of 3:1. ► Co–Al LDH showed higher activity and reusability than Mg–Al LDH. ► Activity increased by increasing DMF amount.

Keywords
Epoxidation; Styrene; Molecular oxygen; Binary LDH; Hydrotalcite
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Epoxidation of styrene with molecular oxygen over binary layered double hydroxide catalysts
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 408, Issues 1–2, 28 November 2011, Pages 171–177
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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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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Any Questions? feel free to contact us