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Effect of iron content on selectivity in isomerization of α-pinene oxide to campholenic aldehyde over Fe-MMM-2 and Fe-VSB-5

Paper ID Volume ID Publish Year Pages File Format Full-Text
40195 45845 2014 7 PDF Available
Title
Effect of iron content on selectivity in isomerization of α-pinene oxide to campholenic aldehyde over Fe-MMM-2 and Fe-VSB-5
Abstract

•The rearrangement of α-pinene oxide to campholenic aldehyde over Fe-MMM and Fe-VSB-5 was studied.•Activity and selectivity of reaction towards campholenic aldehyde over Fe-VSB-5 and Fe-MMM-2 depend on iron content.•Amount of Fe in structure affects oligomeric state of Fe and amount of Lewis acid sites.•The unique structure of Fe-VSB-5 favours shape selectivity.

Isomerization of α-pinene oxide to campholenic aldehyde (CA) was investigated over Fe-containing mesoporous mesophase materials (Fe-MMM-2) and microporous nickel phosphate molecular sieves (Fe-VSB-5). Activity and selectivity of reaction towards CA over Fe-containing materials was found to depend on iron content in materials that affects oligomeric state of Fe and amount of Lewis acid sites. In the presence of Fe-VSB-5 selectivity towards CA increased with increase in iron content in structure, while that decreased in the presence of Fe-MMM-2. This phenomenon is related to change in agglomeration of iron species in Fe-MMM-2 structure. The high selectivity towards CA in the presence of Fe-VSB-5 was suggested to arise from unique structure of these materials, which favours shape selectivity.

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Keywords
Isomerization of α-pinene oxide; Fe-VSB-5; Fe-containing mesoporous materials; Lewis acidity
First Page Preview
Effect of iron content on selectivity in isomerization of α-pinene oxide to campholenic aldehyde over Fe-MMM-2 and Fe-VSB-5
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 469, 17 January 2014, Pages 427–433
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis