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Synthesis of adipic acid catalyzed by surfactant-type peroxotungstates and peroxomolybdates

Paper ID Volume ID Publish Year Pages File Format Full-Text
52050 46863 2008 5 PDF Available
Title
Synthesis of adipic acid catalyzed by surfactant-type peroxotungstates and peroxomolybdates
Abstract

Four surfactant-type peroxotungstates and peroxomolybdates have been synthesized and characterized. Their catalytic activities for 30 wt.% H2O2 oxidation of cyclohexene, cyclohexanol, cyclohexanone and 1,2-cyclohexanediol to adipic acid were evaluated without organic solvent and phase-transfer catalyst. The surfactant-type polyoxoperoxometalates act as not only a catalyst but also a phase-transfer agent, which can form the emulsion droplets. The emulsion droplets are in the highly dispersed form and behave like homogeneous catalysts with high activities. Long carbolic chain cation assembled in the interface of the emulsion droplets, peroxotungsten anion-containing catalysts exhibited high activities. However, peroxomolybdenum anion-containing catalysts exhibited low activities.

Keywords
Surfactant-type polyoxoperoxometalates; Catalytic oxidation; Green synthesis; Hydrogen peroxide; Adipic acid
First Page Preview
Synthesis of adipic acid catalyzed by surfactant-type peroxotungstates and peroxomolybdates
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 9, Issue 4, 15 March 2008, Pages 551–555
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis