2007•International Journal of Molecular SciencesOpen access

Catalytic Ring Hydrogenation of Benzoic Acid with Supported Transition Metal Catalysts in scCO2

Hongjun Wang, Fengyu Zhao

Abstract

The ring hydrogenation of benzoic acid to cyclohexanecarboxylic acid overcharcoal-supported transition metal catalysts in supercritical CO2 medium has been studiedin the present work. The cyclohexanecarboxylic acid can be produced efficiently insupercritical CO2 at the low reaction temperature of 323 K. The presence of CO2 increasesthe reaction rate and several parameters have been discussed.

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Key concepts: Cyclohexanecarboxylic acid, Benzoic acid, Catalysis, Supercritical fluid, Chemistry, Ring (chemistry), Transition metal, Metal