Acetone Reaction with Hydrogen over Mesoporous Magnesium Oxide-Supported Rhodium Nanoparticles.

Acetone is a cheap commodity chemical which can be used as an intermediate for the synthesis of numerous chemicals. Coupled with reductive hydrogenation, a multifunctional heterogeneous catalyst is required for the green chemistry of aldol condensation of acetone to produce β-hydroxyketone, enone (α,β-unsaturated ketone), ketone, and saturated and unsaturated alcohol. To that end, we prepared a rhodium nanoparticle-supported (RhNPs) on mesoporous magnesia to conduct a one-step, gas-phase acetone self-condensation. We observed both acetone conversion and selectivity towards either isopropyl alcohol or methyl isobutyl ketone depended on the hydrogen to acetone mole ratio, total flow rate, and reaction temperature. The optimum reaction conditions for a maximum yield of isopropyl alcohol (IPA) or methyl isobutyl ketone (MIBK) were established. Furthermore, 100 h on stream evidenced the long stability of our synthesized catalyst system for the production of isopropyl alcohol. [ABSTRACT FROM AUTHOR]

Copyright of Topics in Catalysis is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)