Gas-Phase Hydroformylation of Propene over Silica-Supported PPh3-Modified Rhodium Catalysts
Kim T, Celik FE, Hanna DG, Shylesh S, Werner S, Bell AT (2011)
Publication Type: Journal article
Publication year: 2011
Journal
DOI: 10.1007/s11244-011-9664-3
Abstract
Heterogeneous rhodium catalysts supported on SiO$_2$ were modified with PPh$_3$ for the gas-phase hydroformylation of propene to produce n- and isobutanal. High selectivity to aldehydes was achieved, with no propane or alcohols formed. Investigation of the effects of reaction temperature, reactant partial pressures, total pressure, and PPh$_3$/Rh ratio suggested that the supported catalyst behaved similarly to the homogeneous catalyst. In particular, the supported catalyst showed similar activation energies and partial and total pressure dependences of the reaction rates to those observed in homogeneous, liquidphase reactions. The first order dependence of the hydroformylation rate on the partial pressures of propene, CO, and H$_2$ individually led to a cubic dependence of butanal formation on total pressure for equimolar reactant mixtures. High regioselectivity with a typical n/i ratio of 14 was achieved.
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APA:
Kim, T., Celik, F.E., Hanna, D.G., Shylesh, S., Werner, S., & Bell, A.T. (2011). Gas-Phase Hydroformylation of Propene over Silica-Supported PPh3-Modified Rhodium Catalysts. Topics in Catalysis. https://dx.doi.org/10.1007/s11244-011-9664-3
MLA:
Kim, Taejin, et al. "Gas-Phase Hydroformylation of Propene over Silica-Supported PPh3-Modified Rhodium Catalysts." Topics in Catalysis (2011).
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