Kelkar, Ashutosh A. ; Jaganathan, Rengaswamy ; Chaudhari, Raghunath V. (2001) Hydrocarbonylation of methyl acetate using a homogeneous Rh(CO)Cl(PPh3)2 Complex as a catalyst Precursor: kinetic modeling Industrial & Engineering Chemistry Research, 40 (7). pp. 1608-1614. ISSN 0888-5885
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Official URL: http://pubs.acs.org/doi/abs/10.1021/ie000311i
Related URL: http://dx.doi.org/10.1021/ie000311i
Abstract
The kinetics of hydrocarbonylation of methyl acetate to ethylidene diacetate (EDA) using the Rh(CO)Cl(PPh3)2/PPh3/MeI catalyst system was studied in a temperature range of 433-463 K. Concentration-time profiles were obtained for different reaction conditions such as concentrations of methyl acetate, methyl iodide, and catalyst and partial pressures of CO and hydrogen. Rate equations were proposed on the basis of a reaction mechanism with [Rh(CO)2I2]- as the catalytically active species. Activation energies for acetic anhydride (Ac2O) and EDA formation were found to be 80.72 and 91.79 kJ/mol, respectively. A semibatch reactor model was developed, and the effect of the carbon-monoxide-to-hydrogen ratio on the conversion of methyl acetate and selectivity to EDA is discussed.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Chemical Society. |
| ID Code: | 7827 |
| Deposited On: | 25 Oct 2010 10:15 |
| Last Modified: | 28 May 2011 11:54 |
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