Esters are an important pharmaceutical intermediates and very useful perfumery agents. In this study the esterification of acetic acid with n-butanol and iso-butanol over an acidic cation exchange resin, Amberlyst 15 were carried out. The effects of certain parameters such as temperature, catalyst loading, initial molar ratio between reactants on the rate of reaction were studied. The experiments were conducted in a stirred batch reactor in the temperature range of 351.15 K to 366.15K.Variation of parameters on rate of reaction demonstrated that the reaction was intrinsically controlled.The activation energy for the esterification of acetic acid with n-butanol and iso butanol is found to be 28.45 k J/mol and 23.29 kJ/mol respectively. ©2011 BCREC UNDIP. All rights reserved.

(Received: 16th December 2010, Revised: 19th March 2011; Accepted: 7th April 2011)

[How to Cite: A.P. Toor, M. Sharma, G. Kumar, and R. K. Wanchoo. (2011). Kinetic Study of Esterification of Acetic Acid with n-butanol and isobutanol Catalyzed by Ion Exchange Resin. Bulletin of Chemical Reaction Engineering and Catalysis, 6(1): 23-30. doi:10.9767/bcrec.6.1.665.23-30]

[How to Link / DOI: http://dx.doi.org/10.9767/bcrec.6.1.665.23-30 ]

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Bubble point temperatures at atmospheric pressure of 95.2 kPa are measured for the binary systems propan-1-ol (1) + 1-phenylethanone (2), propan-2-ol (1) + 1-phenylethanone (2), 2-methyl-1-propanol (1) + 1-phenylethanone (2), and 2-butanol (1) + 1-phenylethanone (2) using a Swietoslawski-type ebulliometer. The liquid-phase mole fraction, x 1 , versus bubble point temperature, T, measurements are found to be well represented by the Wilson model. The optimum Wilson parameters are used to calculate the vapor-phase composition, activity coefficients, and excess Gibbs free energy and the results compared with the values of activity coefficients of the mixtures calculated using the UNIFAC group contribution method. The results are discussed.

Isobaric vapor−liquid equilibrium data at a local atmospheric pressure of 96.5 kPa is reported for the four binary systems, namely, 2-methyl propan-2-ol (1) + heptan-1-ol (2), methanol (1) + heptan-1-ol (2), ethanol (1) + heptan-1-ol (2), and propan-1-ol (1) + heptan-1-ol (2). The experiments are done using a Swietoslawski-type ebulliometer. The liquid-phase activity coefficients are modeled using the well-established Wilson model and the universal functional (UNIFAC) group contribution method. The data are found to be thermodynamically consistent.