Author:
Kastratović Vlatko,Radulović Milica,Kastratović Kristina
Abstract
Esters are organic compounds that are widely used even on an industrial scale, so their production has been extensively investigated. The aim of this work is to carry out the optimization process of esterification of propionic acid with lower monohydric alcohols. The influence of the amount of catalyst (H2SO4), the size and structure of the alcohol, the influence of the a-substituent, the molar acid/alcohol ratio and temperature on the esterification process were investigated. The descending order of reactivity tested alcohol is: 1-butanol> 1-propanol> ethanol> 2-propanol. As the acid/alcohol molar ratio increases, the rate and yield of the esterification reaction increase. The maximum yield of n-propyl propanoate in our experiments was 96.9%, achieved at a molar ratio of propanoic acid/1-propanol/catalyst 1/10/0.20 and a temperature of 65°C for 210 minutes of reaction.
Publisher
Centre for Evaluation in Education and Science (CEON/CEES)
Subject
General Earth and Planetary Sciences,General Environmental Science
Reference27 articles.
1. ALI, S.H. (2009): Kinetics of catalytic esterification of propionic acid with different alcohols over Amberlyst 15. International Journal of Chemical Kinetics 41: 432-448. doi: 10.1002/kin.20416;
2. ALI, S.H., TARAKMAH, A., MERCHANT, S.Q., AL-SAHHAF, T. (2007): Synthesis of esters: development of the rate expression for the dowex 50 Wx8-400 catalyzed esterification of propionic acid with 1-Propanol. Chemical Engineering Science 62: 3197-3217. doi: 10.1016/j.ces.2007.03.017;
3. AL-JENDEEL, H.A., AL-HASSANI, M.H., ZEKI, N.S.A. (2010): Kinetic study of esterification reaction. Al-Khwarizmi Engineering Journal 6 (2): 33-42. ISSN: 1818-1171 (Print), 2312-0789 (Electronic);
4. ALTIC, L.E.P. (2010): Characterization of the esterification reaction in high free fatty acid oils. Graduate Theses and Dissertations. University of South Florida. Digital Commons @ University of South Florida;
5. BRAGA, V.S., BARROS, I.C.L., GARCIA, F.A.C., DIAS, S.C.L., DIAS, J.A. (2008): Esterification of acetic acid with alcohols using supported niobium pentoxide on silicaalumina catalysts. Catalysis Today 133 (35): 106-112. doi: 10.1016/j.cattod.2007.12.091;
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