Yadav, Ganapati D. ; Kadam, Anup A. (2013) Selective engineering using Mg–Al calcined hydrotalcite and microwave irradiation in mono-transesterification of diethyl malonate with cyclohexanol Chemical Engineering Journal, 230 . pp. 547-557. ISSN 1385-8947
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/j.cej.2013.06.075
Abstract
Selectivity engineering aspects of synergism between microwave irradiation and solid base catalysis is investigated for a highly selective mono-transesterification of diethyl malonate with cyclohexanol using Mg–Al calcined hydrotalcite as catalyst. Microwave irradiation showed threefold increase in cyclohexanol conversion vis-a-vis conventional heating and only the mono-transesterified product was obtained. The catalyst was characterised by XRD, FT-IR, CO2-TPD, surface area and pore size analysis. Hydrotalcite with Mg:Al composition as 3:1 gave the best results. Effect of various parameters was studied on conversion and selectivity. Under optimised reaction conditions, 69% conversion with 98% selectivity for cyclohexyl ethyl malonate was obtained for catalyst loading of at 100 °C in 2 h. The catalyst showed excellent reusability. Complete theoretical and experimental analysis has been done to develop a kinetic model for the reaction.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Hydrotalcite; Microwave Irradiation; Diethyl Malonate; Cyclohexanol; Cyclohexyl Ethyl Malonate; Kinetics |
| ID Code: | 111535 |
| Deposited On: | 18 Sep 2017 12:08 |
| Last Modified: | 18 Sep 2017 12:08 |
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