Transesterification of cyclohexyl acrylate with n-butanol and 2-ethylhexanol: acid trated clay, ion exchange resins and tetrabutyl titanate as catalysts

摘要

Transesterification of cyclohexyl acrylate with n-butanol and 2-ethylhexanol was stuided in a batch reactor using an acid-treated clay, ion exchange resins and tetrabutyl titanates as catalysts. The effect of various parameters on the conversion of cyclohexyl acrylate and towards the selectivity of cyclohexanol were studied to optimise the reaction conditions. The transesterfied esters (n-butyl acrylate and 2-ethylhexyl) were separated from the reaction mixture by fractional vacuum distillation and were characterised by ~1H NMR. The experimental results were described by a kinetic model based on Langmuir-Hinshelhood-Hougen-Watson (LHHW) mechanism for the transesterification of cyclohexyl acrylate with n-butanol in the presence of Engelhard F-24 as catalyst and the kinetic parameters were evaluated.