Abstract
The transesterification of ethyl acetate by menthol is carried out in a chromatographic column. The chromatographic material is a cation exchange resin in strong acid form, which also catalyses the reaction. Limited quantities of menthol are injected into pure ethyl acetate (reactive solvent). Since the reaction is limited by the thermodynamic equilibrium, it can be forced to completion by the separation between ethanol and menthyl acetate. The selected product is collected pure in ethyl acetate and in a relatively concentrated fraction. The residence time is determined in such a way that the reaction rate is not limiting. We propose an optimum design for the chromatographic reactor.
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