Ester co-production

Details Ester co-production Ester co-production

C - Chemistry, Metallurgy

07

C

C07C 69/14 (2006.01) C07C 67/08 (2006.01)

Patent

CA 2256626

This invention relates to a process for the simultaneous co-production of ethyl acetate and n-butyl acetate, in a reaction of a mixture of ethanol and n-butanol with acetic acid in the liquid phase in the presence of an acidic catalyst using a series or reactor and distillation columns so as to recover substantially pure ethyl acetate and substantially pure n-butyl acetate. The process is capable of using relatively impure reactants and provides for removing some of the aldehyde type impurities by the use of resin guard beds.

L'invention concerne un procédé de co-production simultanée d'acétate d'éthyle et d'acétate de n-butyle par la mise en réaction d'un mélange d'éthanol et de n-butanol et d'un acide acétique dans la phase liquide, en présence d'un catalyseur acide, au moyend'une série de colonnes de réaction et de distillation. On récupère ainsi un acétate d'éthyle sensiblement pur et un acétate de n-butyle sensiblement pur. Ledit procédé peut mettre en oeuvre des réactifs relativement impurs, et permet d'éliminer une partie des impuretés de type aldéhyde par l'utilisation de lits de résine de protection.

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