Method of producing ethyl acetate and an equipment for carrying out this method
AssigneeSulzer Chemtech AG
InventorsJiri Kolena, Jaromir Lederer, Pavel Morávek, Jiri Hanika, Quido Smejkal, David Skála
Life of this patent
Estimating the term…
Loading patent…
AssigneeSulzer Chemtech AG
InventorsJiri Kolena, Jaromir Lederer, Pavel Morávek, Jiri Hanika, Quido Smejkal, David Skála
Estimating the term…
The invention relates to a method of producing ethyl acetate by reaction of ethyl alcohol with acetic acid and/or acetic anhydride in the presence of a solid acidic catalyst accompanied by simultaneous distillation separation of reaction components, in which acetic acid or acetic anhydride or a mixture thereof and ethyl alcohol, respectively, are introduced separately in a molar ratio of 2:1 to 1:2.5 and in a defined quantity, per unit volume of catalyst, into a system separated into three zones, whereby, in the reaction zone, the reaction runs simultaneously with distillation separation of components, acetic acid feed is introduced into the reaction zone or above the zone and ethyl alcohol feed is introduced into the reaction zone or below this zone; in the upper separation zone, the volatile mixture is separated; thereafter, it is cooled to 5 to 70° C. and then separated into water and organic phases and the organic phase with a high ethyl acetate content is drawn off and partially returned as reflux flow into this system, whereby, the ratio of the starting components feed and the organic reflux flow is 1:1 to 1:20. This invention also relates to equipment for carrying out this method.
A method of producing ethyl acetate by reaction of ethyl alcohol with acetic acid and/or acetic anhydride in the presence of a solid acidic catalyst accompanied by simultaneous distillation separation of reaction components, characterized in that acetic acid or acetic anhydride or a mixture thereof, and ethyl alcohol, respectively, are introduced separately in a molar ratio of 2:1 to 1:2.5 and in a quantity, expressed as a total flow rate of 0.1 to 10 h−1 of the introduced components, per unit volume of catalyst, into a system, in which system the reaction and the distillation separation are carried out in three zones, whereby, in the reaction zone, which is centrally located between an upper separation zone and a lower separation zone, the reaction runs simultaneously with the distillation separation of components having different boiling points, while separation of components takes place in said upper and lower separation zones, whereby water produced as a by-product of the reaction forms a low-boiling azeotropic mixture with ethyl acetate, and distills completely or partially from the system;
Dependencies are inferred from the claim text.