Ester synthesis

Details Ester synthesis Ester synthesis

1996-07-26

1999-01-19

Shippen, Michael L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

C07C 6704

Patent

active

058615300

ABSTRACT:
This invention relates to a process for the production of lower aliphatic esters by reacting a lower olefin with a saturated lower aliphatic mono-carboxylic acid in the vapor phase in the presence of a heteropolyacid catalyst characterized in that an amount of water in the range from 1-10 mole % based on the total of the olefin, aliphatic mono-carboxylic acid and water is added to the reaction mixture during the reaction. The presence of water enhances the yield of the desired ester. The reaction mixture may optionally contain a di-ether to minimize the by-products.
The process is particularly suitable for producing ethyl acetate from ethylene and acetic acid in the presence of water.

REFERENCES:
patent: 2174985 (1939-10-01), Lazier
patent: 5086031 (1992-02-01), Deller
patent: 5241106 (1993-08-01), Inoue

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