Process for the manufacture of esters

Details Process for the manufacture of esters Process for the manufacture of esters

1992-08-24

1994-04-12

Prescott, Arthur C.

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

Organic compounds

Carboxylic acid esters

C07C 6702

Patent

active

053027477

ABSTRACT:
A method and apparatus for producing esters without the aid of a conventional acid catalyst. A mixture of a monohydric aliphatic alcohol and a lower carboxylic acid is provided in a reaction vessel equipped with a fractionating column connected to a condenser and a collecting vessel. Heating means and a device for passing small bubbles of gas through the reactants are included. The alcohol/carboxylic acid mixture is maintained at a temperature of at least about the boiling point of the alcohol, but below about the boiling point of the carboxylic acid, and a gas inert to the esterification reaction is bubbled through the mixture to remove the esterification product therein formed. The removed vapors are collected and condensed, and the esterification product is recovered in high conversion and purity.

REFERENCES:
patent: 1454462 (1923-05-01), Backhaus
patent: 2015870 (1935-10-01), Ricard et al.
patent: 3131212 (1964-04-01), Biller
patent: 3845121 (1974-10-01), Eubanks et al.
patent: 5144068 (1992-09-01), Smith et al.

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