Process of manufacturing diaryl esters of dicarboxylic acids

Details Process of manufacturing diaryl esters of dicarboxylic acids Process of manufacturing diaryl esters of dicarboxylic acids

Filed on

1982-09-24

Date issued

1984-05-29

Examiner

Trousof, Natalie

Patent Class

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

SubClass

Organic compounds

SubSubClass

Carboxylic acid esters

Other Related Categories

260455R, 260456P, 560 11, 560 18, 560 37, 560 48, 560 52, 560 73, 560 85, 560139, 560142, 560146, 568 15, C07C 6708

Type

Patent

Status

active

Patent number

044516649

Description

ABSTRACT:
An improved process for preparing diaryl esters of a monohydroxy aromatic compound with dicarboxylic acids is disclosed, in which the esterification reaction is optimized by continuously removing water and/or other by-products of the reaction from the reactor, while supplying to the reactor a make-up amount of the monohydroxy aromatic compound containing no more than about 100 ppm of water. The make-up stream may be obtained by stripping the by-product stream of water and other by-products of the reaction.

REFERENCES:
patent: 3356712 (1967-12-01), Renckhoff et al.
patent: 3389164 (1968-06-01), Renckhoff et al.
patent: 3413336 (1968-11-01), Hulsmann et al.
patent: 3471549 (1969-10-01), Hulsmann et al.
patent: 3772389 (1973-11-01), Lowrance

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