Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Patent
1992-11-30
1997-06-10
Ivy, C. Warren
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
C07C 6963
Patent
active
056377614
ABSTRACT:
In the esterification of aliphatic C.sub.2 -C.sub.6 -carboxylic acids with aliphatic C.sub.1 -C.sub.4 -alcohols, the ester formed is removed by azeotropic distillation together with the water of reaction. After the water of reaction has been separated in a separating condenser, the ester phase is freed, by washing with water, from acid carried over, and water and alcohol are then removed by distilling off a small fraction of the ester.
In this way no salt-containing effluents are produced. The ester is obtained in a very good yield, free from acid and alcohol.
REFERENCES:
patent: 4239492 (1980-12-01), Andoh et al.
patent: 4329492 (1982-05-01), Andoh et al.
patent: 4837357 (1989-06-01), Merger et al.
Miltenberger Karlheinz
Petz Karl
Schmidt Manfred
Hoechst Aktiengesellschaft
Ivy C. Warren
Padmanabhan S.
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