Patent · US Active

Method for producing carboxylic acid esters

US9260373B2 · kind B2 · utility

5Cited by

8References

7Claims

0Family size

Assignee

BASF SE

Inventors

Walter Disteldorf · Monsheim, DE
Jarren Peters · Mannheim, DE
Thomas Schäfer · Basel, CH
Katrin Friese · Mannheim, DE
Christoph Übler · Lautersheim, DE

Key dates

Filing date	Nov 11, 2014
Grant date	Feb 16, 2016
Priority date	—
Expiry date	Nov 11, 2034

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C67/08
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The invention relates to a method for producing carboxylic esters by converting a carboxylic acid or a carboxylic acid anhydride or a mixture thereof with an alcohol in a reaction system comprising one or more reactors, wherein reaction water is distilled as alcohol-water-azeotrope with the vapors, the vapors are at least partially condensed, the condensate is separated into an aqueous phase and an organic phase and said organic phase is supplied at least partially back into said reaction system. Components boiling lower than the alcohol are at least partially removed from said returned organic phase such as wherein components boiling lower than alcohol are evaporated and/or distilled off. An enrichment in the reaction system of by-products boiling lower than alcohol is avoided. Alcohol losses can be minimized by discharge currents.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.