Patent · US Active

Method for producing carboxylic acid esters

US8901343B2 · kind B2 · utility

1Cited by

6References

9Claims

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	Dec 15, 2009
Grant date	Dec 2, 2014
Priority date	—
Expiry date	Sep 15, 2030

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.