Patent · US Expired

Coupled production of two esters

US7115773B2 · kind B2 · utility

0Cited by

1References

11Claims

0Family size

Assignee

CELANESE CHEMICALS EUROPE GMBH · DE

Inventors

Eckhard Schulz · Wallenhorst, DE
Helmut Bauer · Schreiber, CA
Klaus Dieter Merscher · Büttelborn, DE

Key dates

Filing date	Sep 7, 2001
Grant date	Oct 3, 2006
Priority date	—
Expiry date	Sep 7, 2021

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C67/54
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The invention relates to a method for the coupled production of two esters by reacting a mixture of aliphatic alcohols with an aliphatic carboxylic acid and then treating the resulting mixture by distillation. During the distillation process, a side flow that is taken from the distillation column that is connected downstream of the esterification reactor is fed back into said esterification reactor. The pure ester compounds are obtained from the bottom of the distillation columns that are connected downstream of the esterification reactor.

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