Patent · US Expired

Distillative separation of liquid mixtures containing aliphatic alcohols

US4383893A · kind A · utility

8Cited by

2References

6Claims

0Family size

Assignee

BASF SE

Inventors

Gerd Kaibel · Lampertheim, DE
Horst Hartmann · Dresden, DE
Waldhelm Hochstein · Freinsheim, DE
Franz Mueller · Fort Wayne, US

Key dates

Filing date	Apr 20, 1981
Grant date	May 17, 1983
Priority date	—
Expiry date	Apr 20, 2001

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C67/60
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Liquid mixtures containing aliphatic alcohols are separated, by distillation, into a higher-boiling alcohol-containing fraction and a lower-boiling fraction containing the other liquids, by carrying out the fractionation in the presence of water and of an alkanal and, over about 3/4 of the column height, in the presence of a non-volatile or only slightly volatile acid.

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