Patent · US Expired

Distillative separation of liquid mixtures of substances

US4720327A · kind A · utility

6Cited by

12References

2Claims

0Family size

Assignee

BASF SE

Inventors

Werner Aquila · Mannheim, DE
Axel Nissen
Gerd Kaibel · Lampertheim, DE
Michael Horner · Neustadt, DE
Walter Rebafka · Eppelheim, DE

Key dates

Filing date	Sep 20, 1982
Grant date	Jan 19, 1988
Priority date	—
Expiry date	Sep 20, 2002

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S203/90
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Distillative separation of liquid mixtures of one or more water-insoluble substances which have boiling points higher than that of water and one or more substances which have boiling points lower than that of water or which form azeotropes having boiling points lower than that of water, wherein the mixture to be distilled is mixed with a quantity of water such that the boiling point of the water under the pressure applied limits the bottom temperature of the mixture of substances to be separated.

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