Patent · US Expired

Method of separating and recovering components of mixtures via pervaporization

US5108549A · kind A · utility

13Cited by

9References

9Claims

0Family size

Assignee

GKSS-Forschungszentrum Geesthacht GmbH · DE

Inventors

Axel Wenzlaff · Escheburg, DE
Dieter Behling · Hamburg, DE
Karl W. Boddeker · Mölln, DE

Key dates

Filing date	Feb 23, 1990
Grant date	Apr 28, 1992
Priority date	—
Expiry date	Feb 23, 2010

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S203/09
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A method of separating and recovering components of a mixture having a gap in the range of miscibility and including organic compounds and water in a pervaporization process with the aid of membranes. The mixture is first separated into an organically loaded water phase and a water-saturated organic phase. Subsequently, the organically loaded water phase and the water-saturated organic phase are separately subjected to parallel, different pervaporization processes, resulting in retentates as water on the one hand and organic liquid on the other hand. The permeates that result during the pervaporization processes are subsequently returned to the mixture that is to be separated.

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