Patent · US Expired

Method of separating and recovering components of mixtures via pervaporization

US5203969A · kind A · utility

5Cited by

10References

16Claims

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	Oct 7, 1991
Grant date	Apr 20, 1993
Priority date	—
Expiry date	Oct 7, 2011

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S210/05
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 having 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.