Patent · US Expired

Method and apparatus for recovering solvents

US5214924A · kind A · utility

5Cited by

5References

15Claims

0Family size

Assignees

Herco-Kuhltechnik Hermans & Co. · DE
Air Products GmbH Werk Hattigen · DE

Inventors

Michael Karthaus · Neuss, DE
Klaus Hermanns · Aßlar, DE
Peter Hermanns · Aachen, DE

Key dates

Filing date	Dec 13, 1991
Grant date	Jun 1, 1993
Priority date	—
Expiry date	Dec 13, 2011

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S62/913
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

In a method and an apparatus for avoiding or reducing trouble-induced time delays in solvent recovery from production processes, apart from the solvent circuit and apart from the supplying of the locks with carrier gas, when necessary via at least one separate supply conduit a metered amount of pure carrier gas is supplied to the production plant and at the same time via at least one separate discharge conduit a substantially corresponding amount of mixture of carrier gas and solvent is withdrawn.

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