Patent · US Expired

Process and apparatus for gassing liquids

US4377395A · kind A · utility

3Cited by

10References

9Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Peter Herbrechtsmeier · Königstein, DE
Hans-Ludwig Schafer · Hochheim, DE
Rudolf Steiner · Bassersdorf, CH

Key dates

Filing date	Mar 24, 1981
Grant date	Mar 22, 1983
Priority date	—
Expiry date	Mar 24, 2001

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02W10/10
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The invention provides a process for multistep gassing of liquids streaming downward in a gassing apparatus, which comprises using a gassing apparatus consisting of at least two superposed downstream parts, wherein the gas is fed in at the upper end of each downstream part, the gas bubbles are separated at the lower end of each downstream part and the separated gas bubbles are discharged to the outside. The invention provides furthermore a corresponding gassing apparatus.

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