The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 22, 1983
Filed:
Mar. 24, 1981
Applicant:
Inventors:
Peter Herbrechtsmeier, Hofheim am Taunus, DE;
Hans Schafer, Bad Soden am Taunus, DE;
Rudolf Steiner, Sulzbach, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01F / ; B01D / ;
U.S. Cl.
CPC ...
55 38 ; 55 51 ; 55196 ; 210220 ; 2611 / ;
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.