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:
Nov. 27, 1979
Filed:
Mar. 10, 1978
Applicant:
Inventor:
Finn H Dethloff, Oslo, NO;
Assignees:
Ardal og Sunndal Verk a.s., Oslo, NO;
Alcan Research and Development Limited, Montreal, CA;
Primary Examiner:
Int. Cl.
CPC ...
B04C / ; B01D / ; B01J / ; C25C / ;
U.S. Cl.
CPC ...
204 67 ; 204247 ; 204266 ; 422145 ; 55 71 ; 55 79 ; 34 12 ; 34 5 / ; 34168 ;
Abstract
In the scrubbing of gases containing sorbable contaminants, particularly the waste gases from reduction cells for electrolytic production of aluminium the waste gas is injected tangentially into the bottom of a cylindrical chamber, from which it is withdrawn through an axial outlet passage at the top end. A solid sorbent material is introduced into the chamber at one or more positions at the top end of the chamber in such a way that it enters the ascending gas stream in a peripheral zone of the chamber.