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:
Dec. 17, 1985
Filed:
Feb. 15, 1984
Applicant:
Inventors:
Peter Diemer, Essen, DE;
Hans J Wohner, Essen, DE;
Assignee:
Krupp Koppers GmbH, Essen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01C / ; C02F / ; B01D / ;
U.S. Cl.
CPC ...
423237 ; 210712 ; 210750 ;
Abstract
In a multi-stage washing process for the removal of ammonia from coking oven gas, a portion of waste water, produced during the separation of ammonia from ammonia-containing water in an ammonia still, is supplied to an ammonia water at the final stage of washing, at which ammonia is washed out from gas with ammonia-free water.