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:
Apr. 03, 2001
Filed:
Jul. 27, 1994
Applicant:
Inventors:
Wilhelm Karner, Eichgraben, AT;
Dietfried Gamsriegler, Wiener Neustadt, AT;
Assignee:
Andritz-Patentverwaltungs-Gesellschaft m.b.H, Graz, AT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 7/01 ; C01B 7/03 ; C23F 1/46 ; C23G 1/36 ;
U.S. Cl.
CPC ...
C01B 7/01 ; C01B 7/03 ; C23F 1/46 ; C23G 1/36 ;
Abstract
In order to reduce pollutants in the waste gas of regeneration plants for spent hydrochloric acid from pickling plants a process is provided, comprising the thermal decomposition of iron chloride in the spent pickling acid to iron oxide and gaseous hydrochloric acid, wherein to the spent pickling acid at least one compound is admixed which contains nitrogen having a low oxidation number, for example ammonium compounds, ammonia, urea or amides.
Karner, Wilhelm. (2001). Process for regenerating hydrochloric acid from pickling plants (U.S. Patent No. 6210650). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6210650
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile