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:
Sep. 25, 2018
Filed:
Oct. 02, 2013
Applicant:
Outotec (Finland) Oy, Espoo, FI;
Inventors:
Jochen Güntner, Kahl, DE;
Peter Sturm, Karben, DE;
Maciej Wrobel, Karben, DE;
Jörg Hammerschmidt, Erlensee, DE;
Ake Holmström, Katthammarsvik, SE;
Gunnar Berg, Skelleftea, SE;
Assignee:
Outotec (Finland) Oy, Espoo, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22B 7/02 (2006.01); B01D 53/76 (2006.01); C22B 1/24 (2006.01); C22B 15/00 (2006.01); B01D 53/64 (2006.01); B01D 53/83 (2006.01);
U.S. Cl.
CPC ...
C22B 7/02 (2013.01); B01D 53/64 (2013.01); B01D 53/76 (2013.01); B01D 53/83 (2013.01); C22B 1/24 (2013.01); C22B 15/00 (2013.01); C22B 15/0026 (2013.01); B01D 2251/20 (2013.01); B01D 2251/204 (2013.01); B01D 2251/208 (2013.01); B01D 2251/21 (2013.01); B01D 2257/60 (2013.01); C22B 15/0028 (2013.01); Y02P 10/212 (2015.11);
Abstract
A method for the treatment of flue dusts containing arsenic and/or antimony from pyrometallurgical methods, wherein a reducing agent is added to the flue dusts, the flue dusts are heated together with the reducing agent, and volatile components are separated from a slag. The reducing agent is a carbonaceous compound.