[12] Patent
[11] Patent No.:GC0009453  
[45] Date of Publishing the Grant of the Patent: 31/Dec /2018                56/2018  
Number of the Decision to Grant the Patent:2018/142136
Date of the Decision to Grant the Patent:24/Dec/2018

[21] Application No.:GC 2014-27951

[22] Filing Date:21/9/2014

[30] Priority:

[33] State [32] Priority date [31] Priority No.
PCT
2/10/2013
PCT/EP2013/070585

[72] Inventors:1- Jochen Güntner،2- Dipl.-Ing. Peter Sturm،3- Maciej Wrobel،4- Dr.-Ing. Jörg Hammerschmidt،5- Ake Holmström،6- Gunnar Berg

[73] Owner: Outotec (Finland) Oy, Puolikkotie 10, Espoo 02230, Finland

[74] Agent: Saud M. A. Shawwaf Law Office

  

 

  

[51]IPC:
Int. Cl.: C22B 1/24, 15/00, 7/02 (2006.01)

[56] Cited Documents:

-US 3776533 A (VLNATY J) 4 December 1973  
Examiner: Rami Al-Ghamdi

[54] METHOD AND PLANT FOR REMOVING ARSENIC AND/OR ANTIMONY FROM FLUE DUSTS
[57] 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.
No. of claims: 10     No. of figures: 2


 

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